GE Dust Collector 1601 0149 A2 User Manual

Title Page  
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GE Industrial Systems  
489  
Generator Management Relay  
COMMUNICATIONS GUIDE  
Software Revision: 3.00  
GE Publication Code: GEK-106495A  
GE Multilin Part Number: 1601-0149-A2  
Copyright © 2004 GE Multilin  
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Table of Contents  
489  
Communications Guide  
Table of Contents  
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489  
Table of Contents  
Communications Guide  
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489  
Modbus Protocol  
Communications Guide  
489 Communications Guide  
GE Publication Code: GEK-106495A  
GE Multilin Part Number: 1601-0149-A2  
Copyright © 2004 GE Multilin  
Modbus Protocol  
Electrical Interface  
The hardware or electrical interface is one of the following: one of two 2-wire RS485  
ports from the rear terminal connector or the RS232 from the front panel connector.  
In a 2-wire RS485 link, data flow is bidirectional. Data flow is half-duplex for both  
the RS485 and the RS232 ports. That is, data is never transmitted and received at  
the same time. RS485 lines should be connected in a daisy chain configuration  
(avoid star connections) with a terminating network installed at each end of the link,  
i.e. at the master end and at the slave farthest from the master. The terminating  
network should consist of a 120 resistor in series with a 1 nF ceramic capacitor  
when used with Belden 9841 RS485 wire. The value of the terminating resistors  
should be equal to the characteristic impedance of the line. This is approximately  
120 for standard #22 AWG twisted pair wire. Shielded wire should always be used  
to minimize noise. Polarity is important in RS485 communications. Each '+' terminal  
of every 489 must be connected together for the system to operate. Refer to the  
489 Instruction Manual for correct serial port wiring.  
Modbus RTU  
Description  
The 489 implements a subset of the AEG Modicon Modbus RTU serial communication  
standard. Many popular programmable controllers support this protocol directly with  
a suitable interface card allowing direct connection of relays. Although the Modbus  
protocol is hardware independent, the 489 interfaces include two 2-wire RS485  
ports and one RS232 port. Modbus is a single master, multiple slave protocol  
suitable for a multi-drop configuration as provided by RS485 hardware. In this  
configuration up to 32 slaves can be daisy-chained together on a single  
communication channel.  
The 489 is always a slave; it cannot be programmed as a master. Computers or  
PLCs are commonly programmed as masters. The Modbus protocol exists in two  
versions: Remote Terminal Unit (RTU, binary) and ASCII. Only the RTU version is  
supported by the 489. Monitoring, programming, and control functions are  
performed with read/write register commands.  
Data Frame Format and  
Data Rate  
One data frame of an asynchronous transmission to or from a 489 is default to 1  
start bit, 8 data bits, and 1 stop bit. This produces a 10-bit data frame. This is  
important for transmission through modems at high bit rates (11 bit data frames are  
not supported by Hayes modems at bit rates of greater than 300 bps). The parity bit  
is optional as odd or even. If it is programmed as odd or even, the data frame  
consists of 1 start bit, 8 data bits, 1 parity bit, and 1 stop bit.  
Modbus protocol can be implemented at any standard communication speed. The  
489 RS485 ports support operation at 1200, 2400, 4800, 9600, and 19200 baud.  
The front panel RS232 baud rate is fixed at 9600 baud.  
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489  
Modbus Protocol  
Communications Guide  
Data Packet Format  
A complete request/response sequence consists of the following bytes (transmitted  
as separate data frames):  
1. A Master Query Message consisting of: a 1-byte Slave Address, a 1-byte Func-  
tion Code, a variable number of Data Bytes depending on the Function Code,  
and a 2-byte CRC code.  
2. A Slave Response Message consisting of: a 1-byte Slave Address, a 1-byte  
Function Code, a variable number of Data Bytes depending on the Function  
Code, and a 2-byte CRC code.  
The terms Slave Address, Function Code, Data Bytes, and CRC are explained below:  
SLAVE ADDRESS: This is the first byte of every transmission. This byte  
represents the user-assigned address of the slave device that is to receive the  
message sent by the master. Each slave device must be assigned a unique  
address and only the addressed slave will respond to a transmission that starts  
with its address. In a master request transmission the Slave Address represents  
the address of the slave to which the request is being sent. In a slave response  
transmission the Slave Address represents the address of the slave that is  
sending the response. The RS232 port ignores the slave address, so it will  
respond regardless of the value in the message. Note: A master transmission  
with a Slave Address of 0 indicates a broadcast command. Broadcast commands  
can be used for specific functions.  
FUNCTION CODE: This is the second byte of every transmission. Modbus  
defines function codes of 1 to 127. The 489 implements some of these  
functions. In a master request transmission the Function Code tells the slave  
what action to perform. In a slave response transmission if the Function Code  
sent from the slave is the same as the Function Code sent from the master  
indicating the slave performed the function as requested. If the high order bit of  
the Function Code sent from the slave is a 1 (i.e. if the Function Code is greater  
than 127) then the slave did not perform the function as requested and is  
sending an error or exception response.  
DATA BYTES: This is a variable number of bytes depending on the Function  
Code. These may be actual values, setpoints, or addresses sent by the master  
to the slave or vice-versa. Data is sent MSByte first followed by the LSByte.  
CRC: This is a two byte error checking code. CRC is sent LSByte first followed  
by the MSByte. The RTU version of Modbus includes a two byte CRC-16 (16-bit  
cyclic redundancy check) with every transmission. The CRC-16 algorithm  
essentially treats the entire data stream (data bits only; start, stop and parity  
ignored) as one continuous binary number. This number is first shifted left 16  
bits and then divided by a characteristic polynomial (11000000000000101B).  
The 16-bit remainder of the division is appended to the end of the transmission,  
LSByte first. The resulting message including CRC, when divided by the same  
polynomial at the receiver will give a zero remainder if no transmission errors  
have occurred.  
If a 489 Modbus slave device receives a transmission in which an error is indicated  
by the CRC-16 calculation, the slave device will not respond to the transmission. A  
CRC-16 error indicates than one or more bytes of the transmission were received  
incorrectly and thus the entire transmission should be ignored in order to avoid the  
489 performing any incorrect operation. The CRC-16 calculation is an industry  
standard method used for error detection. An algorithm is included here to assist  
programmers in situations where no standard CRC-16 calculation routines are  
available.  
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489  
Modbus Functions  
Communications Guide  
CRC-16 Algorithm  
Once the following algorithm is complete, the working register “A” will contain the  
CRC value to be transmitted. Note that this algorithm requires the characteristic  
polynomial to be reverse bit ordered. The MSbit of the characteristic polynomial is  
dropped since it does not affect the value of the remainder.  
The symbols used in the algorithm are shown below:  
-->  
data transfer  
A; A  
; A  
16-bit working register; low and high order bytes of A (the 16-bit  
working register)  
low  
high  
CRC  
i, j  
16 bit CRC-16 result  
loop counters  
(+)  
N
logical EXCLUSIVE-OR operator  
total number of data bytes  
i-th data byte (i = 0 to N – 1)  
D
G
i
16 bit characteristic polynomial = 1010000000000001 (binary)  
with MSbit dropped and bit order reversed  
shr (x)  
right shift operator (the LSbit of x is shifted into a carry flag, a '0' is  
shifted into the MSbit of x, all other bits are shifted right one  
location)  
The CRC algorithm is shown below:  
1. FFFF (hex) --> A  
2. 0 --> i  
3. 0 --> j  
4. D (+) A  
--> A  
low  
i
low  
5. j + 1 --> j  
6. shr (A)  
7. Is there a carry? No: go to step 8.  
Yes: G (+) A --> A and continue.  
8. Is j = 8?  
9. i + 1 --> i  
10.Is i = N?  
11.A --> CRC  
No: go to 5.; Yes: continue.  
No: go to 3.; Yes: continue.  
Timing  
Data packet synchronization is maintained by timing constraints. The receiving  
device must measure the time between the reception of characters. If three and one  
half character times elapse without a new character or completion of the packet,  
then the communication link must be reset (i.e. all slaves start listening for a new  
transmission from the master). Thus at 9600 baud a delay of greater than 3.5 × 1 /  
9600 × 10 = 3.65 ms will cause the communication link to be reset.  
Modbus Functions  
Supported Functions  
The following functions are supported by the 489:  
Function Codes 03 and 04: Read Setpoints and Actual Values  
Function Code 05: Execute Operation  
Function Code 06: Store Single Setpoint  
Function Code 07: Read Device Status  
Function Code 08: Loopback Test  
Function Code 16: Store Multiple Setpoints  
A detailed explanation of how the 489 implements these function codes is shown in  
the following sections.  
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489  
Modbus Functions  
Communications Guide  
Function Codes 03/04:  
Read Setpoints / Actual  
Values  
Modbus implementation: Read Input and Holding Registers  
489 Implementation: Read Setpoints and Actual Values  
For the 489 Modbus implementation, these commands are used to read any setpoint  
(‘holding registers’) or actual value (‘input registers’). Holding and input registers  
are 16-bit (two byte) values transmitted high order byte first. Thus all 489 setpoints  
and actual values are sent as two bytes. The maximum of 125 registers can be read  
in one transmission. Function codes 03 and 04 are configured to read setpoints or  
actual values interchangeably since some PLCs do not support both function codes.  
The slave response to these function codes is the slave address, function code, a  
count of the number of data bytes to follow, the data itself and the CRC. Each data  
item is sent as a two byte number with the high order byte sent first. The CRC is  
sent as a two byte number with the low order byte sent first.  
Message Format and Example:  
Request slave 11 to respond with 2 registers starting at address 0235. For this  
example, the register data in these addresses is:  
Address  
0235  
Data  
0064  
000A  
0236  
Master Transmission  
Slave Address  
Bytes  
Example  
0B  
Description  
1
1
2
2
2
message for slave 11  
read register values  
data starting at 0235h  
2 registers = 4 bytes total  
computed CRC error code  
Function Code  
03  
Data Starting Address  
Number of Setpoints  
CRC (low, high)  
02 32  
00 02  
D5 17  
Slave Response  
Slave Address  
Bytes  
Example  
0B  
Description  
1
1
1
2
2
2
message from slave 11  
read register values  
Function Code  
03  
Byte Count  
04  
2 registers = 4 bytes total  
value in address 0235h  
value in address 0236h  
computed CRC error code  
Data #1 (high, low)  
Data #2 (high, low)  
CRC (low, high)  
00 64  
00 0A  
EB 91  
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489  
Modbus Functions  
Communications Guide  
Function Code 05:  
Execute Operation  
Modbus Implementation: Force Single Coil  
489 Implementation: Execute Operation  
This function code allows the master to request specific 489 command operations.  
The command numbers listed in the Commands area of the memory map  
correspond to operation code for function code 05. The operation commands can  
also be initiated by writing to the Commands area of the memory map using  
Supported Operations:Reset 489 (operation code 1); Generator Start (operation  
code 2);  
Generator Stop (operation code 3); Waveform Trigger (operation code 4)  
Message Format and Example:  
Reset 489 (operation code 1).  
Master Transmission  
Slave Address  
Bytes  
Example  
0B  
Description  
1
1
2
2
2
message for slave 11  
execute operation  
Function Code  
05  
Operation Code  
Code Value  
00 01  
FF 00  
DD 50  
reset command (op code 1)  
perform function  
CRC (low, high)  
computed CRC error code  
Slave Response  
Slave Address  
Function Code  
Operation Code  
Code Value  
Bytes  
Example  
0B  
Description  
1
1
2
2
2
message from slave 11  
execute operation  
05  
00 01  
FF 00  
DD 50  
reset command (op code 1)  
perform function  
CRC (low, high)  
computed CRC error code  
Function Code 06: Store  
Single Setpoint  
Modbus Implementation: Preset Single Register  
489 Implementation: Store Single Setpoint  
This command allows the master to store a single setpoint into the 489 memory.  
The slave response to this function code is to echo the entire master transmission.  
Message Format and Example:  
Request slave 11 to store the value 01F4 in Setpoint address 1180. After the  
transmission in this example is complete, Setpoints address 1180 will contain the  
value 01F4.  
Master Transmission  
Slave Address  
Bytes  
Example  
0B  
Description  
1
1
2
2
2
message for slave 11  
store single setpoint  
setpoint address 1180h  
data for address 1180h  
computed CRC error code  
Function Code  
06  
Data Starting Address  
Data  
11 80  
01 F4  
8D A3  
CRC (low, high)  
Slave Response  
Slave Address  
Function Code  
Data Starting Address  
Data  
Bytes  
Example  
0B  
Description  
1
1
2
2
2
message from slave 11  
store single setpoint  
setpoint address 1180h  
data for address 1180h  
computed CRC error code  
06  
11 80  
01 F4  
8D A3  
CRC (low, high)  
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489  
Modbus Functions  
Communications Guide  
Function Code 07: Read  
Device Status  
Modbus Implementation: Read Exception Status  
489 Implementation: Read Device Status  
This function reads the selected device status. A short message length allows for  
rapid reading of status. The returned status byte has individual bits set to 1 or 0  
depending on the slave device status. The 489 general status byte is shown below:  
BIT  
B0  
B1  
B2  
B3  
DESCRIPTION  
BIT  
B4  
B5  
B6  
B7  
DESCRIPTION  
1 TRIP relay operated = 1  
2 AUXILIARY relay operated = 1  
3 AUXILIARY relay operated = 1  
4 AUXILIARY relay operated = 1  
5 ALARM relay operated = 1  
6 SERVICE relay operated = 1  
Stopped = 1  
Running = 1  
Note that if status is neither stopped or running, the generator is starting.  
Message Format and Example:  
Request status from slave 11.  
Master Transmission  
Slave Address  
Bytes  
Example  
0B  
Description  
1
1
2
message for slave 11  
read device status  
computed CRC error code  
Function Code  
07  
CRC (low, high)  
47 42  
Slave Response  
Slave Address  
Function Code  
Device Status  
CRC (low, high)  
Bytes  
Example  
0B  
Description  
1
1
1
2
message from slave 11  
read device status  
status = 01011001b  
computed CRC error code  
07  
59  
C2 08  
Function Code 08:  
Loopback Test  
Modbus Implementation: Loopback Test  
489 Implementation: Loopback Test  
This function is used to test the integrity of the communication link. The 489 will  
echo the request.  
Message Format and Example:  
Loopback test from slave 11.  
Master Transmission  
Slave Address  
Function Code  
Diagnostic Code  
Data  
Bytes  
Example  
0B  
Description  
1
1
2
2
2
message for slave 11  
loopback test  
08  
00 00  
00 00  
E0 A1  
must be 0000h  
must be 0000h  
CRC (low, high)  
computed CRC error code  
Slave Response  
Slave Address  
Function Code  
Diagnostic Code  
Data  
Bytes  
Example  
0B  
Description  
1
1
2
2
2
message from slave 11  
loopback test  
08  
00 00  
00 00  
E0 A1  
must be 0000h  
must be 0000h  
CRC (low, high)  
computed CRC error code  
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489  
Modbus Functions  
Communications Guide  
Function Code 16: Store  
Multiple Setpoints  
Modbus Implementation: Preset Multiple Registers  
489 Implementation: Store Multiple Setpoints  
This function code allows multiple Setpoints to be stored into the 489 memory.  
Modbus “registers” are 16-bit (two byte) values transmitted high order byte first.  
Thus all 489 setpoints are sent as two bytes. The maximum number of Setpoints  
that can be stored in one transmission is dependent on the slave device. Modbus  
allows up to a maximum of 60 holding registers to be stored. The 489 response to  
this function code is to echo the slave address, function code, starting address, the  
number of Setpoints stored, and the CRC.  
Message Format and Example:  
Request slave 11 to store the value 01F4 to Setpoint address 1180 and the value  
0001 to setpoint address 1181. After the transmission in this example is complete,  
489 slave 11 will have the following setpoints information stored:  
Address  
1180  
Data  
01F4  
0001  
1181  
Master Transmission  
Slave Address  
Function Code  
Data Starting Address  
Number of Setpoints  
Byte Count  
Bytes  
Example  
0B  
Description  
1
1
2
2
1
2
2
2
message for slave 11  
store setpoints  
10  
11 80  
00 02  
04  
data starting at 1180h  
2 setpoints = 4 bytes total  
2 registers = 4 bytes  
data for address 1180h  
data for address 1181h  
computed CRC error code  
Data 1  
01 F4  
00 01  
9B 89  
Data 2  
CRC (low, high)  
Slave Response  
Slave Address  
Bytes  
Example  
0B  
Description  
1
1
2
2
2
message from slave 11  
store multiple setpoints  
data starting at 1180h  
2 setpoints (4 bytes total)  
computed CRC error code  
Function Code  
10  
Data Starting Address  
Number of Setpoints  
CRC (low, high)  
11 80  
00 02  
45 B6  
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489  
Modbus Functions  
Communications Guide  
Function Code 16:  
Performing Commands  
Some PLCs may not support execution of commands using function code 5 but do  
support storing multiple setpoints using function code 16. To perform this operation  
using function code 16 (10h), a certain sequence of commands must be written at  
the same time to the 489. The sequence consists of: Command Function register,  
Command operation register and Command Data (if required). The Command  
Function register must be written with the value of 5 indicating an execute operation  
is requested. The Command Operation register must then be written with a valid  
command operation number from the list of commands shown in the memory map.  
The Command Data registers must be written with valid data if the command  
operation requires data. The selected command will execute immediately upon  
receipt of a valid transmission.  
Message Format and Example:  
Perform a 489 RESET (operation code 1).  
Master Transmission  
Slave Address  
Bytes  
Example  
0B  
Description  
1
1
2
2
1
2
2
2
message for slave 11  
store setpoints  
Function Code  
10  
Data Starting Address  
Number of Setpoints  
Byte Count  
00 80  
00 02  
04  
setpoint address 0080h  
2 setpoints = 4 bytes total  
2 registers = 4 bytes  
data for address 0080h  
data for address 0081h  
computed CRC error code  
Command Function  
Command Function  
CRC (low, high)  
00 05  
00 01  
0B D6  
Slave Response  
Slave Address  
Bytes  
Example  
0B  
Description  
1
1
2
2
2
message from slave 11  
store multiple setpoints  
setpoint address 0080h  
2 setpoints (4 bytes total)  
computed CRC error code  
Function Code  
10  
Data Starting Address  
Number of Setpoints  
CRC (low, high)  
00 80  
00 02  
40 8A  
Error Responses  
When a 489 detects an error other than a CRC error, a response will be sent to the  
master. The MSbit of the Function Code byte will be set to 1 (i.e. the function code  
sent from the slave will be equal to the function code sent from the master plus  
128). The following byte will be an exception code indicating the type of error that  
occurred.  
Transmissions received from the master with CRC errors will be ignored by the 489.  
The slave response to an error (other than CRC error) will be:  
SLAVE ADDRESS: 1 byte  
FUNCTION CODE: 1 byte (with MSbit set to 1)  
EXCEPTION CODE: 1 byte  
CRC: 2 bytes  
The 489 implements the following exception response codes.  
01: ILLEGAL FUNCTION  
The function code transmitted is not one of the functions supported by the 489.  
02: ILLEGAL DATA ADDRESS  
The address referenced in the data field transmitted by the master is not an  
allowable address for the 489.  
03: ILLEGAL DATA VALUE  
The value referenced in the data field transmitted by the master is not within range  
for the selected data address.  
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489  
Modbus Memory Map  
Communications Guide  
Modbus Memory Map  
Memory Map  
Information  
The data stored in the 489 is grouped as Setpoints and Actual Values. Setpoints can  
be read and written by a master computer. Actual Values are read only. All Setpoints  
and Actual Values are stored as two byte values. That is, each register address is  
the address of a two-byte value. Addresses are listed in hexadecimal. Data values  
(Setpoint ranges, increments, and factory values) are in decimal.  
Many Modbus communications drivers add 40001d to the actual address of the  
register addresses. For example: if address 0h was to be read, 40001d would be the  
address required by the Modbus communications driver; if address 320h (800d) was  
to be read, 40801d would be the address required by the Modbus communications  
driver.  
NOTE  
User-Definable  
Memory Map Area  
The 489 contains a User Definable area in the memory map. This area allows  
remapping of the addresses of all Actual Values and Setpoints registers. The User  
Definable area has two sections:  
1. A Register Index area (memory map addresses 0180h to 01FCh) that contains  
125 Actual Values or Setpoints register addresses.  
2. A Register area (memory map addresses 0100h to 017Ch) that contains the  
data at the addresses in the Register Index.  
Register data that is separated in the rest of the memory map may be remapped to  
adjacent register addresses in the User Definable Registers area. This is  
accomplished by writing to register addresses in the User Definable Register Index  
area. This allows for improved throughput of data and can eliminate the need for  
multiple read command sequences.  
For example, if the values of Average Phase Current (register addresses 0412h and  
0413h) and Hottest Stator RTD Temperature (register address 04A0h) are required  
to be read from an 489, their addresses may be remapped as follows:  
1. Write 0412h to address 0180h (User Definable Register Index 0000) using func-  
tion code 06 or 16.  
2. Write 0413h to address 0181h (User Definable Register Index 0001) using func-  
tion code 06 or 16.  
(Average Phase Current is a double register number)  
3. Write 04A0h to address 0182h (User Definable Register Index 0001) using func-  
tion code 06 or 16.  
A read (function code 03 or 04) of registers 0100h (User Definable Register 0000)  
and 0101h (User Definable Register 0001) will return the Average Phase Current  
and register 0102h (User Definable Register 0002) will return the Hottest Stator  
RTD Temperature.  
Event Recorder  
The 489 event recorder data starts at address 3000h. Address 3003h is the ID  
number of the event of interest (a high number representing the latest event and a  
low number representing the oldest event). Event numbers start at zero each time  
the event record is cleared, and count upwards. To retrieve event 1, write ‘1’ to the  
Event Record Selector (3003h) and read the data from 3004h to 30E7h. To retrieve  
event 2, write ‘2’ to the Event Record Selector (3003h) and read the data from  
3004h to 30E7h. All 40 events may be retrieved in this manner. The time and date  
stamp of each event may be used to ensure that all events have been retrieved in  
order without new events corrupting the sequence of events (event 0 should be less  
recent than event 1, event 1 should be less recent than event 2, etc.).  
If more than 40 events have been recorded since the last time the event record was  
cleared, the earliest events will not be accessible. For example, if 100 events have  
been recorded (i.e., the total events since last clear in register 3002h is 100),  
events 60 through 99 may be retrieved. Writing any other value to the event record  
selector (register 3003h) will result in an “invalid data value” error.  
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489  
Modbus Memory Map  
Communications Guide  
Each communications port can individually select the ID number of the event of  
interest by writing address 3003h. This way the front port, rear port and auxiliary  
port can read different events from the event recorder simultaneously.  
Waveform Capture  
The 489 stores up to 64 cycles of A/D samples in a waveform capture buffer each  
time a trip occurs. The waveform capture buffer is time and date stamped and may  
therefore be correlated to a trip in the event record. To access the waveform capture  
memory, select the channel of interest by writing the number to the Waveform  
Capture Channel Selector (30F5h). Then read the waveform capture data from  
address 3100h-31BFh, and read the date, time and line frequency from addresses  
30F0h-30F4h.  
Each communications port can individually select a Waveform Channel Selector of  
interest by writing address 30F5h. This way the front port, rear port and auxiliary  
port can read different Waveform Channels simultaneously.  
The channel selector must be one of the following values:  
VALUE  
SELECTED A/D SAMPLES  
Phase A line current  
Phase B line current  
Phase C line current  
SCALE FACTOR  
0
1
2
3
4
5
6
500 counts equals 1 × CT primary  
500 counts equals 1 × CT primary  
500 counts equals 1 × CT primary  
Neutral-End phase A current 500 counts equals 1 × CT primary  
Neutral-End phase B current 500 counts equals 1 × CT primary  
Neutral-End phase C current 500 counts equals 1 × CT primary  
Ground current  
500 counts equals 1 × CT primary  
or 1A for 50:0.025  
7
8
9
Phase A to neutral voltage  
Phase B to neutral voltage  
Phase C to neutral voltage  
2500 counts equals 120 secondary volts  
2500 counts equals 120 secondary volts  
2500 counts equals 120 secondary volts  
Dual Setpoints  
Each communications port can individually select an Edit Setpoint Group of interest  
by writing address 1342h. This way the front port, rear port and auxiliary port can  
read and alter different setpoints simultaneously.  
Passcode Operation  
Each communications port can individually set the Passcode Access by writing  
address 88h with the correct Passcode. This way the front port, rear port and  
auxiliary port have individual access to the setpoints. Reading address 0203h,  
COMMUNICATIONS SETPOINT ACCESS register, provides the user with the current state  
of access for the given port. A value of 1 read from this register indicates that the  
user has full access rights to changing setpoints from the given port.  
10  
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489  
Modbus Memory Map  
Communications Guide  
489 Memory Map  
The 489 memory map is shown in the following table.  
Table 1: 489 Memory Map (Sheet 1 of 29)  
ADDR NAME  
PRODUCT ID  
RANGE  
STEP  
UNITS  
FORMAT  
DEFAULT  
0000  
0001  
0002  
0003  
0010  
0011  
GE Multilin Product Device Code  
Product Hardware Revision  
Product Software Revision  
Product Modification Number  
Boot Program Revision  
N/A  
1 to 26  
N/A  
N/A  
1
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
F1  
F15  
F16  
F1  
32  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
1
0 to 999  
N/A  
N/A  
1
F16  
F1  
Boot Program Modification Number  
0 to 999  
MODEL ID  
0040  
0050  
0060  
Order Code  
0 to 16  
12  
1
1
1
N/A  
N/A  
N/A  
F22  
F22  
F22  
N/A  
N/A  
N/A  
489 Revision  
489 Boot Revision  
12  
COMMANDS  
0080  
0081  
0088  
00F0  
00F2  
Command Function Code (always 5)  
5
0 to 65535  
0 to 99999999  
N/A  
N/A  
1
N/A  
N/A  
N/A  
N/A  
N/A  
F1  
F1  
N/A  
N/A  
0
Command Operation Code  
Communications Port Passcode  
Time (Broadcast)  
1
F12  
F24  
F18  
N/A  
N/A  
N/A  
N/A  
Date (Broadcast)  
N/A  
USER_MAP / USER MAP VALUES  
0100  
017C  
User Map Value #1 of 125...  
User Map Value #125 of 125  
5
5
N/A  
N/A  
N/A  
N/A  
F1  
F1  
N/A  
N/A  
USER_MAP / USER MAP ADDRESSES  
0180  
01FC  
User Map Address #1 of 125...  
User Map Address #125 of 125  
0 to 3FFF  
0 to 3FFF  
1
1
hex  
hex  
F1  
F1  
0
0
STATUS / GENERATOR STATUS  
0200  
0201  
0202  
0203  
Generator Status  
0 to 4  
1
1
%
F133  
F1  
1
0
Generator Thermal Capacity Used  
Estimated Trip Time On Overload  
Communications Setpoint Access  
0 to 100  
1
0 to 65535  
1
s
F12  
F126  
–1  
N/A  
0 to 1  
N/A  
N/A  
STATUS / SYSTEM STATUS  
0210  
0211  
0212  
General Status  
0 to 65535  
0 to 63  
1
1
1
N/A  
N/A  
N/A  
F140  
F141  
F118  
0
0
0
Output Relay Status  
Active Setpoint Group  
0 to 1  
STATUS / LAST TRIP DATA  
0220  
0221  
0223  
0225  
0226  
0228  
022A  
022C  
022E  
0230  
0232  
0233  
0235  
0236  
0237  
0238  
023B  
Cause of Last Trip  
0 to 139  
N/A  
1
N/A  
N/A  
1
F134  
F19  
F18  
F1  
0
N/A  
N/A  
0
Time of Last Trip  
N/A  
Date of Last Trip  
N/A  
N/A  
Tachometer Pretrip  
0 to 7200  
RPM  
Amps  
Amps  
Amps  
Amps  
Amps  
Amps  
% FLA  
A
Phase A Pre-Trip Current  
Phase B Pre-Trip Current  
Phase C Pre-Trip Current  
Phase A Pre-Trip Differential Current  
Phase B Pre-Trip Differential Current  
Phase C Pre-Trip Differential Current  
Negative Sequence Current Pretrip  
Ground Current Pretrip  
Pre-Trip A-B Voltage  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 2000  
1
F12  
F12  
F12  
F12  
F12  
F12  
F1  
0
1
0
1
0
1
0
1
0
1
0
1
0
0 to 20000000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 12000  
–2000000 to 2000000  
1
F14  
F1  
0
1
Volts  
Volts  
Volts  
Hz  
0
Pre-Trip B-C Voltage  
1
F1  
0
Pre-Trip C-A Voltage  
1
F1  
0
Frequency Pretrip  
1
F3  
0
Real Power (MW) Pretrip  
1
MW  
F13  
0
1, 2, 3 See Table footnotes on page 39  
11  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 2 of 29)  
ADDR NAME  
RANGE  
–2000000 to 2000000  
0 to 2000000  
1 to 12  
STEP  
1
UNITS  
Mvar  
MVA  
FORMAT  
F13  
F13  
F1  
DEFAULT  
023D Reactive Power Mvar Pretrip  
0
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
023F  
0241  
0242  
0243  
0244  
0245  
0246  
0247  
0248  
0249  
024B  
Apparent Power MVA Pretrip  
Last Trip Data Stator RTD  
1
1
Hottest Stator RTD Temperature  
Last Trip Data Bearing RTD  
Hottest Bearing RTD Temperature  
Last Trip Data Other RTD  
–50 to 250  
1
°C  
F4  
1 to 12  
1
F1  
–50 to 250  
1
°C  
F4  
1 to 12  
1
F1  
Hottest Other RTD Temperature  
Last Trip Data Ambient RTD  
Hottest Ambient RTD Temperature  
Analog Input 1 Pretrip  
–50 to 250  
1
°C  
F4  
1 to 12  
1
F1  
–50 to 250  
1
°C  
F4  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50 to 250  
1
Units  
Units  
Units  
Units  
°F  
F12  
F12  
F12  
F12  
F4  
Analog Input 2 Pretrip  
1
024D Analog Input 3 Pretrip  
1
024F  
025C  
Analog Input 4 Pretrip  
1
Hottest Stator RTD Temperature  
1
025D Hottest Bearing RTD Temperature  
–50 to 250  
1
°F  
F4  
025E  
025F  
0260  
0262  
0264  
0265  
Hottest Other RTD Temperature  
Hottest Ambient RTD Temperature  
Neutral Voltage Fundamental Pretrip  
Neutral Voltage 3rd Harmonic Pretrip  
Pre-Trip Vab/Iab  
–50 to 250  
1
°F  
F4  
–50 to 250  
1
°F  
F4  
0 to 250000  
0 to 250000  
0 to 65535  
1
Volts  
Volts  
ohms s  
°
F10  
F10  
F2  
1
1
Pre-Trip Vab/Iab Angle  
0 to 359  
1
F1  
STATUS / TRIP PICKUPS  
0280  
0281  
0282  
0283  
0284  
0285  
0286  
0287  
0288  
0289  
028A  
028B  
028C  
Input A Pickup  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Input B Pickup  
Input C Pickup  
Input D Pickup  
Input E Pickup  
Input F Pickup  
Input G Pickup  
Sequential Trip Pickup  
Field-Breaker Discrepancy Pickup  
Tachometer Pickup  
Offline Overcurrent Pickup  
Inadvertent Energization Pickup  
Phase Overcurrent Pickup  
028D Negative Sequence Overcurrent Pickup  
028E  
028F  
0290  
0291  
0292  
0293  
0294  
0295  
0296  
0297  
0298  
0299  
029A  
029B  
029C  
Ground Overcurrent Pickup  
Phase Differential Pickup  
Undervoltage Pickup  
Overvoltage Pickup  
Volts/Hertz Pickup  
Phase Reversal Pickup  
Underfrequency Pickup  
Overfrequency Pickup  
Neutral Overvoltage (Fundamental) Pickup  
Neutral Undervoltage (3rd Harmonic) Pickup  
Reactive Power Pickup  
Reverse Power Pickup  
Low Forward Power Pickup  
Thermal Model Pickup  
RTD #1 Pickup  
029D RTD #2 Pickup  
1, 2, 3 See Table footnotes on page 39  
12  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 3 of 29)  
ADDR NAME  
RANGE  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
STEP  
1
UNITS  
FORMAT  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
DEFAULT  
029E  
029F  
02A0  
02A1  
02A2  
02A3  
02A4  
02A5  
02A6  
02A7  
02A8  
02A9  
RTD #3 Pickup  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
RTD #4 Pickup  
1
RTD #5 Pickup  
1
RTD #6 Pickup  
1
RTD #7 Pickup  
1
RTD #8 Pickup  
1
RTD #9 Pickup  
1
RTD #10 Pickup  
RTD #11 Pickup  
RTD #12 Pickup  
Analog Input 1 Pickup  
Analog Input 2 Pickup  
1
1
1
1
1
02AA Analog Input 3 Pickup  
02AB Analog Input 4 Pickup  
02AC Loss Of Excitation 1 Pickup  
02AD Loss Of Excitation 2 Pickup  
1
1
1
1
02AE  
02AF  
02B0  
02B1  
Ground Directional Pickup  
High-Set Phase Overcurrent Pickup  
Distance Zone 1 Pickup  
1
1
1
Distance Zone 2 Pickup  
1
STATUS / ALARM PICKUPS  
0300  
0301  
0302  
0303  
0304  
0305  
0306  
0307  
0308  
0309  
030A  
030B  
030C  
Input A Pickup  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Input B Pickup  
Input C Pickup  
Input D Pickup  
Input E Pickup  
Input F Pickup  
Input G Pickup  
Tachometer Pickup  
Overcurrent Pickup  
Negative Sequence Overcurrent Pickup  
Ground Overcurrent Pickup  
Undervoltage Pickup  
Overvoltage Pickup  
030D Volts/Hertz Pickup  
030E  
030F  
0310  
0311  
0312  
0313  
0314  
0315  
0316  
0317  
0318  
0319  
031A  
031B  
031C  
Underfrequency Pickup  
Overfrequency Pickup  
Neutral Overvoltage (Fundamental) Pickup  
Neutral Undervoltage (3rd harmonic) Pickup  
Reactive Power Pickup  
Reverse Power Pickup  
Low Forward Power Pickup  
RTD #1 Pickup  
RTD #2 Pickup  
RTD #3 Pickup  
RTD #4 Pickup  
RTD #5 Pickup  
RTD #6 Pickup  
RTD #7 Pickup  
RTD #8 Pickup  
031D RTD #9 Pickup  
031E  
031F  
RTD #10 Pickup  
RTD #11 Pickup  
1, 2, 3 See Table footnotes on page 39  
13  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 4 of 29)  
ADDR NAME  
RANGE  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
0 to 4  
STEP  
1
UNITS  
FORMAT  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
F123  
DEFAULT  
0320  
0321  
0322  
0323  
0324  
0325  
0326  
0327  
0328  
0329  
032A  
032B  
032C  
RTD #12 Pickup  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Open Sensor Pickup  
Short/Low Temperature Pickup  
Thermal Model Pickup  
Trip Counter Pickup  
1
1
1
1
Breaker Failure Pickup  
Trip Coil Monitor Pickup  
VT Fuse Failure Pickup  
Current Demand Pickup  
MW Demand Pickup  
Mvar Demand Pickup  
MVA Demand Pickup  
Analog Input 1 Pickup  
1
1
1
1
1
1
1
1
032D Analog Input 2 Pickup  
1
032E  
032F  
0330  
0331  
0332  
0333  
0334  
0335  
0336  
0337  
Analog Input 3 Pickup  
1
Analog Input 4 Pickup  
1
Not Programmed Pickup  
Simulation Mode Pickup  
Output Relays Forced Pickup  
Analog Output Forced Pickup  
Test Switch Shorted Pickup  
Ground Directional Pickup  
IRIG-B Alarm Pickup  
1
1
1
1
1
1
1
Generator Running Hour Pickup  
1
STATUS / DIGITAL INPUTS  
0380  
0381  
0382  
0383  
0384  
0385  
0386  
0387  
0388  
0389  
Access Switch State  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
1
1
1
1
1
1
1
1
1
1
F207  
F207  
F207  
F207  
F207  
F207  
F207  
F207  
F207  
F132  
0
0
0
0
0
0
0
0
0
0
Breaker Status Switch State  
Assignable Digital Input 1 State  
Assignable Digital Input 2 State  
Assignable Digital Input 3 State  
Assignable Digital Input 4 State  
Assignable Digital Input 5 State  
Assignable Digital Input 6 State  
Assignable Digital Input 7 State  
Trip Coil Supervision  
STATUS / REAL TIME CLOCK  
03FC  
03FE  
Date (Read-only)  
Time (Read-only)  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
F18  
F19  
N/A  
N/A  
METERING DATA / CURRENT METERING  
0400  
0402  
0404  
0406  
0408  
040A  
040C  
040E  
0410  
0412  
0414  
0415  
0416  
0420  
Phase A Output Current  
Phase B Output Current  
Phase C Output Current  
Phase A Neutral-Side Current  
Phase B Neutral-Side Current  
Phase C Neutral-Side Current  
Phase A Differential Current  
Phase B Differential Current  
Phase C Differential Current  
Average Phase Current  
Generator Load  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 2000  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Amps  
Amps  
Amps  
Amps  
Amps  
Amps  
Amps  
Amps  
Amps  
Amps  
% FLA  
% FLA  
Amps  
°
F12  
F12  
F12  
F12  
F12  
F12  
F12  
F12  
F12  
F12  
F1  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Negative Sequence Current  
Ground Current  
0 to 2000  
F1  
0 to 10000  
0 to 359  
F14  
F1  
Phase A Current Angle  
1, 2, 3 See Table footnotes on page 39  
14  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 5 of 29)  
ADDR NAME  
RANGE  
0 to 359  
0 to 359  
0 to 359  
0 to 359  
0 to 359  
0 to 359  
0 to 359  
0 to 359  
0 to 359  
STEP  
UNITS  
FORMAT  
DEFAULT  
0421  
0422  
0423  
0424  
0425  
0426  
0427  
0428  
0429  
Phase B Current Angle  
1
1
1
1
1
1
1
1
1
°
°
°
°
°
°
°
°
°
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
0
0
0
0
0
0
0
0
0
Phase C Current Angle  
Phase A Neutral-Side Angle  
Phase B Neutral-Side Angle  
Phase C Neutral-Side Angle  
Phase A Differential Angle  
Phase B Differential Angle  
Phase C Differential Angle  
Ground Current Angle  
METERING DATA / VOLTAGE METERING  
0440  
0441  
0442  
0443  
0444  
0445  
0446  
0447  
0448  
0449  
044A  
044C  
044E  
0450  
0451  
0460  
0461  
0462  
0463  
0464  
0465  
0466  
Phase A-B Voltage  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 200  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Volts  
Volts  
Volts  
Volts  
Volts  
Volts  
Volts  
Volts  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F3  
F3  
F10  
F10  
F10  
F2  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Phase B-C Voltage  
Phase C-A Voltage  
Average Line Voltage  
Phase A-N Voltage  
Phase B-N Voltage  
Phase C-N Voltage  
Average Phase Voltage  
Per Unit Measurement Of V/Hz  
Frequency  
2
500 to 9000  
0 to 250000  
0 to 250000  
0 to 250000  
0 to 65535  
0 to 359  
Hz  
Neutral Voltage Fund  
Neutral Voltage 3rd Harmonic  
Volts  
Volts  
Volts  
ohms  
°
Neutral Voltage Vp3 3rd Harmonic  
Vab/Iab  
Vab/Iab Angle  
Line A-B Voltage Angle  
Line B-C Voltage Angle  
Line C-A Voltage Angle  
Phase A-N Voltage Angle  
Phase B-N Voltage Angle  
Phase C-N Voltage Angle  
Neutral Voltage Angle  
0 to 359  
°
0 to 359  
°
0 to 359  
°
0 to 359  
°
0 to 359  
°
0 to 359  
°
0 to 359  
METERING DATA / POWER METERING  
0480  
0481  
0483  
0485  
0487  
0489  
048B  
Power Factor  
–100 to 100  
1
1
1
1
1
1
1
F6  
0
0
0
0
0
0
0
Real Power  
–2000000 to 2000000  
–2000000 to 2000000  
–2000000 to 200000  
0 to 4000000000  
MW  
F13  
F13  
F13  
F13  
F13  
F13  
Reactive Power  
Apparent Power  
Positive Watthours  
Positive Varhours  
Negative Varhours  
Mvar  
MVA  
MWh  
Mvarh  
Mvarh  
0 to 4000000000  
0 to 4000000000  
METERING DATA / TEMPERATURE  
04A0  
04A1  
04A2  
04A3  
04A4  
04A5  
04A6  
04A7  
04A8  
04A9  
Hottest Stator RTD  
1 to 12  
1
1
1
1
1
1
1
1
1
1
1
1
F1  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
0
Hottest Stator RTD Temperature  
RTD #1 Temperature  
RTD #2 Temperature  
RTD #3 Temperature  
RTD #4 Temperature  
RTD #5 Temperature  
RTD #6 Temperature  
RTD #7 Temperature  
RTD #8 Temperature  
–52 to 250  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
°C  
°C  
°C  
°C  
°C  
°C  
°C  
°C  
°C  
°C  
°C  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
04AA RTD #9 Temperature  
04AB RTD #10 Temperature  
1, 2, 3 See Table footnotes on page 39  
15  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 6 of 29)  
ADDR NAME  
RANGE  
STEP  
UNITS  
°C  
°C  
°F  
FORMAT  
F4  
DEFAULT  
–52  
04AC RTD #11 Temperature  
04AD RTD #12 Temperature  
–52 to 251  
–52 to 251  
–52 to 250  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
F4  
–52  
04C0  
04C1  
04C2  
04C3  
04C4  
04C5  
04C6  
04C7  
04C8  
04C9  
Hottest Stator RTD Temperature  
RTD #1 Temperature  
RTD #2 Temperature  
RTD #3 Temperature  
RTD #4 Temperature  
RTD #5 Temperature  
RTD #6 Temperature  
RTD #7 Temperature  
RTD #8 Temperature  
RTD #9 Temperature  
F4  
–52  
°F  
F4  
–52  
°F  
F4  
–52  
°F  
F4  
–52  
°F  
F4  
–52  
°F  
F4  
–52  
°F  
F4  
–52  
°F  
F4  
–52  
°F  
F4  
–52  
°F  
F4  
–52  
04CA RTD #10 Temperature  
°F  
F4  
–52  
04CB RTD #11 Temperature  
°F  
F4  
–52  
04CC RTD #12 Temperature  
°F  
F4  
–52  
METERING DATA / DEMAND METERING  
04E0  
04E2  
04E4  
04E6  
04E8  
04EA  
04EC  
04EE  
Current Demand  
MW Demand  
0 to 1000000  
0 to 2000000  
0 to 2000000  
0 to 2000000  
0 to 1000000  
0 to 2000000  
0 to 2000000  
0 to 2000000  
1
1
1
1
1
1
1
1
Amps  
MW  
F12  
F13  
F13  
F13  
F12  
F13  
F13  
F13  
0
0
0
0
0
0
0
0
Mvar Demand  
Mvar  
MVA  
Amps  
MW  
MVA Demand  
Peak Current Demand  
Peak MW Demand  
Peak Mvar Demand  
Peak MVA Demand  
Mvar  
MVA  
METERING DATA / ANALOG INPUTS  
0500  
0502  
0504  
0506  
Analog Input 1  
Analog Input 2  
Analog Input 3  
Analog Input 4  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
1
1
1
1
Units  
Units  
Units  
Units  
F12  
F12  
F12  
F12  
0
0
0
0
METERING DATA / SPEED  
0520 Tachometer  
LEARNED DATA / PARAMETER AVERAGES  
0 to 7200  
1
RPM  
F1  
0
0600  
0601  
0602  
0603  
0604  
Average Generator Load  
Average Negative Sequence Current  
Average Phase-Phase Voltage  
Reserved  
0 to 2000  
1
1
1
%FLA  
F1  
F1  
F1  
0
0
0
0 to 2000  
%FLA  
0 to 50000  
V
Reserved  
LEARNED DATA / RTD MAXIMUMS  
0620  
0621  
0622  
0623  
0624  
0625  
0626  
0627  
0628  
0629  
062A  
062B  
0640  
0641  
0642  
RTD #1 Maximum Temperature (Celsius)  
RTD #2 Maximum Temperature (Celsius)  
RTD #3 Maximum Temperature (Celsius)  
RTD #4 Maximum Temperature (Celsius)  
RTD #5 Maximum Temperature (Celsius)  
RTD #6 Maximum Temperature (Celsius)  
RTD #7 Maximum Temperature (Celsius)  
RTD #8 Maximum Temperature (Celsius)  
RTD #9 Maximum Temperature (Celsius)  
RTD #10 Maximum Temperature (Celsius)  
RTD #11 Maximum Temperature (Celsius)  
RTD #12 Maximum Temperature (Celsius)  
RTD #1 Maximum Temperature (Fahrenheit)  
RTD #2 Maximum Temperature (Fahrenheit)  
RTD #3 Maximum Temperature (Fahrenheit)  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
°C  
°C  
°C  
°C  
°C  
°C  
°C  
°C  
°C  
°C  
°C  
°C  
°F  
°F  
°F  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
–52  
1, 2, 3 See Table footnotes on page 39  
16  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 7 of 29)  
ADDR NAME  
RANGE  
STEP  
UNITS  
°F  
FORMAT  
DEFAULT  
–52  
0643  
0644  
0645  
0646  
0647  
0648  
0649  
064A  
064B  
RTD #4 Maximum Temperature (Fahrenheit)  
RTD #5 Maximum Temperature (Fahrenheit)  
RTD #6 Maximum Temperature (Fahrenheit)  
RTD #7 Maximum Temperature (Fahrenheit)  
RTD #8 Maximum Temperature (Fahrenheit)  
RTD #9 Maximum Temperature (Fahrenheit)  
RTD #10 Maximum Temperature (Fahrenheit)  
RTD #11 Maximum Temperature (Fahrenheit)  
RTD #12 Maximum Temperature (Fahrenheit)  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
–52 to 251  
1
1
1
1
1
1
1
1
1
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
°F  
–52  
°F  
–52  
°F  
–52  
°F  
–52  
°F  
–52  
°F  
–52  
°F  
–52  
°F  
–52  
LEARNED DATA / ANALOG IN MIN/MAX  
0700  
0702  
0704  
0706  
0708  
070A  
070C  
070E  
Analog Input 1 Minimum  
Analog Input 1 Maximum  
Analog Input 2 Minimum  
Analog Input 2 Maximum  
Analog Input 3 Minimum  
Analog Input 3 Maximum  
Analog Input 4 Minimum  
Analog Input 4 Maximum  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
1
1
1
1
1
1
1
1
Units  
Units  
Units  
Units  
Units  
Units  
Units  
Units  
F12  
F12  
F12  
F12  
F12  
F12  
F12  
F12  
0
0
0
0
0
0
0
0
MAINTENANCE / TRIP COUNTERS  
077F  
0781  
0782  
0783  
0784  
0785  
0786  
0787  
0788  
0789  
078A  
078B  
078C  
Trip Counters Last Cleared (Date)  
Total Number of Trips  
N/A  
N/A  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
N/A  
F18  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
N/A  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
Digital Input Trips  
Sequential Trips  
Field-Breaker Discrepancy Trips  
Tachometer Trips  
Offline Overcurrent Trips  
Phase Overcurrent Trips  
Negative Sequence Overcurrent Trips  
Ground Overcurrent Trips  
Phase Differential Trips  
Undervoltage Trips  
Overvoltage Trips  
078D Volts/Hertz Trips  
078E  
078F  
0790  
0791  
0792  
0793  
0794  
0795  
0796  
0797  
0798  
0799  
079A  
079B  
079C  
Phase Reversal Trips  
Underfrequency Trips  
Overfrequency Trips  
Neutral Overvoltage (Fundamental) Trips  
Neutral Undervoltage (3rd Harmonic) Trips  
Reactive Power Trips  
Reverse Power Trips  
Low Forward Power Trips  
Stator RTD Trips  
Bearing RTD Trips  
Other RTD Trips  
Ambient RTD Trips  
Thermal Model Trips  
Inadvertent Energization Trips  
Analog Input 1 Trips  
079D Analog Input 2 Trips  
079E  
079F  
Analog Input 3 Trips  
Analog Input 4 Trips  
MAINTENANCE / GENERAL COUNTERS  
07A0 Number Of Breaker Operations  
0 to 50000  
1
F1  
0
1, 2, 3 See Table footnotes on page 39  
17  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 8 of 29)  
ADDR NAME  
RANGE  
STEP  
UNITS  
FORMAT  
DEFAULT  
07A1  
Number Of Thermal Resets  
0 to 50000  
1
F1  
0
MAINTENANCE / TRIP COUNTERS  
07A2  
07A3  
07A4  
07A5  
07A6  
07A7  
Loss Of Excitation 1 Trips  
Loss Of Excitation 2 Trips  
Ground Directional Trips  
High-Set Phase Overcurrent Trips  
Distance Zone 1 Trips  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
0 to 50000  
1
1
1
1
1
1
F1  
F1  
F1  
F1  
F1  
F1  
0
0
0
0
0
0
Distance Zone 2 Trips  
MAINTENANCE / TIMERS  
07E0 Generator Hours Online  
PRODUCT INFO. / 489 MODEL INFO.  
0 to 1000000  
1
h
F12  
0
0800  
0801  
Order Code  
0 to 65535  
1
1
N/A  
F136  
F12  
N/A  
489 Serial Number  
3000000 to 9999999  
3000000  
PRODUCT INFO. / CALIBRATION INFO.  
0810  
0812  
Original Calibration Date  
Last Calibration Date  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
F18  
F18  
N/A  
N/A  
489 SETUP / PREFERENCES  
1000  
1001  
1003  
1004  
1005  
1006  
1008  
100A  
Default Message Cycle Time  
Default Message Timeout  
Parameter Averages Calculation Period  
Temperature Display  
5 to 100  
10 to 900  
1 to 90  
5
1
s
s
F2  
F1  
20  
300  
15  
0
1
min  
F1  
0 to 1  
1
F100  
F1  
Waveform Trigger Position  
Passcode (Write Only)  
1 to 100  
0 to 99999999  
N/A  
1
%
25  
0
1
N/A  
N/A  
F12  
F12  
F1  
Encrypted Passcode (Read Only)  
Waveform Memory Buffer  
N/A  
1
N/A  
8
1 to 16  
489 SETUP / SERIAL PORTS  
1010  
1011  
1012  
1013  
1014  
1015  
1016  
1017  
Slave Address  
1 to 254  
0 to 5  
1
1
F1  
254  
4
Computer RS485 Baud Rate  
Computer RS485 Parity  
Auxiliary RS485 Baud Rate  
Auxiliary RS485 Parity  
Port Used For DNP  
F101  
F102  
F101  
F102  
F216  
F1  
0 to 2  
1
0
0 to 5  
1
4
0 to 2  
1
0
0 to 3  
1
0
DNP Slave Address  
0 to 255  
0 to 100  
1
255  
10  
DNP Turnaround Time  
10  
ms  
F1  
489 SETUP / REAL TIME CLOCK  
1030  
1032  
1034  
Date  
N/A  
N/A  
N/A  
N/A  
1
N/A  
N/A  
F18  
F19  
N/A  
N/A  
0
Time  
IRIG-B Type  
0 to 2  
F220  
489 SETUP / MESSAGE SCRATCHPAD  
1060  
1080  
10A0  
10C0  
10E0  
Scratchpad  
Scratchpad  
Scratchpad  
Scratchpad  
Scratchpad  
0 to 40  
0 to 40  
0 to 40  
0 to 40  
0 to 40  
1
1
1
1
1
F22  
F22  
F22  
F22  
F22  
_
_
_
_
_
489 SETUP / CLEAR DATA  
1130  
1131  
1132  
1133  
1134  
1135  
1136  
1137  
Clear Last Trip Data  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
1
1
1
1
1
1
1
1
F103  
F103  
F103  
F103  
F103  
F103  
F103  
F103  
0
0
0
0
0
0
0
0
Clear Mwh And Mvarh Meters  
Clear Peak Demand Data  
Clear RTD Maximums  
Clear Analog Inputs Minimums/Maximums  
Clear Trip Counters  
Clear Event Record  
Clear Generator Information  
1, 2, 3 See Table footnotes on page 39  
18  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 9 of 29)  
ADDR NAME  
RANGE  
STEP  
UNITS  
FORMAT  
DEFAULT  
1138  
Clear Breaker Information  
0 to 1  
1
F103  
0
SYSTEM SETUP / CURRENT SENSING  
1180  
1181  
1182  
Phase CT Primary  
Ground CT  
10 to 50001  
0 to 3  
1
1
1
Amps  
F1  
F104  
F1  
50001  
0
Ground CT Ratio  
10 to 10000  
: 1 / :5  
100  
SYSTEM SETUP / VOLTAGE SENSING  
11A0  
11A1  
11A2  
11A3  
VT Connection Type  
0 to 2  
100 to 30000  
100 to 24000  
0 to 1  
1
1
1
1
: 1  
: 1  
F106  
F3  
0
Voltage Transformer Ratio  
Neutral VT Ratio  
500  
500  
0
F3  
Neutral Voltage Transformer  
F103  
SYSTEM SETUP / GEN. PARAMETERS  
11C0  
11C2  
11C3  
11C4  
11C5  
Generator Rated MVA  
50 to 2000001  
5 to 100  
1
1
1
1
1
MVA  
F13  
F3  
2000001  
Generator Rated Power Factor  
Generator Voltage Phase-Phase  
Generator Nominal Frequency  
Generator Phase Sequence  
100  
100 to 30001  
0 to 3  
V
F1  
30001  
Hz  
F107  
F124  
0
0
0 to 2  
SYSTEM SETUP / SERIAL START/STOP  
11E0  
11E1  
11E2  
11E3  
Serial Start/Stop Initiation  
Startup Initiation Relays (2-5)  
Shutdown Initiation Relays (1-4)  
Serial Start/Stop Events  
0 to 1  
1 to 4  
0 to 3  
0 to 1  
1
1
1
1
F105  
F50  
0
0
0
0
F50  
F105  
DIGITAL INPUTS / BREAKER STATUS  
1200 Breaker Status  
DIGITAL INPUTS / GENERAL INPUT A  
0 to 1  
1
F209  
1
1210  
1211  
1212  
1218  
1219  
121A  
121B  
121C  
Assign Digital Input  
0 to 7  
0 to 1  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
s
F210  
F131  
F22  
F1  
0
0
Asserted Digital Input State  
Input Name  
0 to 12  
0 to 5000  
0 to 1  
_
Block Input From Online  
General Input A Control  
Pulsed Control Relay Dwell Time  
Assign Control Relays (1-5)  
General Input A Control Events  
0
s
F105  
F2  
0
0 to 250  
0 to 4  
0
s
F50  
F105  
F115  
F50  
F2  
0
0 to 1  
0
121D General Input A Alarm  
0 to 2  
0
121E  
121F  
1220  
1221  
1222  
1223  
Assign Alarm Relays (2-5)  
General Input A Alarm Delay  
General Input A Alarm Events  
General Input A Trip  
1 to 4  
16  
50  
0
1 to 50000  
0 to 1  
s
F105  
F115  
F50  
F2  
0 to 2  
0
Assign Trip Relays (1-4)  
General Input A Trip Delay  
0 to 3  
1
1 to 50000  
50  
DIGITAL INPUTS / GENERAL INPUT B  
1230  
1231  
1232  
1238  
1239  
123A  
123B  
123C  
Assign Digital Input  
0 to 7  
0 to 1  
1
1
1
1
1
1
1
1
1
1
1
1
1
s
F210  
F131  
F22  
0
0
Asserted Digital Input State  
Input Name  
0 to 12  
0 to 5000  
0 to 1  
_
Block Input From Online  
General Input B Control  
Pulsed Control Relay Dwell Time  
Assign Control Relays (1-5)  
General Input B Control Events  
F1  
0
s
F105  
F2  
0
0 to 250  
0 to 4  
0
s
F50  
0
0 to 1  
F105  
F115  
F50  
0
123D General Input B Alarm  
0 to 2  
0
123E  
123F  
1240  
1241  
Assign Alarm Relays (2-5)  
General Input B Alarm Delay  
General Input B Alarm Events  
General Input B Trip  
1 to 4  
16  
50  
0
1 to 50000  
0 to 1  
F2  
F105  
F115  
0 to 2  
0
1, 2, 3 See Table footnotes on page 39  
19  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 10 of 29)  
ADDR NAME  
RANGE  
0 to 3  
STEP  
UNITS  
FORMAT  
F50  
DEFAULT  
1242  
1243  
Assign Trip Relays (1-4)  
1
1
s
1
General Input B Trip Delay  
1 to 50000  
F2  
50  
DIGITAL INPUTS / GENERAL INPUT C  
1250  
1251  
1252  
1258  
1259  
125A  
125B  
125C  
Assign Digital Input  
0 to 7  
0 to 1  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
s
F210  
F131  
F22  
F1  
0
0
Asserted Digital Input State  
Input Name  
0 to 12  
0 to 5000  
0 to 1  
_
Block Input From Online  
General Input C Control  
Pulsed Control Relay Dwell Time  
Assign Control Relays (1-5)  
General Input C Control Events  
0
s
F105  
F2  
0
0 to 250  
0 to 4  
0
s
F50  
F105  
F115  
F50  
F2  
0
0 to 1  
0
125D General Input C Alarm  
0 to 2  
0
125E  
125F  
1260  
1261  
1262  
1263  
Assign Alarm Relays (2-5)  
General Input C Alarm Delay  
General Input C Alarm Events  
General Input C Trip  
1 to 4  
16  
50  
0
1 to 50000  
0 to 1  
s
F105  
F115  
F50  
F2  
0 to 2  
0
Assign Trip Relays (1-4)  
General Input C Trip Delay  
0 to 3  
1
1 to 50000  
50  
DIGITAL INPUTS / GENERAL INPUT D  
1270  
1271  
1272  
1278  
1279  
127A  
127B  
127C  
Assign Digital Input  
0 to 7  
0 to 1  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
s
F210  
F131  
F22  
F1  
0
0
Asserted Digital Input State  
Input Name  
0 to 12  
0 to 5000  
0 to 1  
_
Block Input From Online  
General Input D Control  
Pulsed Control Relay Dwell Time  
Assign Control Relays (1-5)  
General Input D Control Events  
0
s
F105  
F2  
0
0 to 250  
0 to 4  
0
s
F50  
F105  
F115  
F50  
F2  
0
0 to 1  
0
127D General Input D Alarm  
0 to 2  
0
127E  
127F  
1280  
1281  
1282  
1283  
Assign Alarm Relays (2-5)  
General Input D Alarm Delay  
General Input D Alarm Events  
General Input D Trip  
1 to 4  
16  
50  
0
1 to 50000  
0 to 1  
s
F105  
F115  
F50  
F2  
0 to 2  
0
Assign Trip Relays (1-4)  
General Input D Trip Delay  
0 to 3  
1
1 to 50000  
50  
DIGITAL INPUTS / GENERAL INPUT E  
1290  
1291  
1292  
1298  
1299  
129A  
129B  
129C  
Assign Digital Input  
0 to 7  
0 to 1  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
s
F210  
F131  
F22  
F1  
0
0
Asserted Digital Input State  
Input Name  
0 to 12  
0 to 5000  
0 to 1  
_
Block Input From Online  
General Input E Control  
Pulsed Control Relay Dwell Time  
Assign Control Relays (1-5)  
General Input E Control Events  
0
s
F105  
F2  
0
0 to 250  
0 to 4  
0
s
F50  
F105  
F115  
F50  
F2  
0
0 to 1  
0
129D General Input E Alarm  
0 to 2  
0
129E  
129F  
12A0  
12A1  
12A2  
12A3  
Assign Alarm Relays (2-5)  
General Input E Alarm Delay  
General Input E Alarm Events  
General Input E Trip  
1 to 4  
16  
50  
0
1 to 50000  
0 to 1  
s
F105  
F115  
F50  
F2  
0 to 2  
0
Assign Trip Relays (1-4)  
General Input E Trip Delay  
0 to 3  
1
1 to 50000  
50  
DIGITAL INPUTS / GENERAL INPUT F  
12B0  
12B1  
Assign Digital Input  
0 to 7  
0 to 1  
1
1
F210  
F131  
0
0
Asserted Digital Input State  
1, 2, 3 See Table footnotes on page 39  
20  
GE Multilin  
Download from Www.Somanuals.com. All Manuals Search And Download.  
489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 11 of 29)  
ADDR NAME  
RANGE  
0 to 12  
0 to 5000  
0 to 1  
STEP  
UNITS  
FORMAT  
F22  
DEFAULT  
12B2  
12B8  
12B9  
Input Name  
1
1
1
1
1
1
1
1
1
1
1
1
1
s
_
0
Block Input From Online  
General Input F Control  
F1  
s
F105  
F2  
0
12BA Pulsed Control Relay Dwell Time  
12BB Assign Control Relays (1-5)  
12BC General Input F Control Events  
12BD General Input F Alarm  
0 to 250  
0 to 4  
0
s
F50  
0
0 to 1  
F105  
F115  
F50  
0
0 to 2  
0
12BE  
12BF  
12C0  
12C1  
12C2  
12C3  
Assign Alarm Relays (2-5)  
General Input F Alarm Delay  
General Input F Alarm Events  
General Input F Trip  
1 to 4  
16  
50  
0
1 to 50000  
0 to 1  
F2  
s
F105  
F115  
F50  
0 to 2  
0
Assign Trip Relays (1-4)  
General Input F Trip Delay  
0 to 3  
1
1 to 50000  
F2  
50  
DIGITAL INPUTS / GENERAL INPUT G  
12D0 Assign Digital Input  
0 to 7  
0 to 1  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
s
F210  
F131  
F22  
F1  
0
0
12D1 Asserted Digital Input State  
12D2 Input Name  
0 to 12  
0 to 5000  
0 to 1  
_
12D8 Block Input From Online  
12D9 General Input G Control  
12DA Pulsed Control Relay Dwell Time  
12DB Assign Control Relays (1-5)  
12DC General Input G Control Events  
12DD General Input G Alarm  
0
s
F105  
F2  
0
0 to 250  
0 to 4  
0
s
F50  
F105  
F115  
F50  
F2  
0
0 to 1  
0
0 to 2  
0
12DE Assign Alarm Relays (2-5)  
12DF General Input G Alarm Delay  
1 to 4  
16  
50  
0
1 to 50000  
0 to 1  
12E0  
12E1  
12E2  
12E3  
General Input G Alarm Events  
General Input G Trip  
s
F105  
F115  
F50  
F2  
0 to 2  
0
Assign Trip Relays (1-4)  
General Input G Trip Delay  
0 to 3  
1
1 to 50000  
50  
DIGITAL INPUTS / REMOTE RESET  
1300 Assign Digital Input  
DIGITAL INPUTS / TEST INPUT  
1310 Assign Digital Input  
DIGITAL INPUTS / THERMAL RESET  
1320 Assign Digital Input  
DIGITAL INPUTS / DUAL SETPOINTS  
0 to 7  
0 to 7  
0 to 7  
1
1
1
F210  
F210  
F210  
0
0
0
1340  
1341  
1342  
Assign Digital Input  
Active Setpoint Group  
Edit Setpoint Group  
0 to 7  
0 to 1  
0 to 1  
1
1
1
F210  
F118  
F118  
0
0
0
DIGITAL INPUTS / SEQUENTIAL TRIP  
1360  
1361  
1362  
1363  
1365  
Assign Digital Input  
Sequential Trip Type  
Assign Trip Relays (1-4)  
Sequential Trip Level  
Sequential Trip Delay  
0 to 7  
0 to 1  
1
1
1
1
1
F210  
F206  
F50  
F14  
F2  
0
0
0 to 3  
1
2 to 99  
2 to 1200  
× Rated MW  
5
s
10  
DIGITAL INPUTS / FIELD-BREAKER DISCREPANCY  
1380  
1381  
1382  
1383  
Assign Digital Input  
0 to 7  
0 to 1  
1
1
1
1
s
F210  
F109  
F50  
F2  
0
0
Field Status Contact  
Assign Trip Relays (1-4)  
Field-Breaker Discrepancy Trip Delay  
0 to 3  
1
1 to 5000  
10  
DIGITAL INPUTS / TACHOMETER  
13A0  
13A1  
Assign Digital Input  
Rated Speed  
0 to 7  
1
1
F210  
F1  
0
100 to 3600  
RPM  
3600  
1, 2, 3 See Table footnotes on page 39  
21  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 12 of 29)  
ADDR NAME  
RANGE  
0 to 2  
STEP  
UNITS  
FORMAT  
F115  
F50  
DEFAULT  
13A2  
13A3  
13A4  
13A5  
13A6  
13A7  
13A8  
13A9  
Tachometer Alarm  
1
1
1
1
1
1
1
1
1
0
16  
110  
1
Assign Alarm Relays (2-5)  
Tachometer Alarm Speed  
Tachometer Alarm Delay  
Tachometer Alarm Events  
Tachometer Trip  
1 to 4  
101 to 175  
1 to 250  
0 to 1  
%Rated  
F1  
s
F1  
F105  
F115  
F50  
0
0 to 2  
0
Assign Trip Relays (1-4)  
Tachometer Trip Speed  
0 to 3  
%Rated  
s
1
101 to 175  
1 to 250  
F1  
110  
1
13AA Tachometer Trip Delay  
F1  
DIGITAL INPUTS / WAVEFORM CAPTURE  
13C0  
Assign Digital Input  
0 to 7  
1
F210  
0
DIGITAL INPUTS / GROUND SWITCH STATUS  
13D0 Assign Digital Input  
0 to 7  
0 to 1  
1
1
F210  
F109  
0
0
13D1 Ground Switch Contact  
OUTPUT RELAYS / RELAY RESET MODE  
1400  
1401  
1402  
1403  
1404  
1405  
1 Trip  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
0 to 1  
1
1
1
1
1
1
F117  
F117  
F117  
F117  
F117  
F117  
0
0
0
0
0
0
2 Auxiliary  
3 Auxiliary  
4 Auxiliary  
5 Alarm  
6 Service  
CURRENT ELEMENTS / OVERCURRENT ALARM  
1500  
1501  
1502  
1503  
1504  
Overcurrent Alarm  
0 to 2  
1 to 4  
1
1
1
1
1
F115  
F50  
F3  
0
16  
101  
1
Assign Alarm Relays (2-5)  
Overcurrent Alarm Level  
Overcurrent Alarm Delay  
Overcurrent Alarm Events  
× FLA  
s
10 to 150  
1 to 2500  
0 to 1  
F2  
F105  
0
CURRENT ELEMENTS / OFFLINE OVERCURRENT  
1520  
1521  
1522  
1523  
Offline Overcurrent Trip  
0 to 2  
0 to 3  
1
1
1
1
F115  
F50  
F3  
0
1
5
5
Assign Trip Relays (1-4)  
Offline Overcurrent Pickup  
Offline Overcurrent Trip Delay  
5 to 100  
3 to 99  
× CT  
Cycles  
F1  
CURRENT ELEMENTS / INADVERTENT ENERGIZATION  
1540  
1541  
1542  
1543  
1544  
Inadvertent Energize Trip  
Assign Trip Relays (1-4)  
Arming Signal  
0 to 2  
0 to 3  
1
1
1
1
1
F115  
F50  
F202  
F3  
0
1
0 to 1  
0
Inadvertent Energize O/c Pickup  
Inadvertent Energize Pickup  
5 to 300  
50 to 99  
× CT  
5
× Rated V  
F3  
50  
CURRENT ELEMENTS / PHASE OVERCURRENT  
1600  
1601  
1602  
1603  
1604  
1605  
1606  
1607  
1608  
1609  
160A  
160B  
160C  
Phase Overcurrent Trip  
0 to 2  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
F115  
F50  
F103  
F3  
0
Assign Trip Relays (1-4)  
0 to 3  
1
Enable Voltage Restraint  
0 to 1  
0
Phase Overcurrent Pickup  
15 to 2000  
0 to 13  
× CT  
1000  
0
Curve Shape  
F128  
F1  
FlexCurve™ Trip Time at 1.03 × PU  
FlexCurve™ Trip Time at 1.05 × PU  
FlexCurve™ Trip Time at 1.10 × PU  
FlexCurve™ Trip Time at 1.20 × PU  
FlexCurve™ Trip Time at 1.30 × PU  
FlexCurve™ Trip Time at 1.40 × PU  
FlexCurve™ Trip Time at 1.50 × PU  
FlexCurve™ Trip Time at 1.60 × PU  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
160D FlexCurve™ Trip Time at 1.70 × PU  
F1  
1, 2, 3 See Table footnotes on page 39  
22  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 13 of 29)  
ADDR NAME  
RANGE  
STEP  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
UNITS  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
FORMAT  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
DEFAULT  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
160E  
160F  
1610  
1611  
1612  
1613  
1614  
1615  
1616  
1617  
1618  
1619  
161A  
161B  
161C  
FlexCurve™ Trip Time at 1.80 × PU  
FlexCurve™ Trip Time at 1.90 × PU  
FlexCurve™ Trip Time at 2.00 × PU  
FlexCurve™ Trip Time at 2.10 × PU  
FlexCurve™ Trip Time at 2.20 × PU  
FlexCurve™ Trip Time at 2.30 × PU  
FlexCurve™ Trip Time at 2.40 × PU  
FlexCurve™ Trip Time at 2.50 × PU  
FlexCurve™ Trip Time at 2.60 × PU  
FlexCurve™ Trip Time at 2.70 × PU  
FlexCurve™ Trip Time at 2.80 × PU  
FlexCurve™ Trip Time at 2.90 × PU  
FlexCurve™ Trip Time at 3.00 × PU  
FlexCurve™ Trip Time at 3.10 × PU  
FlexCurve™ Trip Time at 3.20 × PU  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
161D FlexCurve™ Trip Time at 3.30 × PU  
161E  
161F  
1620  
1621  
1622  
1623  
1624  
1625  
1626  
1627  
1628  
1629  
162A  
162B  
162C  
FlexCurve™ Trip Time at 3.40 × PU  
FlexCurve™ Trip Time at 3.50 × PU  
FlexCurve™ Trip Time at 3.60 × PU  
FlexCurve™ Trip Time at 3.70 × PU  
FlexCurve™ Trip Time at 3.80 × PU  
FlexCurve™ Trip Time at 3.90 × PU  
FlexCurve™ Trip Time at 4.00 × PU  
FlexCurve™ Trip Time at 4.10 × PU  
FlexCurve™ Trip Time at 4.20 × PU  
FlexCurve™ Trip Time at 4.30 × PU  
FlexCurve™ Trip Time at 4.40 × PU  
FlexCurve™ Trip Time at 4.50 × PU  
FlexCurve™ Trip Time at 4.60 × PU  
FlexCurve™ Trip Time at 4.70 × PU  
FlexCurve™ Trip Time at 4.80 × PU  
162D FlexCurve™ Trip Time at 4.90 × PU  
162E  
162F  
1630  
1631  
1632  
1633  
1634  
1635  
1636  
1637  
1638  
1639  
163A  
163B  
163C  
FlexCurve™ Trip Time at 5.00 × PU  
FlexCurve™ Trip Time at 5.10 × PU  
FlexCurve™ Trip Time at 5.20 × PU  
FlexCurve™ Trip Time at 5.30 × PU  
FlexCurve™ Trip Time at 5.40 × PU  
FlexCurve™ Trip Time at 5.50 × PU  
FlexCurve™ Trip Time at 5.60 × PU  
FlexCurve™ Trip Time at 5.70 × PU  
FlexCurve™ Trip Time at 5.80 × PU  
FlexCurve™ Trip Time at 5.90 × PU  
FlexCurve™ Trip Time at 6.00 × PU  
FlexCurve™ Trip Time at 6.50 × PU  
FlexCurve™ Trip Time at 7.00 × PU  
FlexCurve™ Trip Time at 7.50 × PU  
FlexCurve™ Trip Time at 8.00 × PU  
163D FlexCurve™ Trip Time at 8.50 × PU  
163E  
163F  
1640  
1641  
1642  
FlexCurve™ Trip Time at 9.00 × PU  
FlexCurve™ Trip Time at 9.50 × PU  
FlexCurve™ Trip Time at 10.0 × PU  
FlexCurve™ Trip Time at 10.5 × PU  
FlexCurve™ Trip Time at 11.0 × PU  
1, 2, 3 See Table footnotes on page 39  
23  
GE Multilin  
Download from Www.Somanuals.com. All Manuals Search And Download.  
489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 14 of 29)  
ADDR NAME  
RANGE  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 100000  
0 to 1  
STEP  
1
UNITS  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
FORMAT  
F1  
DEFAULT  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
100  
1643  
1644  
1645  
1646  
1647  
1648  
1649  
164A  
164B  
164C  
FlexCurve™ Trip Time at 11.5 × PU  
FlexCurve™ Trip Time at 12.0 × PU  
FlexCurve™ Trip Time at 12.5 × PU  
FlexCurve™ Trip Time at 13.0 × PU  
FlexCurve™ Trip Time at 13.5 × PU  
FlexCurve™ Trip Time at 14.0 × PU  
FlexCurve™ Trip Time at 14.5 × PU  
FlexCurve™ Trip Time at 15.0 × PU  
FlexCurve™ Trip Time at 15.5 × PU  
FlexCurve™ Trip Time at 16.0 × PU  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
164D FlexCurve™ Trip Time at 16.5 × PU  
1
F1  
164E  
164F  
1650  
1651  
1652  
1653  
1654  
1655  
1657  
1658  
FlexCurve™ Trip Time at 17.0 × PU  
FlexCurve™ Trip Time at 17.5 × PU  
FlexCurve™ Trip Time at 18.0 × PU  
FlexCurve™ Trip Time at 18.5 × PU  
FlexCurve™ Trip Time at 19.0 × PU  
FlexCurve™ Trip Time at 19.5 × PU  
FlexCurve™ Trip Time at 20.0 × PU  
Overcurrent Curve Multiplier  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F14  
F201  
F1  
Overcurrent Curve Reset  
1
0
Voltage Lower Limit  
10 to 60  
1
%
10  
CURRENT ELEMENTS / NEGATIVE SEQUENCE  
1700  
1701  
1702  
1703  
1704  
1705  
1706  
1707  
1708  
1709  
170A  
Negative Sequence Alarm  
0 to 2  
1 to 4  
1
1
1
1
1
1
1
1
1
1
1
F115  
F50  
F1  
0
16  
3
Assign Alarm Relays (2-5)  
Negative Sequence Alarm Pickup  
Negative Sequence Alarm Delay  
Negative Sequence Alarm Events  
Negative Sequence Overcurrent Trip  
Assign Trip Relays (1-4)  
3 to 100  
1 to 1000  
0 to 1  
%FLA  
s
F2  
50  
0
F105  
F115  
F50  
F1  
0 to 2  
0
0 to 3  
1
Negative Sequence Overcurrent Trip Pickup  
Negative Sequence Overcurrent Constant K  
Negative Sequence Overcurrent Maximum Time  
Negative Sequence Overcurrent Reset Rate  
3 to 100  
1 to 100  
10 to 1000  
0 to 9999  
%FLA  
8
s
s
F1  
1
F1  
1000  
2270  
F2  
CURRENT ELEMENTS / GROUND O/C  
1720  
1721  
1722  
1723  
1724  
1725  
1726  
1727  
1728  
1729  
172A  
172B  
172C  
Ground Overcurrent Alarm  
0 to 2  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
F115  
F50  
F3  
0
Assign Alarm Relays (2-5)  
1 to 4  
16  
Ground Overcurrent Alarm Pickup  
Ground Overcurrent Alarm Delay  
Ground Overcurrent Alarm Events  
Ground Overcurrent Trip  
5 to 2000  
0 to 100  
× CT  
Cycles  
20  
F1  
0
0 to 1  
F105  
F115  
F50  
F3  
0
0 to 2  
0
Assign Trip Relays (1-4)  
0 to 3  
1
Ground Overcurrent Trip Pickup  
Curve Shape  
5 to 2000  
0 to 13  
× CT  
20  
F128  
F1  
0
FlexCurve™ Trip Time at 1.03 × PU  
FlexCurve™ Trip Time at 1.05 × PU  
FlexCurve™ Trip Time at 1.10 × PU  
FlexCurve™ Trip Time at 1.20 × PU  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
F1  
F1  
F1  
172D FlexCurve™ Trip Time at 1.30 × PU  
F1  
172E  
172F  
1730  
1731  
1732  
FlexCurve™ Trip Time at 1.40 × PU  
FlexCurve™ Trip Time at 1.50 × PU  
FlexCurve™ Trip Time at 1.60 × PU  
FlexCurve™ Trip Time at 1.70 × PU  
FlexCurve™ Trip Time at 1.80 × PU  
F1  
F1  
F1  
F1  
F1  
1, 2, 3 See Table footnotes on page 39  
24  
GE Multilin  
Download from Www.Somanuals.com. All Manuals Search And Download.  
489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 15 of 29)  
ADDR NAME  
RANGE  
STEP  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
UNITS  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
FORMAT  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
DEFAULT  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
1733  
1734  
1735  
1736  
1737  
1738  
1739  
173A  
173B  
173C  
FlexCurve™ Trip Time at 1.90 × PU  
FlexCurve™ Trip Time at 2.00 × PU  
FlexCurve™ Trip Time at 2.10 × PU  
FlexCurve™ Trip Time at 2.20 × PU  
FlexCurve™ Trip Time at 2.30 × PU  
FlexCurve™ Trip Time at 2.40 × PU  
FlexCurve™ Trip Time at 2.50 × PU  
FlexCurve™ Trip Time at 2.60 × PU  
FlexCurve™ Trip Time at 2.70 × PU  
FlexCurve™ Trip Time at 2.80 × PU  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
173D FlexCurve™ Trip Time at 2.90 × PU  
173E  
173F  
1740  
1741  
1742  
1743  
1744  
1745  
1746  
1747  
1748  
1749  
174A  
174B  
174C  
FlexCurve™ Trip Time at 3.00 × PU  
FlexCurve™ Trip Time at 3.10 × PU  
FlexCurve™ Trip Time at 3.20 × PU  
FlexCurve™ Trip Time at 3.30 × PU  
FlexCurve™ Trip Time at 3.40 × PU  
FlexCurve™ Trip Time at 3.50 × PU  
FlexCurve™ Trip Time at 3.60 × PU  
FlexCurve™ Trip Time at 3.70 × PU  
FlexCurve™ Trip Time at 3.80 × PU  
FlexCurve™ Trip Time at 3.90 × PU  
FlexCurve™ Trip Time at 4.00 × PU  
FlexCurve™ Trip Time at 4.10 × PU  
FlexCurve™ Trip Time at 4.20 × PU  
FlexCurve™ Trip Time at 4.30 × PU  
FlexCurve™ Trip Time at 4.40 × PU  
174D FlexCurve™ Trip Time at 4.50 × PU  
174E  
174F  
1750  
1751  
1752  
1753  
1754  
1755  
1756  
1757  
1758  
1759  
175A  
175B  
175C  
FlexCurve™ Trip Time at 4.60 × PU  
FlexCurve™ Trip Time at 4.70 × PU  
FlexCurve™ Trip Time at 4.80 × PU  
FlexCurve™ Trip Time at 4.90 × PU  
FlexCurve™ Trip Time at 5.00 × PU  
FlexCurve™ Trip Time at 5.10 × PU  
FlexCurve™ Trip Time at 5.20 × PU  
FlexCurve™ Trip Time at 5.30 × PU  
FlexCurve™ Trip Time at 5.40 × PU  
FlexCurve™ Trip Time at 5.50 × PU  
FlexCurve™ Trip Time at 5.60 × PU  
FlexCurve™ Trip Time at 5.70 × PU  
FlexCurve™ Trip Time at 5.80 × PU  
FlexCurve™ Trip Time at 5.90 × PU  
FlexCurve™ Trip Time at 6.00 × PU  
175D FlexCurve™ Trip Time at 6.50 × PU  
175E  
175F  
1760  
1761  
1762  
1763  
1764  
1765  
1766  
1767  
FlexCurve™ Trip Time at 7.00 × PU  
FlexCurve™ Trip Time at 7.50 × PU  
FlexCurve™ Trip Time at 8.00 × PU  
FlexCurve™ Trip Time at 8.50 × PU  
FlexCurve™ Trip Time at 9.00 × PU  
FlexCurve™ Trip Time at 9.50 × PU  
FlexCurve™ Trip Time at 10.0 × PU  
FlexCurve™ Trip Time at 10.5 × PU  
FlexCurve™ Trip Time at 11.0 × PU  
FlexCurve™ Trip Time at 11.5 × PU  
1, 2, 3 See Table footnotes on page 39  
25  
GE Multilin  
Download from Www.Somanuals.com. All Manuals Search And Download.  
489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 16 of 29)  
ADDR NAME  
RANGE  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 65535  
0 to 100000  
0 to 1  
STEP  
1
UNITS  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
ms  
FORMAT  
F1  
DEFAULT  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
65535  
100  
1768  
1769  
176A  
176B  
176C  
FlexCurve™ Trip Time at 12.0 × PU  
FlexCurve™ Trip Time at 12.5 × PU  
FlexCurve™ Trip Time at 13.0 × PU  
FlexCurve™ Trip Time at 13.5 × PU  
FlexCurve™ Trip Time at 14.0 × PU  
1
F1  
1
F1  
1
F1  
1
F1  
176D FlexCurve™ Trip Time at 14.5 × PU  
1
F1  
176E  
176F  
1770  
1771  
1772  
1773  
1774  
1775  
1776  
1777  
1778  
1779  
177B  
FlexCurve™ Trip Time at 15.0 × PU  
FlexCurve™ Trip Time at 15.5 × PU  
FlexCurve™ Trip Time at 16.0 × PU  
FlexCurve™ Trip Time at 16.5 × PU  
FlexCurve™ Trip Time at 17.0 × PU  
FlexCurve™ Trip Time at 17.5 × PU  
FlexCurve™ Trip Time at 18.0 × PU  
FlexCurve™ Trip Time at 18.5 × PU  
FlexCurve™ Trip Time at 19.0 × PU  
FlexCurve™ Trip Time at 19.5 × PU  
FlexCurve™ Trip Time at 20.0 × PU  
Overcurrent Curve Multiplier  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F1  
1
F14  
F201  
Overcurrent Curve Reset  
1
0
CURRENT ELEMENTS / PHASE DIFFERENTIAL  
17E0  
17E1  
17E2  
17E3  
17E4  
17E5  
Phase Differential Trip  
0 to 2  
0 to 3  
1
1
1
1
1
1
F115  
F50  
F3  
0
1
Assign Trip Relays (1-4)  
Differential Trip Minimum Pickup  
Differential Trip Slope 1  
Differential Trip Slope 2  
Differential Trip Delay  
5 to 100  
1 to 100  
1 to 100  
0 to 100  
× CT  
%
10  
10  
20  
0
F1  
%
F1  
cycles  
F1  
CURRENT ELEMENTS / GROUND DIRECTIONAL  
1800  
1801  
1802  
1803  
1804  
1805  
1806  
1807  
1808  
1809  
180A  
Supervise With Digital Input  
Ground Directional MTA  
0 to 1  
0 to 3  
1
1
1
1
1
1
1
1
1
1
1
F103  
F217  
F115  
F50  
F3  
1
0
Ground Directional Alarm  
0 to 2  
0
Assign Alarm Relays (2-5)  
Ground Directional Alarm Pickup  
Ground Directional Alarm Delay  
Ground Directional Alarm Events  
Ground Directional Trip  
1 to 4  
16  
5
5 to 2000  
1 to 1200  
0 to 1  
× CT  
s
F2  
30  
0
F105  
F115  
F50  
F3  
0 to 2  
0
Assign Trip Relays (1-4)  
0 to 3  
1
Ground Directional Trip Pickup  
Ground Directional Trip Delay  
5 to 2000  
1 to 1200  
× CT  
s
5
F2  
30  
CURRENT ELEMENTS / HIGH-SET PHASE OVERCURRENT  
1830  
1831  
1832  
1833  
High-Set Phase Overcurrent Trip  
Assign Trip Relays (1-4)  
0 to 2  
0 to 3  
1
1
1
1
F115  
F50  
F3  
0
1
High-Set Phase Overcurrent Pickup  
High-Set Phase Overcurrent Delay  
15 to 2000  
0 to 10000  
× CT  
s
500  
100  
F3  
VOLTAGE ELEMENTS / UNDERVOLTAGE  
2000  
2001  
2002  
2003  
2004  
2005  
2006  
2007  
2008  
Undervoltage Alarm  
0 to 2  
1 to 4  
1
1
1
1
1
1
1
1
1
F115  
F50  
F3  
0
16  
85  
30  
0
Assign Alarm Relays (2-5)  
Undervoltage Alarm Pickup  
Undervoltage Alarm Delay  
Undervoltage Alarm Events  
Undervoltage Trip  
50 to 99  
2 to 1200  
0 to 1  
× Rated  
s
F2  
F105  
F115  
F50  
F3  
0 to 2  
0
Assign Trip Relays (1-4)  
Undervoltage Trip Pickup  
Undervoltage Trip Delay  
0 to 3  
× Rated  
s
1
50 to 99  
2 to 100  
80  
10  
F2  
1, 2, 3 See Table footnotes on page 39  
26  
GE Multilin  
Download from Www.Somanuals.com. All Manuals Search And Download.  
489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 17 of 29)  
ADDR NAME  
RANGE  
0 to 9999  
0 to 1  
STEP  
UNITS  
FORMAT  
F2  
DEFAULT  
2009  
200A  
Undervoltage Curve Reset Rate  
Undervoltage Curve Element  
1
1
s
14  
0
F208  
VOLTAGE ELEMENTS / OVERVOLTAGE  
2020  
2021  
2022  
2023  
2024  
2025  
2026  
2027  
2028  
2029  
202A  
Overvoltage Alarm  
0 to 2  
1 to 4  
1
1
1
1
1
1
1
1
1
1
1
F115  
F50  
F3  
0
16  
115  
30  
0
Assign Alarm Relays (2-5)  
Overvoltage Alarm Pickup  
Overvoltage Alarm Delay  
Overvoltage Alarm Events  
Overvoltage Trip  
101 to 150  
1 to 1200  
0 to 1  
× Rated  
s
F2  
F105  
F115  
F50  
F3  
0 to 2  
0
Assign Trip Relays (1-4)  
Overvoltage Trip Pickup  
Overvoltage Trip Delay  
Overvoltage Curve Reset Rate  
Overvoltage Curve Element  
0 to 3  
1
101 to 150  
1 to 100  
0 to 9999  
0 to 1  
× Rated  
120  
10  
14  
0
s
s
F2  
F2  
F208  
VOLTAGE ELEMENTS / VOLTS/HERTZ  
2040  
2041  
2042  
2043  
2044  
2045  
2046  
2047  
2048  
2049  
204A  
Volts/Hertz Alarm  
0 to 2  
1 to 4  
1
1
1
1
1
1
1
1
1
1
1
F115  
F50  
F3  
0
16  
100  
30  
0
Assign Alarm Relays (2-5)  
Volts/Hertz Alarm Pickup  
Volts/Hertz Alarm Delay  
Volts/Hertz Alarm Events  
Volts/Hertz Trip  
50 to 199  
1 to 1500  
0 to 1  
× Nominal  
s
F2  
F105  
F115  
F50  
F3  
0 to 2  
0
Assign Trip Relays (1-4)  
Volts/Hertz Trip Pickup  
Volts/Hertz Trip Delay  
Volts/Hertz Curve Reset Rate  
Volts/Hertz Trip Element  
0 to 3  
1
50 to 199  
1 to 1500  
0 to 9999  
0 to 3  
× Nominal  
100  
10  
14  
0
s
s
F2  
F2  
F211  
VOLTAGE ELEMENTS / PHASE REVERSAL  
2060  
2061  
Phase Reversal Trip  
0 to 2  
0 to 3  
1
1
F115  
F50  
0
1
Assign Trip Relays (1-4)  
VOLTAGE ELEMENTS / UNDERFREQUENCY  
2080  
2081  
2082  
2083  
2084  
2085  
2086  
2087  
2088  
2089  
208A  
208B  
208C  
Block Underfrequency From Online  
Voltage Level Cutoff  
0 to 5  
50 to 99  
1
1
1
1
1
1
1
1
1
1
1
1
1
s
F1  
F3  
1
50  
× Rated  
Underfrequency Alarm  
0 to 2  
F115  
F50  
F3  
0
Assign Alarm Relays (2-5)  
Underfrequency Alarm Level  
Underfrequency Alarm Delay  
Underfrequency Alarm Events  
Underfrequency Trip  
1 to 4  
16  
2000 to 6000  
1 to 50000  
0 to 1  
Hz  
s
5950  
50  
F2  
F105  
F115  
F50  
F3  
0
0 to 2  
0
Assign Trip Relays (1-4)  
0 to 3  
1
Underfrequency Trip Level 1  
Underfrequency Trip Delay 1  
Underfrequency Trip Level 2  
Underfrequency Trip Delay 2  
2000 to 6000  
1 to 50000  
2000 to 6000  
1 to 50000  
Hz  
s
5950  
600  
5800  
300  
F2  
Hz  
s
F3  
F2  
VOLTAGE ELEMENTS / OVERFREQUENCY  
20A0  
20A1  
20A2  
20A3  
20A4  
20A5  
20A6  
20A7  
20A8  
Block Overfrequency From Online  
Voltage Level Cutoff  
0 to 5  
50 to 99  
0 to 2  
1
1
1
1
1
1
1
1
1
s
F1  
F3  
1
50  
0
× Rated  
Overfrequency Alarm  
F115  
F50  
F3  
Assign Alarm Relays (2-5)  
Overfrequency Alarm Level  
Overfrequency Alarm Delay  
Overfrequency Alarm Events  
Overfrequency Trip  
1 to 4  
16  
6050  
50  
0
2501 to 7000  
1 to 50000  
0 to 1  
Hz  
s
F2  
F105  
F115  
F50  
0 to 2  
0
Assign Trip Relays (1-4)  
0 to 3  
1
1, 2, 3 See Table footnotes on page 39  
27  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 18 of 29)  
ADDR NAME  
RANGE  
STEP  
UNITS  
FORMAT  
DEFAULT  
6050  
600  
20A9  
Overfrequency Trip Level 1  
2501 to 7000  
1 to 50000  
2501 to 7000  
1 to 50000  
1
1
1
1
Hz  
s
F3  
F2  
F3  
F2  
20AA Overfrequency Trip Delay 1  
20AB Overfrequency Trip Level 2  
20AC Overfrequency Trip Delay 2  
Hz  
s
6200  
300  
VOLTAGE ELEMENTS / NEUTRAL OVERVOLTAGE (FUNDAMENTAL)  
20C0  
20C1  
20C2  
20C3  
20C4  
20C5  
20C6  
20C7  
20C8  
20C9  
Neutral Overvoltage Alarm  
Assign Alarm Relays (2-5)  
0 to 2  
1 to 4  
1
1
1
1
1
1
1
1
1
1
1
1
F115  
F50  
F2  
0
16  
30  
10  
0
Neutral Overvoltage Alarm Level  
Neutral Overvoltage Alarm Delay  
Neutral Overvoltage Alarm Events  
Neutral Overvoltage Trip  
20 to 1000  
1 to 1200  
0 to 1  
Vsec.  
s
V
s
F2  
F105  
F115  
F50  
F2  
0 to 2  
0
Assign Trip Relays (1-4)  
0 to 3  
1
Neutral Overvoltage Trip Level  
Neutral Overvoltage Trip Delay  
Supervise With Digital Input  
20 to 1000  
1 to 1200  
0 to 1  
50  
10  
0
F2  
s
F103  
F2  
20CA Neutral Overvoltage Curve Reset Rate  
20CB Neutral Overvoltage Trip Element  
0 to 9999  
0 to 1  
0
F208  
1
VOLTAGE ELEMENTS / NEUTRAL UNDERVOLTAGE (3rd HARMONIC)  
20E0  
20E2  
20E3  
20E4  
20E5  
20E6  
20E7  
20E8  
20E9  
20EA  
20EB  
Low Power Blocking Level  
2 to 99  
50 to 100  
0 to 2  
1
1
1
1
1
1
1
1
1
1
1
× Rated MW  
F14  
F3  
5
75  
0
Low Voltage Blocking Level  
Neutral Undervoltage Alarm  
Assign Alarm Relays (2-5)  
× Rated  
V
s
F115  
F50  
F2  
1 to 4  
16  
5
Neutral Undervoltage Alarm Level  
Neutral Undervoltage Alarm Delay  
Neutral Undervoltage Alarm Events  
Neutral Undervoltage Trip  
5 to 200  
5 to 120  
0 to 1  
F1  
30  
0
V
s
F105  
F115  
F50  
F2  
0 to 2  
0
Assign Trip Relays (1-4)  
0 to 3  
1
Neutral Undervoltage Trip Level  
Neutral Undervoltage Trip Delay  
5 to 200  
5 to 120  
10  
30  
F1  
VOLTAGE ELEMENTS / LOSS OF EXCITATION  
2100  
2101  
2102  
2103  
2104  
2105  
2106  
2107  
2108  
2109  
210A  
210B  
Enable Voltage Supervision  
Voltage Level  
0 to 1  
70 to 100  
0 to 2  
1
1
1
1
1
1
1
1
1
1
1
1
× rated  
F103  
F3  
0
70  
0
Circle 1 Trip  
F115  
F50  
F2  
Assign Circle 1 Trip Relays (1-4)  
Circle 1 Diameter  
Circle 1 Offset  
0 to 3  
1
25 to 3000  
10 to 3000  
1 to 100  
0 to 2  
s  
s  
s
250  
25  
50  
0
F2  
Circle 1 Trip Delay  
Circle 2 Trip  
F2  
F115  
F50  
F2  
Assign Circle 2 Trip Relays (1-4)  
Circle 2 Diameter  
Circle 2 Offset  
0 to 3  
1
25 to 3000  
10 to 3000  
1 to 100  
s  
s  
s
350  
25  
50  
F2  
Circle 2 Trip Delay  
F2  
VOLTAGE ELEMENTS / DISTANCE ELEMENT  
2130  
2131  
2132  
2133  
2134  
2135  
2136  
2137  
2138  
2139  
Step Up Transformer Setup  
Fuse Failure Supervision  
Zone 1 Trip  
0 to 1  
0 to 1  
1
1
1
1
1
1
1
1
1
1
F219  
F105  
F115  
F50  
F2  
0
0
0 to 2  
0
Assign Zone 1 Trip Relays (1-4)  
Zone 1 Reach  
0 to 3  
1
1 to 5000  
50 to 85  
0 to 1500  
0 to 2  
s  
°
100  
75  
4
Zone 1 Angle  
F1  
Zone 1 Trip Delay  
s
F2  
Zone 2 Trip  
F115  
F50  
F2  
0
Assign Zone 2 Trip Relays (1-4)  
Zone 2 Reach  
0 to 3  
1
1 to 5000  
s  
100  
1, 2, 3 See Table footnotes on page 39  
28  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 19 of 29)  
ADDR NAME  
RANGE  
50 to 85  
0 to 1500  
STEP  
UNITS  
FORMAT  
DEFAULT  
213A  
213B  
Zone 2 Angle  
1
1
°
s
F1  
F2  
75  
20  
Zone 2 Trip Delay  
POWER ELEMENTS / REACTIVE POWER  
2200  
2201  
2202  
2203  
2205  
2207  
2208  
2209  
220A  
220B  
Block Mvar Element From Online  
Reactive Power Alarm  
0 to 5000  
0 to 2  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
s
F1  
F115  
F50  
F14  
F14  
F2  
1
0
Assign Alarm Relays (2-5)  
1 to 4  
16  
85  
85  
10  
0
3
Positive Mvar Alarm Level  
2 to 201  
2 to 201  
2 to 1200  
0 to 1  
x rated  
3
Negative Mvar Alarm Level  
x rated  
Negative Mvar Alarm Delay  
Reactive Power Alarm Events  
Reactive Power Trip  
s
F105  
F115  
F50  
F14  
F14  
F2  
0 to 2  
0
Assign Trip Relays (1-4)  
0 to 3  
1
3
Positive Mvar Trip Level  
2 to 201  
2 to 201  
2 to 1200  
2 to 1200  
2 to 1200  
Mvar  
80  
80  
10  
200  
100  
3
220D Negative Mvar Trip Level  
Mvar  
220F  
2210  
2211  
Negative Mvar Trip Delay  
Positive Mvar Trip Delay  
Positive Mvar Alarm Delay  
s
s
s
F2  
F2  
POWER ELEMENTS / REVERSE POWER  
2240  
2241  
2242  
2243  
2245  
2246  
2247  
2248  
2249  
224B  
Block Reverse Power From Online  
Reverse Power Alarm  
0 to 5000  
0 to 2  
1
1
1
1
1
1
1
1
1
1
s
F1  
F115  
F50  
F14  
F2  
1
0
Assign Alarm Relays (2-5)  
Reverse Power Alarm Level  
Reverse Power Alarm Delay  
Reverse Power Alarm Events  
Reverse Power Trip  
1 to 4  
16  
5
2 to 99  
2 to 1200  
0 to 1  
× Rated  
s
100  
0
F105  
F115  
F50  
F14  
F2  
0 to 2  
0
Assign Trip Relays (1-4)  
Reverse Power Trip Level  
Reverse Power Trip Delay  
0 to 3  
× Rated  
s
1
2 to 99  
2 to 1200  
5
200  
POWER ELEMENTS / LOW FORWARD POWER  
2280  
2281  
2282  
2283  
2285  
2286  
2287  
2288  
2289  
228B  
Block Low Forward Power From Online  
Low Forward Power Alarm  
0 to 15000  
0 to 2  
1
1
1
1
1
1
1
1
1
1
s
F1  
F115  
F50  
F14  
F2  
0
0
Assign Alarm Relays (2-5)  
1 to 4  
16  
5
Low Forward Power Alarm Level  
Low Forward Power Alarm Delay  
Low Forward Power Alarm Events  
Low Forward Power Trip  
2 to 99  
2 to 1200  
0 to 1  
× Rated MW  
s
100  
0
F105  
F115  
F50  
F14  
F2  
0 to 2  
0
Assign Trip Relays (1-4)  
0 to 3  
1
Low Forward Power Trip Level  
Low Forward Power Trip Delay  
2 to 99  
2 to 1200  
× Rated MW  
5
s
200  
RTD TEMPERATURE / RTD TYPES  
2400  
2401  
2402  
2403  
Stator RTD Type  
Bearing RTD Type  
Ambient RTD Type  
Other RTD Type  
0 to 3  
0 to 3  
0 to 3  
0 to 3  
1
1
1
1
F120  
F120  
F120  
F120  
0
0
0
0
RTD TEMPERATURE / RTD #1  
2420  
2421  
2422  
2423  
2424  
2425  
2426  
2427  
RTD #1 Application  
RTD #1 Alarm  
0 to 4  
0 to 2  
1
1
1
1
1
1
1
1
F121  
F115  
F50  
1
0
Assign Alarm Relays (2-5)  
RTD #1 Alarm Temperature  
RTD #1 Alarm Events  
RTD #1 Trip  
1 to 4  
16  
130  
0
1 to 250  
0 to 1  
°C  
F1  
F105  
F115  
F122  
F50  
0 to 2  
0
RTD #1 Trip Voting  
Assign Trip Relays (1-4)  
1 to 12  
0 to 3  
1
1
1, 2, 3 See Table footnotes on page 39  
29  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 20 of 29)  
ADDR NAME  
RANGE  
1 to 250  
0 to 8  
STEP  
UNITS  
FORMAT  
F1  
DEFAULT  
2428  
2429  
RTD #1 Trip Temperature  
RTD #1 Name  
1
1
°C  
155  
_
F22  
RTD TEMPERATURE / RTD #2  
2460  
2461  
2462  
2463  
2464  
2465  
2466  
2467  
2468  
2469  
RTD #2 Application  
RTD #2 Alarm  
0 to 4  
0 to 2  
1
1
1
1
1
1
1
1
1
1
F121  
F115  
F50  
1
0
Assign Alarm Relays (2-5)  
RTD #2 Alarm Temperature  
RTD #2 Alarm Events  
RTD #2 Trip  
1 to 4  
16  
130  
0
1 to 250  
0 to 1  
°C  
F1  
F105  
F115  
F122  
F50  
0 to 2  
0
RTD #2 Trip Voting  
Assign Trip Relays (1-4)  
RTD #2 Trip Temperature  
RTD #2 Name  
1 to 12  
0 to 3  
2
1
1 to 250  
0 to 8  
°C  
F1  
155  
_
F22  
RTD TEMPERATURE / RTD #3  
24A0  
24A1  
24A2  
24A3  
24A4  
24A5  
24A6  
24A7  
24A8  
24A9  
RTD #3 Application  
RTD #3 Alarm  
0 to 4  
0 to 2  
1
1
1
1
1
1
1
1
1
1
F121  
F115  
F50  
1
0
Assign Alarm Relays (2-5)  
RTD #3 Alarm Temperature  
RTD #3 Alarm Events  
RTD #3 Trip  
1 to 4  
16  
130  
0
1 to 250  
0 to 1  
°C  
F1  
F105  
F115  
F122  
F50  
0 to 2  
0
RTD #3 Trip Voting  
Assign Trip Relays (1-4)  
RTD #3 Trip Temperature  
RTD #3 Name  
1 to 12  
0 to 3  
3
1
1 to 250  
0 to 8  
°C  
F1  
155  
_
F22  
RTD TEMPERATURE / RTD #4  
24E0  
24E1  
24E2  
24E3  
24E4  
24E5  
24E6  
24E7  
24E8  
24E9  
RTD #4 Application  
RTD #4 Alarm  
0 to 4  
0 to 2  
1
1
1
1
1
1
1
1
1
1
F121  
F115  
F50  
1
0
Assign Alarm Relays (2-5)  
RTD #4 Alarm Temperature  
RTD #4 Alarm Events  
RTD #4 Trip  
1 to 4  
16  
130  
0
1 to 250  
0 to 1  
°C  
F1  
F105  
F115  
F122  
F50  
0 to 2  
0
RTD #4 Trip Voting  
Assign Trip Relays (1-4)  
RTD #4 Trip Temperature  
RTD #4 Name  
1 to 12  
0 to 3  
4
1
1 to 250  
0 to 8  
°C  
F1  
155  
_
F22  
RTD TEMPERATURE / RTD #5  
2520  
2521  
2522  
2523  
2524  
2525  
2526  
2527  
2528  
2529  
RTD #5 Application  
RTD #5 Alarm  
0 to 4  
0 to 2  
1
1
1
1
1
1
1
1
1
1
F121  
F115  
F50  
1
0
Assign Alarm Relays (2-5)  
RTD #5 Alarm Temperature  
RTD #5 Alarm Events  
RTD #5 Trip  
1 to 4  
16  
130  
0
1 to 250  
0 to 1  
°C  
F1  
F105  
F115  
F122  
F50  
0 to 2  
0
RTD #5 Trip Voting  
Assign Trip Relays (1-4)  
RTD #5 Trip Temperature  
RTD #5 Name  
1 to 12  
0 to 3  
5
1
1 to 250  
0 to 8  
°C  
F1  
155  
_
F22  
RTD TEMPERATURE / RTD #6  
2560  
2561  
2562  
2563  
2564  
2565  
RTD #6 Application  
RTD #6 Alarm  
0 to 4  
0 to 2  
1
1
1
1
1
1
F121  
F115  
F50  
1
0
Assign Alarm Relays (2-5)  
RTD #6 Alarm Temperature  
RTD #6 Alarm Events  
RTD #6 Trip  
1 to 4  
16  
130  
0
1 to 250  
0 to 1  
°C  
F1  
F105  
F115  
0 to 2  
0
1, 2, 3 See Table footnotes on page 39  
30  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 21 of 29)  
ADDR NAME  
RANGE  
1 to 12  
0 to 3  
STEP  
UNITS  
FORMAT  
F122  
F50  
DEFAULT  
2566  
2567  
2568  
2569  
RTD #6 Trip Voting  
Assign Trip Relays (1-4)  
RTD #6 Trip Temperature  
RTD #6 Name  
1
1
1
1
6
1
1 to 250  
0 to 8  
°C  
F1  
155  
_
F22  
RTD TEMPERATURE / RTD #7  
25A0  
25A1  
25A2  
25A3  
25A4  
25A5  
25A6  
25A7  
25A8  
25A9  
RTD #7 Application  
RTD #7 Alarm  
0 to 4  
0 to 2  
1
1
1
1
1
1
1
1
1
1
F121  
F115  
F50  
2
0
Assign Alarm Relays (2-5)  
RTD #7 Alarm Temperature  
RTD #7 Alarm Events  
RTD #7 Trip  
1 to 4  
16  
80  
0
1 to 250  
0 to 1  
°C  
F1  
F105  
F115  
F122  
F50  
0 to 2  
0
RTD #7 Trip Voting  
Assign Trip Relays (1-4)  
RTD #7 Trip Temperature  
RTD #7 Name  
1 to 12  
0 to 3  
7
1
1 to 250  
0 to 8  
°C  
F1  
90  
_
F22  
RTD TEMPERATURE / RTD #8  
25E0  
25E1  
25E2  
25E3  
25E4  
25E5  
25E6  
25E7  
25E8  
25E9  
RTD #8 Application  
RTD #8 Alarm  
0 to 4  
0 to 2  
1
1
1
1
1
1
1
1
1
1
F121  
F115  
F50  
2
0
Assign Alarm Relays (2-5)  
RTD #8 Alarm Temperature  
RTD #8 Alarm Events  
RTD #8 Trip  
1 to 4  
16  
80  
0
1 to 250  
0 to 1  
°C  
F1  
F105  
F115  
F122  
F50  
0 to 2  
0
RTD #8 Trip Voting  
Assign Trip Relays (1-4)  
RTD #8 Trip Temperature  
RTD #8 Name  
1 to 12  
0 to 3  
8
1
1 to 250  
0 to 8  
°C  
F1  
90  
_
F22  
RTD TEMPERATURE / RTD #9  
2620  
2621  
2622  
2623  
2624  
2625  
2626  
2627  
2628  
2629  
RTD #9 Application  
RTD #9 Alarm  
0 to 4  
0 to 2  
1
1
1
1
1
1
1
1
1
1
F121  
F115  
F50  
2
0
Assign Alarm Relays (2-5)  
RTD #9 Alarm Temperature  
RTD #9 Alarm Events  
RTD #9 Trip  
1 to 4  
16  
80  
0
1 to 250  
0 to 1  
°C  
F1  
F105  
F115  
F122  
F50  
0 to 2  
0
RTD #9 Trip Voting  
Assign Trip Relays (1-4)  
RTD #9 Trip Temperature  
RTD #9 Name  
1 to 12  
0 to 3  
9
1
1 to 250  
0 to 8  
°C  
F1  
90  
_
F22  
RTD TEMPERATURE / RTD #10  
2660  
2661  
2662  
2663  
2664  
2665  
2666  
2667  
2668  
2669  
RTD #10 Application  
RTD #10 Alarm  
0 to 4  
0 to 2  
1
1
1
1
1
1
1
1
1
1
F121  
F115  
F50  
2
0
Assign Alarm Relays (2-5)  
RTD #10 Alarm Temperature  
RTD #10 Alarm Events  
RTD #10 Trip  
1 to 4  
16  
80  
0
1 to 250  
0 to 1  
°C  
F1  
F105  
F115  
F122  
F50  
0 to 2  
0
RTD #10 Trip Voting  
Assign Trip Relays (1-4)  
RTD #10 Trip Temperature  
RTD #10 Name  
1 to 12  
0 to 3  
10  
1
1 to 250  
0 to 8  
°C  
F1  
90  
_
F22  
RTD TEMPERATURE / RTD #11  
26A0  
26A1  
26A2  
26A3  
RTD #11 Application  
0 to 4  
0 to 2  
1
1
1
1
F121  
F115  
F50  
F1  
4
0
RTD #11 Alarm  
Assign Alarm Relays (2-5)  
RTD #11 Alarm Temperature  
1 to 4  
16  
80  
1 to 250  
°C  
1, 2, 3 See Table footnotes on page 39  
31  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 22 of 29)  
ADDR NAME  
RANGE  
0 to 1  
STEP  
UNITS  
FORMAT  
F105  
F115  
F122  
F50  
DEFAULT  
26A4  
26A5  
26A6  
26A7  
26A8  
26A9  
RTD #11 Alarm Events  
RTD #11 Trip  
1
1
1
1
1
1
0
0
0 to 2  
RTD #11 Trip Voting  
Assign Trip Relays (1-4)  
RTD #11 Trip Temperature  
RTD #11 Name  
1 to 12  
0 to 3  
11  
1
1 to 250  
0 to 8  
°C  
F1  
90  
_
F22  
RTD TEMPERATURE / RTD #12  
26E0  
26E1  
26E2  
26E3  
26E4  
26E5  
26E6  
26E7  
26E8  
26E9  
RTD #12 Application  
RTD #12 Alarm  
0 to 4  
0 to 2  
1
1
1
1
1
1
1
1
1
1
F121  
F115  
F50  
3
0
Assign Alarm Relays (2-5)  
RTD #12 Alarm Temperature  
RTD #12 Alarm Events  
RTD #12 Trip  
1 to 4  
16  
60  
0
1 to 250  
0 to 1  
°C  
F1  
F105  
F115  
F122  
F50  
0 to 2  
0
RTD #12 Trip Voting  
Assign Trip Relays (1-4)  
RTD #12 Trip Temperature  
RTD #12 Name  
1 to 12  
0 to 3  
12  
1
1 to 250  
0 to 8  
°C  
F1  
80  
_
F22  
RTD TEMPERATURE / OPEN RTD SENSOR  
2720  
2721  
2722  
Open RTD Sensor Alarm  
0 to 2  
1 to 4  
0 to 1  
1
1
1
F115  
F50  
0
16  
0
Assign Alarm Relays (2-5)  
Open RTD Sensor Alarm Events  
F105  
RTD TEMPERATURE / RTD SHORT/LOW TEMPERATURE  
2740  
2741  
2742  
RTD Short/Low Temperature Alarm  
Assign Alarm Relays (2-5)  
0 to 2  
1 to 4  
0 to 1  
1
1
1
F115  
F50  
0
16  
0
RTD Short/Low Temperature Alarm Events  
F105  
THERMAL MODEL / MODEL SETUP  
2800  
2801  
2802  
2803  
2804  
2805  
2806  
2807  
2808  
2809  
280A  
280B  
280C  
280E  
2810  
2812  
2814  
2816  
2818  
281A  
281C  
281E  
2820  
2822  
2824  
2826  
2828  
Enable Thermal Model  
0 to 1  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
F103  
F3  
0
101  
0
Overload Pickup Level  
101 to 125  
0 to 12  
× FLA  
Unbalance Bias K Factor  
Cool Time Constant Online  
Cool Time Constant Offline  
Hot/Cold Safe Stall Ratio  
Enable RTD Biasing  
min  
min  
F1  
0 to 500  
F1  
15  
30  
100  
0
0 to 500  
F1  
1 to 100  
F3  
0 to 1  
F103  
F1  
RTD Bias Minimum  
0 to 250  
°C  
°C  
°C  
40  
130  
155  
0
RTD Bias Center Point  
0 to 250  
F1  
RTD Bias Maximum  
0 to 250  
F1  
Select Curve Style  
0 to 2  
F142  
F1  
Standard Overload Curve Number  
Time to Trip at 1.01 × FLA  
Time to Trip at 1.05 × FLA  
Time to Trip at 1.10 × FLA  
Time to Trip at 1.20 × FLA  
Time to Trip at 1.30 × FLA  
Time to Trip at 1.40 × FLA  
Time to Trip at 1.50 × FLA  
Time to Trip at 1.75 × FLA  
Time to Trip at 2.00 × FLA  
Time to Trip at 2.25 × FLA  
Time to Trip at 2.50 × FLA  
Time to Trip at 2.75 × FLA  
Time to Trip at 3.00 × FLA  
Time to Trip at 3.25 × FLA  
Time to Trip at 3.50 × FLA  
1 to 15  
4
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
s
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
5
s
5
s
5
s
5
s
5
s
5
s
5
s
5
s
5
s
5
s
5
s
5
s
5
s
5
s
5
1, 2, 3 See Table footnotes on page 39  
32  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 23 of 29)  
ADDR NAME  
RANGE  
STEP  
1
UNITS  
FORMAT  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F10  
F1  
DEFAULT  
282A  
282C  
282E  
2830  
2832  
2834  
2836  
2838  
283A  
283C  
283E  
2840  
2842  
2844  
2846  
2848  
2849  
284A  
284B  
284C  
Time to Trip at 3.75 × FLA  
Time to Trip at 4.00 × FLA  
Time to Trip at 4.25 × FLA  
Time to Trip at 4.50 × FLA  
Time to Trip at 4.75 × FLA  
Time to Trip at 5.00 × FLA  
Time to Trip at 5.50 × FLA  
Time to Trip at 6.00 × FLA  
Time to Trip at 6.50 × FLA  
Time to Trip at 7.00 × FLA  
Time to Trip at 7.50 × FLA  
Time to Trip at 8.00 × FLA  
Time to Trip at 10.0 × FLA  
Time to Trip at 15.0 × FLA  
Time to Trip at 20.0 × FLA  
Minimum Allowable Voltage  
Stall Current at Minimum Voltage  
Safe Stall Time at Minimum Voltage  
Acceleration Intersect at Minimum Voltage  
Stall Current at 100% Voltage  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
5 to 999999  
70 to 95  
s
5
5
1
s
1
s
5
1
s
5
1
s
5
1
s
5
1
s
5
1
s
5
1
s
5
1
s
5
1
s
5
1
s
5
1
s
s
5
1
5
1
s
5
1
%
80  
480  
200  
380  
600  
100  
500  
200 to 1500  
5 to 9999  
1
× FLA  
s
F3  
1
F2  
200 to 1500  
200 to 1500  
5 to 9999  
1
× FLA  
× FLA  
s
F3  
1
F3  
284D Safe Stall Time at 100% Voltage  
284E Acceleration Intersect at 100% Voltage  
THERMAL MODEL / THERMAL ELEMENTS  
1
F2  
200 to 1500  
1
× FLA  
F3  
2900  
2901  
2902  
2903  
2904  
2905  
Thermal Model Alarm  
Assign Alarm Relays (2-5)  
Thermal Alarm Level  
0 to 2  
1 to 4  
1
1
1
1
1
1
F115  
F50  
0
16  
75  
0
10 to 100  
0 to 1  
%Used  
F1  
Thermal Model Alarm Events  
Thermal Model Trip  
F105  
F115  
F50  
0 to 2  
0
Assign Trip Relays (1-4)  
0 to 3  
1
MONITORING / TRIP COUNTER  
2A00  
2A01  
2A02  
2A03  
Trip Counter Alarm  
0 to 2  
1 to 4  
1
1
1
1
F115  
F50  
F1  
0
16  
25  
0
Assign Alarm Relays (2-5)  
Trip Counter Alarm Level  
Trip Counter Alarm Events  
1 to 50000  
0 to 1  
Trips  
F105  
MONITORING / BREAKER FAILURE  
2A20  
2A21  
2A22  
2A23  
2A24  
Breaker Failure Alarm  
0 to 2  
1 to 4  
1
1
F115  
F50  
F3  
0
16  
Assign Alarm Relays (2-5)  
Breaker Failure Level  
5 to 2000  
10 to 1000  
0 to 1  
1
× CT  
ms  
100  
100  
0
Breaker Failure Delay  
10  
1
F1  
Breaker Failure Alarm Events  
F105  
MONITORING / TRIP COIL MONITOR  
2A30  
2A31  
2A32  
Trip Coil Monitor Alarm  
0 to 2  
1 to 4  
0 to 1  
1
1
1
F115  
F50  
0
16  
0
Assign Alarm Relays (2-5)  
Trip Coil Monitor Alarm Events  
F105  
MONITORING / VT FUSE FAILURE  
2A50  
2A51  
2A52  
VT Fuse Failure Alarm  
0 to 2  
1 to 4  
0 to 1  
1
1
1
F115  
F50  
0
16  
0
Assign Alarm Relays (2-5)  
VT Fuse Failure Alarm Events  
F105  
MONITORING / CURRENT DEMAND  
2A60  
2A61  
2A62  
2A63  
Current Demand Period  
Current Demand Alarm  
Assign Alarm Relays (2-5)  
Current Demand Limit  
5 to 90  
0 to 2  
1
1
1
1
min  
A
F1  
F115  
F50  
F14  
15  
0
1 to 4  
A
16  
125  
10 to 2000  
× FLA  
1, 2, 3 See Table footnotes on page 39  
33  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 24 of 29)  
ADDR NAME  
RANGE  
STEP  
UNITS  
FORMAT  
DEFAULT  
2A65  
Current Demand Alarm Events  
0 to 1  
1
A
F105  
0
MONITORING / MW DEMAND  
2A70  
2A71  
2A72  
2A73  
2A75  
MW Demand Period  
5 to 90  
0 to 2  
1
1
1
1
1
min  
F1  
15  
0
MW Demand Alarm  
F115  
F50  
Assign Alarm Relays (2-5)  
MW Demand Limit  
1 to 4  
× Rated  
16  
125  
0
10 to 200  
0 to 1  
F14  
MW Demand Alarm Events  
F105  
MONITORING / Mvar DEMAND  
2A80  
2A81  
2A82  
2A83  
2A85  
Mvar Demand Period  
5 to 90  
0 to 2  
1
1
1
1
1
min  
F1  
15  
0
Mvar Demand Alarm  
F115  
F50  
Assign Alarm Relays (2-5)  
Mvar Demand Limit  
1 to 4  
× Rated  
16  
125  
0
10 to 200  
0 to 1  
F14  
Mvar Demand Alarm Events  
F105  
MONITORING / MVA DEMAND  
2A90  
2A91  
2A92  
2A93  
2A95  
MVA Demand Period  
5 to 90  
0 to 2  
1
1
1
1
1
min  
F1  
15  
0
MVA Demand Alarm  
F115  
F50  
Assign Alarm Relays (2-5)  
MVA Demand Limit  
1 to 4  
× Rated  
16  
125  
0
10 to 200  
0 to 1  
F14  
MVA Demand Alarm Events  
F105  
MONITORING / PULSE OUTPUT  
2AB0 Positive kWh Pulse Output Relays (2-5)  
2AB1 Positive kWh Pulse Output Interval  
2AB2 Positive kvarh Pulse Output Relays (2-5)  
2AB3 Positive kvarh Pulse Output Interval  
2AB4 Negative kvarh Pulse Output Relays (2-5)  
2AB5 Negative kvarh Pulse Output Interval  
2AB6 Pulse Width  
1 to 4  
1 to 50000  
1 to 4  
1
1
1
1
1
1
1
F50  
F1  
0
10  
0
F50  
F1  
1 to 50000  
1 to 4  
10  
0
F50  
F1  
1 to 50000  
200 to 1000  
10  
200  
F1  
MONITORING / RUNNING HOUR SETUP  
2AC0 Initial Generator Running Hours  
2AC2 Generator Running Hour Alarm  
2AC3 Assign Alarm Relays (2-5)  
0 to 999999  
0 to 2  
1
1
1
1
h
h
F12  
F115  
F50  
0
0
1 to 4  
16  
2AC4 Generator Running Hour Limit  
2AC6 Reserved  
1 to 1000000  
F12  
1000  
ANALOG INPUT/OUTPUT / ANALOG OUTPUT 1  
2B00  
ANALOG INPUT/OUTPUT / ANALOG OUTPUT 2  
2B01 Analog Output 2  
ANALOG INPUT/OUTPUT / ANALOG OUTPUT 3  
2B02 Analog Output 3  
ANALOG INPUT/OUTPUT / ANALOG OUTPUT 4  
2B03 Analog Output 4  
ANALOG INPUT/OUTPUT / ANALOG OUTPUTS  
Analog Output 1  
0 to 42  
0 to 42  
0 to 42  
0 to 42  
1
1
1
1
F127  
F127  
F127  
F127  
0
0
0
0
2B04  
2B05  
2B06  
2B07  
2B08  
2B09  
Ia Output Current Minimum  
Ia Output Current Maximum  
Ib Output Current Minimum  
Ib Output Current Maximum  
Ic Output Current Minimum  
Ic Output Current Maximum  
0 to 2000  
0 to 2000  
0 to 2000  
0 to 2000  
0 to 2000  
0 to 2000  
0 to 2000  
0 to 2000  
0 to 2000  
0 to 2000  
0 to 2000  
1
1
1
1
1
1
1
1
1
1
1
× FLA  
× FLA  
× FLA  
× FLA  
× FLA  
× FLA  
× FLA  
× FLA  
%FLA  
%FLA  
× FLA  
F3  
F3  
F3  
F3  
F3  
F3  
F3  
F3  
F1  
F1  
F3  
0
125  
0
125  
0
125  
0
2B0A Average Output Current Minimum  
2B0B Average Output Current Maximum  
2B0C Negative Sequence Current Minimum  
2B0D Negative Sequence Current Maximum  
125  
0
100  
0
2B0E  
Averaged Generator Load Minimum  
1, 2, 3 See Table footnotes on page 39  
34  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 25 of 29)  
ADDR NAME  
RANGE  
0 to 2000  
STEP  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
UNITS  
× FLA  
°C  
FORMAT  
F3  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F3  
F3  
F3  
F3  
F3  
F3  
F3  
F3  
F3  
F3  
F3  
F3  
F6  
F6  
F6  
F6  
F6  
F6  
F3  
F3  
F12  
F12  
DEFAULT  
125  
0
2B0F  
2B10  
2B11  
2B12  
2B13  
2B14  
2B15  
2B16  
2B17  
2B18  
2B19  
Averaged Generator Load Maximum  
Hottest Stator RTD Minimum  
Hottest Stator RTD Maximum  
Hottest Bearing RTD Minimum  
Hottest Bearing RTD Maximum  
Ambient RTD Minimum  
Ambient RTD Maximum  
RTD #1 Minimum  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
0 to 150  
°C  
200  
0
°C  
°C  
200  
0
°C  
°C  
70  
°C  
0
RTD #1 Maximum  
°C  
200  
0
RTD #2 Minimum  
°C  
RTD #2 Maximum  
°C  
200  
0
2B1A RTD #3 Minimum  
2B1B RTD #3 Maximum  
2B1C RTD #4 Minimum  
2B1D RTD #4 Maximum  
°C  
°C  
200  
0
°C  
°C  
200  
0
2B1E  
2B1F  
2B20  
2B21  
2B22  
2B23  
2B24  
2B25  
2B26  
2B27  
2B28  
2B29  
RTD #5 Minimum  
RTD #5 Maximum  
RTD #6 Minimum  
RTD #6 Maximum  
RTD #7 Minimum  
RTD #7 Maximum  
RTD #8 Minimum  
RTD #8 Maximum  
RTD #9 Minimum  
RTD #9 Maximum  
RTD #10 Minimum  
RTD #10 Maximum  
°C  
°C  
200  
0
°C  
°C  
200  
0
°C  
°C  
200  
0
°C  
°C  
200  
0
°C  
°C  
200  
0
°C  
°C  
200  
0
2B2A RTD #11 Minimum  
2B2B RTD #11 Maximum  
2B2C RTD #12 Minimum  
2B2D RTD #12 Maximum  
°C  
°C  
200  
0
°C  
°C  
200  
0
2B2E  
2B2F  
2B30  
2B31  
2B32  
2B33  
2B34  
2B35  
2B36  
2B37  
2B38  
2B39  
AB Voltage Minimum  
AB Voltage Maximum  
BC Voltage Minimum  
BC Voltage Maximum  
CA Voltage Minimum  
CA Voltage Maximum  
Average Voltage Minimum  
Average Voltage Maximum  
Volts/Hertz Minimum  
Volts/Hertz Maximum  
Frequency Minimum  
Frequency Maximum  
× Rated  
× Rated  
× Rated  
× Rated  
× Rated  
× Rated  
× Rated  
× Rated  
× Rated  
× Rated  
Hz  
0 to 150  
125  
0
0 to 150  
0 to 150  
125  
0
0 to 150  
0 to 150  
125  
0
0 to 150  
0 to 150  
125  
0
0 to 200  
0 to 200  
150  
5900  
6100  
80  
0 to 9000  
0 to 9000  
Hz  
2B3C Power Factor Minimum  
2B3D Power Factor Maximum  
–99 to 100  
–99 to 100  
–200 to 200  
–200 to 200  
–200 to 200  
–200 to 200  
0 to 200  
–80  
0
2B3E  
2B3F  
2B40  
2B41  
2B42  
2B43  
2B44  
2B46  
Reactive Power Minimum  
Reactive Power Maximum  
Real Power (MW) Minimum  
Real Power (MW) Maximum  
Apparent Power Minimum  
Apparent Power Maximum  
Analog Input 1 Minimum  
Analog Input 1 Maximum  
× Rated  
× Rated  
× Rated  
× Rated  
× Rated  
× Rated  
Units  
Units  
125  
0
125  
0
0 to 200  
125  
0
–50000 to 50000  
–50000 to 50000  
50000  
1, 2, 3 See Table footnotes on page 39  
35  
GE Multilin  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 26 of 29)  
ADDR NAME  
RANGE  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
0 to 7200  
STEP  
1
UNITS  
Units  
Units  
Units  
Units  
Units  
Units  
RPM  
FORMAT  
F12  
F12  
F12  
F12  
F12  
F12  
F1  
DEFAULT  
2B48  
Analog Input 2 Minimum  
0
50000  
0
2B4A Analog Input 2 Maximum  
2B4C Analog Input 3 Minimum  
1
1
2B4E  
2B50  
2B52  
2B54  
2B55  
2B56  
2B57  
2B58  
Analog Input 3 Maximum  
1
50000  
0
Analog Input 4 Minimum  
1
Analog Input 4 Maximum  
1
50000  
3500  
3700  
0
Tachometer Minimum  
1
Tachometer Maximum  
0 to 7200  
1
RPM  
F1  
Thermal Capacity Used Minimum  
Thermal Capacity Used Maximum  
Neutral Voltage Third Harmonic Minimum  
0 to 100  
1
%
F1  
0 to 100  
1
%
F1  
100  
0
0 to 250000  
0 to 250000  
0 to 2000  
1
Volts  
F10  
F10  
F3  
2B5A Neutral Voltage Third Harmonic Maximum  
2B5C Current Demand Minimum  
1
Volts  
450  
0
1
× FLA  
× FLA  
× Rated  
× Rated  
× Rated  
× Rated  
× Rated  
× Rated  
2B5D Current Demand Maximum  
0 to 2000  
1
F3  
125  
0
2B5E  
2B5F  
2B60  
2B61  
2B62  
2B63  
Mvar Demand Minimum  
Mvar Demand Maximum  
MW Demand Minimum  
MW Demand Maximum  
MVA Demand Minimum  
MVA Demand Maximum  
0 to 200  
1
F3  
0 to 200  
1
F3  
125  
0
0 to 200  
1
F3  
0 to 200  
1
F3  
125  
0
0 to 200  
1
F3  
0 to 200  
1
F3  
125  
ANALOG INPUT/OUTPUT / ANALOG INPUT 1  
2C00  
2C05  
2C08  
Analog Input 1  
0 to 3  
0 to 6  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
F129  
F22  
F12  
F12  
F1  
0
_
Analog Input 1 Units  
Analog Input 1 Minimum  
–50000 to 50000  
–50000 to 50000  
0 to 5000  
0 to 2  
Units  
0
2C0A Analog Input 1 Maximum  
2C0C Block Analog Input 1 From Online  
2C0D Analog Input 1 Alarm  
Units  
100  
0
s
F115  
F50  
F12  
F130  
F2  
0
2C0E  
2C0F  
2C11  
2C12  
2C13  
2C14  
2C15  
2C16  
2C18  
2C19  
Assign Alarm Relays (2-5)  
Analog Input 1 Alarm Level  
Analog Input 1 Alarm Pickup  
Analog Input 1 Alarm Delay  
Analog Input 1 Alarm Events  
Analog Input 1 Trip  
1 to 4  
16  
10  
0
–50000 to 50000  
0 to 1  
Units  
1 to 3000  
0 to 1  
s
1
F105  
F115  
F50  
F12  
F130  
F2  
0
0 to 2  
0
Assign Trip Relays (1-4)  
Analog Input 1 Trip Level  
Analog Input 1 Trip Pickup  
Analog Input 1 Trip Delay  
0 to 3  
1
–50000 to 50000  
0 to 1  
Units  
20  
0
s
1 to 3000  
0 to 12  
1
2C1A Analog Input 1 Name  
F22  
_
ANALOG INPUT/OUTPUT / ANALOG INPUT 2  
2C40  
2C45  
2C48  
Analog Input 2  
0 to 3  
0 to 6  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
F129  
F22  
F12  
F12  
F1  
0
_
Analog Input 2 Units  
Analog Input 2 Minimum  
–50000 to 50000  
–50000 to 50000  
0 to 5000  
0 to 2  
Units  
0
2C4A Analog Input 2 Maximum  
2C4C Block Analog Input 2 From Online  
2C4D Analog Input 2 Alarm  
Units  
100  
0
s
F115  
F50  
F12  
F130  
F2  
0
2C4E  
2C4F  
2C51  
2C52  
2C53  
2C54  
2C55  
2C56  
Assign Alarm Relays (2-5)  
Analog Input 2 Alarm Level  
Analog Input 2 Alarm Pickup  
Analog Input 2 Alarm Delay  
Analog Input 2 Alarm Events  
Analog Input 2 Trip  
1 to 4  
16  
10  
0
–50000 to 50000  
0 to 1  
Units  
1 to 3000  
0 to 1  
s
1
F105  
F115  
F50  
F12  
0
0 to 2  
0
Assign Trip Relays (1-4)  
Analog Input 2 Trip Level  
0 to 3  
1
–50000 to 50000  
Units  
20  
1, 2, 3 See Table footnotes on page 39  
36  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 27 of 29)  
ADDR NAME  
RANGE  
0 to 1  
STEP  
UNITS  
FORMAT  
F130  
F2  
DEFAULT  
2C58  
2C59  
Analog Input 2 Trip Pickup  
Analog Input 2 Trip Delay  
1
1
1
s
0
1
_
1 to 3000  
0 to 12  
2C5A Analog Input 2 Name  
F22  
ANALOG INPUT/OUTPUT / ANALOG INPUT 3  
2C80  
2C85  
2C88  
Analog Input 3  
0 to 3  
0 to 6  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
F129  
F22  
F12  
F12  
F1  
0
_
Analog Input 3 Units  
Analog Input 3 Minimum  
–50000 to 50000  
–50000 to 50000  
0 to 5000  
0 to 2  
Units  
0
2C8A Analog Input 3 Maximum  
2C8C Block Analog Input 3 From Online  
2C8D Analog Input 3 Alarm  
Units  
100  
0
s
F115  
F50  
F12  
F130  
F2  
0
2C8E  
2C8F  
2C91  
2C92  
2C93  
2C94  
2C95  
2C96  
2C98  
2C99  
Assign Alarm Relays (2-5)  
Analog Input 3 Alarm Level  
Analog Input 3 Alarm Pickup  
Analog Input 3 Alarm Delay  
Analog Input 3 Alarm Events  
Analog Input 3 Trip  
1 to 4  
16  
10  
0
–50000 to 50000  
0 to 1  
Units  
1 to 3000  
0 to 1  
s
1
F105  
F115  
F50  
F12  
F130  
F2  
0
0 to 2  
0
Assign Trip Relays (1-4)  
Analog Input 3 Trip Level  
Analog Input 3 Trip Pickup  
Analog Input 3 Trip Delay  
0 to 3  
1
–50000 to 50000  
0 to 1  
Units  
20  
0
s
1 to 3000  
0 to 12  
1
2C9A Analog Input 3 Name  
F22  
_
ANALOG INPUT/OUTPUT / ANALOG INPUT 4  
2CC0 Analog Input 4  
0 to 3  
0 to 6  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
F129  
F22  
F12  
F12  
F1  
0
_
2CC5 Analog Input 4 Units  
2CC8 Analog Input 4 Minimum  
2CCA Analog Input 4 Maximum  
2CCC Block Analog Input 4 From Online  
2CCD Analog Input 4 Alarm  
–50000 to 50000  
–50000 to 50000  
0 to 5000  
0 to 2  
Units  
0
Units  
100  
0
s
F115  
F50  
F12  
F130  
F2  
0
2CCE Assign Alarm Relays (2-5)  
1 to 4  
16  
10  
0
2CCF  
Analog Input 4 Alarm Level  
–50000 to 50000  
0 to 1  
Units  
2CD1 Analog Input 4 Alarm Pickup  
2CD2 Analog Input 4 Alarm Delay  
2CD3 Analog Input 4 Alarm Events  
2CD4 Analog Input 4 Trip  
1 to 3000  
0 to 1  
s
1
F105  
F115  
F50  
F12  
F130  
F2  
0
0 to 2  
0
2CD5 Assign Trip Relays (1-4)  
2CD6 Analog Input 4 Trip Level  
2CD8 Analog Input 4 Trip Pickup  
2CD9 Analog Input 4 Trip Delay  
2CDA Analog Input 4 Name  
0 to 3  
1
–50000 to 50000  
0 to 1  
Units  
20  
0
s
1 to 3000  
0 to 12  
1
F22  
_
489 TESTING / SIMULATION MODE  
2D00 Simulation Mode  
0 to 3  
1
1
s
F138  
F1  
0
2D01 Pre-fault To Fault Time Delay  
489 TESTING / PRE-FAULT SETUP  
2D20 Pre-Fault Iphase Output  
2D21 Pre-Fault Voltages Phase-N  
2D22 Pre-Fault Current Lags Voltage  
2D23 Pre-Fault Iphase Neutral  
2D24 Pre-Fault Current Ground  
2D25 Pre-Fault Voltage Neutral  
2D26 Pre-Fault Stator RTD Temp  
2D27 Pre-Fault Bearing RTD Temp  
2D28 Pre-Fault Other RTD Temp  
2D29 Pre-Fault Ambient RTD Temp  
1, 2, 3 See Table footnotes on page 39  
0 to 300  
15  
0 to 2000  
0 to 150  
1
1
1
1
1
1
1
1
1
1
× CT  
× Rated  
°
F3  
F3  
F1  
F3  
F3  
F2  
F4  
F4  
F4  
F4  
0
100  
0
0 to 359  
0 to 2000  
0 to 2000  
0 to 1000  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
× CT  
× CT  
Volts  
°C  
0
0
0
40  
40  
40  
40  
°C  
°C  
°C  
37  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 28 of 29)  
ADDR NAME  
RANGE  
50 to 900  
0 to 100  
STEP  
UNITS  
Hz  
%
FORMAT  
DEFAULT  
2D2A Pre-Fault System Frequency  
2D2B Pre-Fault Analog Input 1  
2D2C Pre-Fault Analog Input 2  
2D2D Pre-Fault Analog Input 3  
2D2E Pre-Fault Analog Input 4  
2D4C Pre-Fault Stator RTD Temp  
2D4D Pre-Fault Bearing RTD Temp  
2D4E Pre-Fault Other RTD Temp  
2D4F Pre-Fault Ambient RTD Temp  
489 TESTING / FAULT SETUP  
2D80 Fault Iphase Output  
1
1
1
1
1
1
1
1
1
F2  
F1  
F1  
F1  
F1  
F4  
F4  
F4  
F4  
600  
0
0 to 100  
%
0
0 to 100  
%
0
0 to 100  
%
0
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
°F  
40  
40  
40  
40  
°F  
°F  
°F  
0 to 2000  
0 to 150  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
× CT  
× Rated  
°
F3  
F3  
F1  
F3  
F3  
F2  
F4  
F4  
F4  
F4  
F2  
F1  
F1  
F1  
F1  
F4  
F4  
F4  
F4  
0
100  
0
2D81 Fault Voltages Phase-N  
2D82 Fault Current Lags Voltage  
2D83 Fault Iphase Neutral  
0 to 359  
0 to 2000  
0 to 2000  
0 to 1000  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
50 to 900  
0 to 100  
× CT  
× CT  
Volts  
°C  
0
2D84 Fault Current Ground  
0
2D85 Fault Voltage Neutral  
0
2D86 Fault Stator RTD Temp  
2D87 Fault Bearing RTD Temp  
2D88 Fault Other RTD Temp  
2D89 Fault Ambient RTD Temp  
2D8A Fault System Frequency  
2D8B Fault Analog Input 1  
40  
40  
40  
40  
600  
0
°C  
°C  
°C  
Hz  
%
2D8C Fault Analog Input 2  
0 to 100  
%
0
2D8D Fault Analog Input 3  
0 to 100  
%
0
2D8E Fault Analog Input 4  
0 to 100  
%
0
2DBC Fault Stator RTD Temp  
2DBD Fault Bearing RTD Temp  
2DBE Fault Other RTD Temp  
2DBF Fault Ambient RTD Temp  
489 TESTING / TEST OUTPUT RELAYS  
2DE0 Force Operation Of Relays  
489 TESTING / TEST ANALOG OUTPUT  
2DF0 Force Analog Outputs Function  
2DF1 Analog Output 1 Forced Value  
2DF2 Analog Output 2 Forced Value  
2DF3 Analog Output 3 Forced Value  
2DF4 Analog Output 4 Forced Value  
EVENT RECORDER / GENERAL  
–50 to 250  
–50 to 250  
–50 to 250  
–50 to 250  
°F  
40  
40  
40  
40  
°F  
°F  
°F  
0 to 8  
1
F139  
0
0 to 1  
1
1
1
1
1
F126  
F1  
0
0
0
0
0
0 to 100  
0 to 100  
0 to 100  
0 to 100  
%
%
%
%
F1  
F1  
F1  
3000  
3002  
3003  
Event Recorder Last Reset Date (2 Words)  
Total Number Of Events Since Last Clear  
Event Record Selector  
N/A  
N/A  
1
N/A  
N/A  
F18  
F1  
N/A  
N/A  
0
0 to 65535  
0 to 65535  
1
F1  
EVENT RECORDER / SELECTED EVENT  
3004  
3005  
3007  
3009  
300A  
300C  
300E  
3010  
3012  
3014  
3016  
Cause Of Event  
0 to 139  
N/A  
1
N/A  
N/A  
1
F134  
F19  
F18  
F1  
0
N/A  
N/A  
0
Time Of Event (2 Words)  
Date Of Event (2 Words)  
Tachometer  
N/A  
N/A  
N/A  
0 to 7200  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 999999  
0 to 2000  
RPM  
Phase A Current  
1
Amps  
Amps  
Amps  
Amps  
Amps  
Amps  
%FLA  
F12  
F12  
F12  
F12  
F12  
F12  
F1  
0
Phase B Current  
1
0
Phase C Current  
1
0
Phase A Differential Current  
Phase B Differential Current  
Phase C Differential Current  
Neg. Seq. Current  
1
0
1
0
1
0
1
0
1, 2, 3 See Table footnotes on page 39  
38  
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489  
Modbus Memory Map  
Communications Guide  
Table 1: 489 Memory Map (Sheet 29 of 29)  
ADDR NAME  
RANGE  
0 to 20000000  
0 to 50000  
STEP  
1
UNITS  
A
FORMAT  
F14  
F1  
DEFAULT  
3017  
3019  
301A  
301B  
301C  
Ground Current  
A-B Voltage  
B-C Voltage  
C-A Voltage  
Frequency  
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Volts  
Volts  
Volts  
Hz  
0 to 50000  
1
F1  
0 to 50000  
1
F1  
0 to 12000  
1
F3  
301D Active Group  
0 to 1  
1
F1  
301F  
3021  
3023  
3025  
3026  
3027  
3028  
3029  
302A  
302B  
302C  
Real Power (MW)  
–2000000 to 2000000  
–2000000 to 2000000  
0 to 2000000  
1 to 12  
1
MW  
Mar  
MVA  
F13  
F13  
F13  
F1  
Reactive Power Mvar  
1
Apparent Power MVA  
1
Hottest Stator RTD Number  
Hottest Stator RTD Temperature  
Hottest Bearing RTD Number  
Hottest Bearing RTD Temperature  
Hottest Other RTD Number  
Hottest Other RTD Temperature  
Hottest Ambient RTD Number  
Hottest Ambient RTD Temperature  
1
–50 to 250  
1
°C  
F4  
1 to 12  
1
F1  
–50 to 250  
1
°C  
F4  
1 to 12  
1
F1  
–50 to 250  
1
°C  
F4  
1 to 12  
1
F1  
–50 to 250  
1
°C  
F4  
302D Analog Input 1  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
–50000 to 50000  
0 to 999999  
0 to 999999  
0 to 999999  
–50 to 250  
1
Units  
Units  
Units  
Units  
Amps  
Amps  
Amps  
°F  
F12  
F12  
F12  
F12  
F12  
F12  
F12  
F4  
302F  
3031  
3033  
3035  
3037  
3039  
30E0  
30E1  
30E2  
30E3  
30E5  
30E7  
30E9  
30EA  
Analog Input 2  
1
Analog Input 3  
1
Analog Input 4  
1
Phase A Neutral Current  
Phase B Neutral Current  
Phase C Neutral Current  
Hottest Stator RTD Temperature  
Hottest Bearing RTD Temperature  
Hottest Other RTD Temperature  
Hottest Ambient RTD Temperature  
Neutral Voltage (Fundamental)  
Neutral Voltage (3rd Harmonic)  
Vab/Iab  
1
1
1
1
–50 to 250  
1
°F  
F4  
–50 to 250  
1
°F  
F4  
–50 to 250  
1
°F  
F4  
0 to 250000  
0 to 250000  
0 to 65535  
1
Volts  
Volts  
ohms s  
°
F10  
F10  
F1  
1
1
Vab/Iab Angle  
0 to 359  
1
F1  
WAVEFORM MEMORY SETUP  
30F0  
30F2  
30F4  
30F5  
30F6  
30F7  
30F8  
30F9  
Waveform Memory Trigger Date  
N/A  
N/A  
N/A  
1
N/A  
N/A  
Hz  
F18  
F19  
F3  
N/A  
N/A  
0
Waveform Memory Trigger Time  
N/A  
Frequency During Trace Acquisition  
Waveform Memory Channel Selector (Holding Register)  
Waveform Trigger Selector  
0 to 12000  
0 to 9  
1
N/A  
N/A  
N/A  
N/A  
N/A  
F214  
F1  
0
1 to 65535  
0 to 139  
1 to 768  
0 to 65535  
1
0
Waveform Trigger Cause (Read-only)  
Number of Samples per Waveform Capture  
Number of Waveform Captures Taken  
1
F134  
F1  
0
1
168  
0
1
F1  
WAVEFORM MEMORY SAMPLES  
3100  
3400  
First Waveform Memory Sample  
Last Waveform Memory Sample  
–32767 to 32767  
–32767 to 32767  
1
1
N/A  
N/A  
F4  
F4  
0
0
1, 2, 3 See Table footnotes on page 39  
1.  
2.  
3.  
A Value of 65535 indicates ‘Never’  
A value of 0xFFFF indicates “no measurable value”.  
Maximum value turns feature ‘Off’  
39  
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489  
Modbus Memory Map  
Communications Guide  
Memory Map Data  
Formats  
The data formats used in the Modbus memory map are shown below.  
Table 2: Data Formats (Sheet 1 of 12) Table 2: Data Formats (Sheet 2 of 12)  
CODE TYPE  
DEFINITION  
UNSIGNED VALUE  
CODE TYPE  
DEFINITION  
F1  
16 bits  
F15  
16 bits  
HARDWARE REVISION  
Example: 1234 stored as 1234  
0000 0000 1 = A  
0000 0001  
F2  
16 bits  
UNSIGNED VALUE,  
1 DECIMAL PLACE  
0000 0000 2 = B  
0000 0010  
Example: 123.4 stored as 1234  
...  
...  
F3  
F4  
16 bits  
UNSIGNED VALUE,  
2 DECIMAL PLACES  
0000 0000 26 = Z  
0001 1010  
Example: 12.34 stored as 1234  
F16  
F18  
16 bits  
SOFTWARE REVISION  
16 bits  
2’s COMPLEMENT  
SIGNED VALUE  
1111 1111 Major Revision Number  
xxxx xxxx  
0 to 9 in steps of 1  
Example: –1234 stored as –1234 (i.e.  
64302)  
xxxx xxxx  
Minor Revision Number  
1111 1111 (two BCD digits)  
00 to 99 in steps of 1  
F5  
16 bits  
2’s COMPLEMENT  
SIGNED VALUE  
1 DECIMAL PLACES  
Example: Revision 2.30 stored as  
0230 hex  
Example: -123.4 stored as -1234 (i.e.  
64302)  
32 bits  
1st byte  
2nd byte  
DATE (MM/DD/YYYY)  
Month (1 to 12)  
F6  
16 bits  
2’s COMPLEMENT  
SIGNED VALUE  
2 DECIMAL PLACES  
Day (1 to 31)  
3rd & 4th  
byte  
Year (1995 to 2094)  
Example: –12.34 stored as –1234 (i.e.  
64302)  
Example: Feb. 20, 1996 stored as  
34867148 (i.e. 1st word: 0214, 2nd  
word 07CC)  
F10  
32 bits  
2’s COMPLEMENT  
SIGNED LONG VALUE  
1 DECIMAL PLACE  
F19  
32 bits  
1st byte  
2nd byte  
3rd byte  
4th byte  
TIME (HH:MM:SS:hh)  
Hours (0 to 23)  
1st 16 bits High Order Word of Long  
Value  
2nd 16 bits Low Order Word of Long  
Value  
Minutes (0 to 59)  
Seconds (0 to 59)  
Example: –12345.6 stored as  
–123456 (i.e. 1st word: FFFE hex, 2nd  
word: 1DC0 hex)  
Hundreds of seconds (0  
to 99)  
Example: 2:05pm stored as  
235208704 (i.e. 1st word: 0E05, 2nd  
word 0000)  
F12  
32 bits  
2’s COMPLEMENT  
SIGNED LONG VALUE  
1st 16 bits High Order Word of Long  
Value  
F20  
F22  
32 bits  
2’s COMPLEMENT  
SIGNED LONG VALUE  
2nd 16 bits Low Order Word of Long  
Value  
1st 16 bits High Order Word of Long  
Value  
Example: -123456 stored as -123456  
(i.e. 1st word: FFFE hex, 2nd word:  
1DC0 hex)  
2nd 16 bits Low Order Word of Long  
Value  
Note: -1 means “Never”  
F13  
32 bits  
2’s COMPLEMENT  
SIGNED LONG VALUE,  
3 DECIMAL PLACES  
16 bits  
TWO 8-BIT  
CHARACTERS  
PACKED INTO 16-BIT  
UNSIGNED  
1st 16 bits High Order Word of Long  
Value  
MSB  
LSB  
First Character  
2nd 16 bits Low Order Word of Long  
Value  
Second Character  
Example: -123.456 stored as -123456  
(i.e. 1st word: FFFE hex, 2nd word:  
1DC0 hex)  
Example: String ‘AB’ stored as 4142  
hex.  
F24  
32 bits  
TIME FORMAT FOR  
BROADCAST  
F14  
32 bits  
2’s COMPLEMENT  
SIGNED LONG VALUE,  
2 DECIMAL PLACES  
st  
1
2
3
byte  
byte  
Hours (0 to 23)  
nd  
rd  
1st 16 bits High Order Word of Long  
Value  
Minutes (0 to 59)  
th  
& 4  
Milliseconds (0 to 59999)  
Note: Clock resolution  
limited to 0.01 sec  
2nd 16 bits Low Order Word of Long  
Value  
bytes  
Example: -1234.56 stored as -123456  
(i.e. 1st word: FFFE hex, 2nd word:  
1DC0 hex)  
Example: 1:15:48:572 stored as  
st  
nd  
17808828 (i.e., 1 word 010F, 2  
word BDBC)  
40  
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Modbus Memory Map  
489  
Communications Guide  
Table 2: Data Formats (Sheet 3 of 12)  
CODE TYPE DEFINITION  
Table 2: Data Formats (Sheet 4 of 12)  
CODE TYPE  
DEFINITION  
F100 Unsigned TEMPEATUREDISPLAY  
F117 Unsigned RESET MODE  
16 bit  
UNITS  
16 bit  
integer  
integer  
0
1
Celsius  
0
1
2
All Resets  
Fahrenheit  
Remote Reset Only  
Keypad Reset Only  
FC101 Unsigned RS 485 BAUD RATE  
16 bit  
integer  
F118 Unsigned SETPOINT GROUP  
16 bit  
integer  
0
1
2
3
4
5
300 baud  
1200 baud  
2400 baud  
4800 baud  
9600 baud  
19200 baud  
0
1
Group 1  
Group 2  
F120 Unsigned RTD TYPE  
16 bit  
integer  
0
1
2
3
100 Ohm Platinum  
F102 Unsigned RS 485 PARITY  
120 Ohm Nickel  
100 Ohm Nickel  
10 Ohm Copper  
16 bit  
integer  
0
1
2
None  
Odd  
F121 Unsigned RTD APPLICATION  
16 bit  
integer  
Even  
F103 Unsigned NO/YES SELECTION  
0
1
2
3
4
None  
16 bit  
integer  
Stator  
Bearing  
Ambient  
Other  
0
1
No  
Yes  
F104 Unsigned GROUND CT TYPE  
16 bit  
integer  
F122 Unsigned RTD VOTING  
16 bit  
integer  
SELECTION  
0
1
2
3
None  
1 A Secondary  
50/0.025 Ground CT  
5 A Secondary  
1
RTD #1  
RTD #2  
RTD #3  
RTD #4  
RTD #5  
RTD #6  
RTD #7  
RTD #8  
RTD #9  
RTD #10  
RTD #11  
RTD #12  
2
3
F105 Unsigned OFF/ON SELECTION  
4
16 bit  
integer  
5
6
0
1
Off  
On  
7
8
F106 Unsigned VOLTAGE  
16 bit  
integer  
TRANSFORMER  
CONNECTION TYPE  
9
10  
11  
12  
0
1
2
None  
Open Delta  
Wye  
F123 Unsigned ALARM/TRIP STATUS  
F107 Unsigned NOMINAL FREQUENCY  
16 bit  
integer  
16 bit  
integer  
0
1
2
3
4
Not Enabled  
Inactive  
0
1
2
3
----  
60 Hz  
50 Hz  
25 Hz  
Timing Out  
Active Trip  
Latched Trip  
F109 Unsigned STARTER STATUS  
F124 Unsigned PHASE ROTATION  
16 bit  
integer  
SWITCH  
16 bit  
integer  
SELECTION  
0
1
Auxiliary A  
Auxiliary B  
0
1
2
----  
ABC  
ACB  
F115 Unsigned ALARM / TRIP TYPE  
16 bit  
integer  
SELECTION  
F126 Unsigned DISABLED / ENABLED  
16 bit  
SELECTION  
0
1
2
Off  
0
1
Disabled  
Latched  
Unlatched  
Enabled  
41  
GE Multilin  
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Table 2: Data Formats (Sheet 5 of 12)  
CODE TYPE DEFINITION  
Table 2: Data Formats (Sheet 6 of 12)  
CODE TYPE  
DEFINITION  
F127 Unsigned ANALOG OUTPUT  
F128  
ctd.  
5
IEC Curve B (BS142)  
IEC Curve C (BS142)  
IEC Short Inverse  
IAC Extremely Inverse  
IAC Very Inverse  
IAC Inverse  
16 bit  
PARAMETER  
SELECTION  
6
integer  
7
0
1
2
3
4
5
None  
8
IA Output Current  
IB Output Current  
IC Output Current  
Average Output Current  
9
10  
11  
12  
13  
IAC Short Inverse  
FlexCurve™  
Negative Sequence  
Current  
Definite Time  
6
Average Generator Load  
Hottest Stator RTD  
Hottest Bearing RTD  
Ambient RTD  
RTD #1  
FC129 Unsigned ANALOG INPUT  
16 bit  
SELECTION  
7
integer  
8
0
1
2
3
Disabled  
9
4 to 20 mA  
0 to 20 mA  
0 to 1 mA  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
RTD #2  
RTD #3  
F130 Unsigned PICKUP TYPE  
RTD #4  
16 bit  
integer  
RTD #5  
0
1
Over  
RTD #6  
Under  
RTD #7  
FC131 Unsigned INPUT SWITCH  
RTD #8  
16 bit  
integer  
STATUS  
RTD #9  
0
1
Closed  
Open  
RTD #10  
RTD #11  
F132 Unsigned TRIP COIL  
RTD #12  
16 bit  
integer  
SUPERVISION STATUS  
AB Voltage  
BC Voltage  
CA Voltage  
Average Voltage  
Volts/Hertz  
Frequency  
0
1
No Coil  
Coil  
F133 Unsigned GENERATOR STATUS  
16 bit  
integer  
0
1
2
3
4
Offline  
Offline  
Online  
Third Harmonic Neutral  
Voltage  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
Power Factor  
Overload  
Tripped  
Reactive Power (Mvar)  
Real Power (MW)  
Apparent Power (MVA)  
Analog Input 1  
Analog Input 2  
Analog Input 3  
Analog Input 4  
Tachometer  
F134 Unsigned CAUSE OF EVENT /  
16 bit  
integer  
CAUSE OF LAST TRIP  
0
No Event  
1
General Switch A Trip  
General Switch B Trip  
General Switch C Trip  
General Switch D Trip  
General Switch E Trip  
General Switch F Trip  
General Switch G Trip  
Sequential Trip  
2
3
4
Thermal Capacity Used  
Current Demand  
Mvar Demand  
5
6
7
MW Demand  
8
MVA Demand  
9
Tachometer Trip  
F128 Unsigned OVERCURRENT CURVE  
16 bit  
STYLE SELECTION  
10  
11  
12  
13  
14  
15  
Unknown Trip  
integer  
Unknown Trip  
0
1
2
3
4
ANSI Extremely Inverse  
ANSI Very Inverse  
Overload Trip  
Unknown Trip  
ANSI Normally Inverse  
ANSI Moderately Inverse  
IEC Curve A (BS142)  
Neutral Overvoltage Trip  
Neutral Undervoltage  
(3rd Harmonic) Trip  
42  
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Table 2: Data Formats (Sheet 7 of 12)  
Table 2: Data Formats (Sheet 8 of 12)  
CODE TYPE  
DEFINITION  
Not Used  
CODE TYPE  
DEFINITION  
F134 16  
F134 69  
RTD 5 Alarm  
ctd.  
ctd.  
17  
Not Used  
70  
RTD 6 Alarm  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
Not Used  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
92  
93  
94  
95  
96  
97  
RTD 7 Alarm  
Not Used  
RTD 8 Alarm  
Differential Trip  
Acceleration Trip  
RTD 1 Trip  
RTD 9 Alarm  
RTD 10 Alarm  
RTD 11 Alarm  
RTD 2 Trip  
RTD 12 Alarm  
RTD 3 Trip  
Open RTD Alarm  
RTD 4 Trip  
Short/Low RTD Alarm  
Undervoltage Alarm  
Overvoltage Alarm  
Overfrequency Alarm  
Power Factor Alarm  
Reactive Power Alarm  
Low Forward Power Alarm  
Trip Counter Alarm  
Breaker Failure Alarm  
Current Demand Alarm  
kW Demand Alarm  
kvar Demand Alarm  
kVA Demand Alarm  
Broken Rotor Bar  
Analog Input 1 Alarm  
Analog Input 2 Alarm  
Analog Input 3 Alarm  
Analog Input 4 Alarm  
Reverse Power Alarm  
RTD 5 Trip  
RTD 6 Trip  
RTD 7 Trip  
RTD 8 Trip  
RTD 9 Trip  
RTD 10 Trip  
RTD 11 Trip  
RTD 12 Trip  
Undervoltage Trip  
Overvoltage Trip  
Phase Reversal Trip  
Overfrequency Trip  
Power Factor Trip  
Reactive Power Trip  
Underfrequency Trip  
Analog Input 1 Trip  
Analog Input 2 Trip  
Analog Input 3 Trip  
Analog Input 4 Trip  
Single Phasing Trip  
Reverse Power Trip  
Field-Breaker Discrepancy  
Offline Overcurrent Trip  
Phase Overcurrent Trip  
Incomplete Sequence  
Alarm  
98  
99  
Negative Sequence Alarm  
Ground Overcurrent  
Alarm  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
117  
118  
119  
120  
121  
Not Used  
Service Alarm  
Negative Sequence  
Overcurrent Trip  
Control Power Lost  
Control Power Applied  
Thermal Reset Close  
Emergency Reset Open  
Start While Blocked  
Relay Not Inserted  
Trip Coil Supervision  
Breaker Failure  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
General Switch A Alarm  
General Switch B Alarm  
General Switch C Alarm  
General Switch D Alarm  
General Switch E Alarm  
General Switch F Alarm  
General Switch G Alarm  
Not Used  
VT Fuse Failure  
Simulation Started  
Simulation Stopped  
Ground Overcurrent Trip  
Volts/Hertz Trip  
Tachometer Alarm  
Thermal Model Alarm  
Overload Alarm  
Underfrequency Alarm  
Not Used  
Volts/Hertz Alarm  
Low Forward Power Trip  
Inadvertent Energization  
Serial Start Command  
Serial Stop Command  
Input A Control  
Ground Fault Alarm  
RTD 1 Alarm  
RTD 2 Alarm  
RTD 3 Alarm  
RTD 4 Alarm  
Input B Control  
43  
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Table 2: Data Formats (Sheet 9 of 12)  
Table 2: Data Formats (Sheet 10 of 12)  
CODE TYPE  
DEFINITION  
Input C Control  
Input D Control  
Input E Control  
Input F Control  
Input G Control  
CODE TYPE  
DEFINITION  
F134 122  
F140 bit 4  
Reserved  
ctd.  
ctd.  
123  
bit 5  
Reserved  
124  
125  
126  
127  
bit 6  
bit 7  
Reserved  
Simulation Mode Enabled  
Breaker Open LED  
Breaker Closed LED  
Hot Stator LED  
Negative Sequence LED  
Ground LED  
bit 8  
Neutral Overvoltage  
Alarm  
bit 9  
bit 10  
128  
Neutral Undervoltage  
(3rd Harmonic) Alarm  
bit 11  
bit 12  
129  
130  
131  
132  
133  
134  
135  
Setpoint Group 1 Active  
Setpoint Group 2 Active  
Loss of Excitation 1  
bit 13  
Loss of Field LED  
VT Failure LED  
Breaker Failure LED  
bit 14  
bit 15  
Loss of Excitation 2  
F141 16 bits  
OUTPUT RELAY  
STATUS  
Ground Directional Trip  
Ground Directional Alarm  
bit 0  
bit 1  
bit 2  
bit 3  
bit 4  
bit 5  
1 TRIP  
High-Set Phase  
Overcurrent Trip  
2 AUXILIARY  
3 AUXILIARY  
4 AUXILIARY  
5 ALARM  
136  
137  
138  
Distance Zone 1 Trip  
Distance Zone 2 Trip  
Digital Input Waveform  
Trigger  
6 SERVICE  
Not Used  
139  
Serial Waveform Trigger  
bit 6 to  
bit 15  
F136 Unsigned ORDER CODE  
16 bit  
integer  
F142 Unsigned THERMAL MODEL  
16 bit  
integer  
CURVE STYLE  
SELECTION  
Bit 0  
Bit 1  
0 = P5 (5 A CT  
secondary), 1 = P1 (1 A  
CT secondary)  
0
1
2
Standard  
Custom  
0 = HI (High Voltage  
Power Supply),  
1 = LO (Low Voltage  
Power Supply)  
Voltage Dependent  
F200 Unsigned COMMUNICATION  
16 bit  
integer  
MONITOR BUFFER  
STATUS  
Bit 2  
0 = A20 (4 to 20 mA  
Analog Outputs),  
1 = A1 (0 to 1 mA Analog  
Outputs)  
0
1
2
3
4
5
6
7
Buffer Cleared  
Received OK  
F138 Unsigned SIMULATION MODE  
Wrong Slave Address  
Illegal Function  
Illegal Count  
16 bit  
integer  
0
1
2
3
Off  
Illegal Register Address  
CRC Error  
Simulate Pre-Fault  
Simulate Fault  
Pre-Fault to Fault  
Illegal Data  
F201 Unsigned CURVE RESET TYPE  
F139 Unsigned FORCE OPERATION OF  
16 bit  
16 bit  
RELAYS  
integer  
integer  
0
1
Instantaneous  
Linear  
0
Disabled  
1
1 TRIP  
F202 Unsigned INADVERTENT  
2
2 AUXILIARY  
3 AUXILIARY  
4 AUXILIARY  
5 ALARM  
16 bit  
ENERGIZATION  
ARMING TYPE  
3
integer  
4
0
1
Undervoltage and Offline  
Undervoltage or Offline  
5
6
6 SERVICE  
F206 Unsigned SEQUENTIAL TRIP  
16 bit  
TYPE  
7
All Relays  
integer  
8
F140 16 bits  
bit 0  
No Relays  
0
1
Low Forward Power  
Reverse Power  
GENERAL STATUS  
Relay in Service  
Active Trip Condition  
Active Alarm Condition  
Reserved  
F207 Unsigned SWITCH STATUS  
16 bit  
integer  
bit 1  
bit 2  
0
1
Open  
bit 3  
Shorted  
44  
GE Multilin  
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Communications Guide  
Table 2: Data Formats (Sheet 11 of 12)  
CODE TYPE DEFINITION  
Table 2: Data Formats (Sheet 12 of 12)  
CODE TYPE  
DEFINITION  
F208 Unsigned UNDERVOLTAGE TRIP  
F214 Unsigned WAVEFORM MEMORY  
16 bit  
ELEMENT TYPE  
16 bit  
CHANNEL SELECTOR  
integer  
integer  
0
1
Curve  
0
1
2
3
4
Phase A Line Current  
512 counts = 1 × CT  
Definite Time  
Phase B Line Current  
512 counts = 1 × CT  
F209 Unsigned BREAKER OPERATION  
16 bit  
integer  
TYPE  
Phase C Line Current  
512 counts = 1 × CT  
0
1
Breaker Auxiliary A  
Breaker Auxiliary B  
Phase A Line Current  
512 counts = 1 × CT  
F210 Unsigned ASSIGNABLE INPUT  
Neutral-End Phase A Line  
Current  
512 counts = 1 × CT  
16 bit  
integer  
SELECTION  
0
1
2
3
4
5
6
7
None  
5
6
7
8
9
Neutral-End Phase B Line  
Current  
Input 1  
Input 2  
Input 3  
Input 4  
Input 5  
Input 6  
Input 7  
512 counts = 1 × CT  
Neutral-End Phase C Line  
Current  
512 counts = 1 × CT  
Phase A to Neutral  
Voltage; 3500 counts =  
120 secondary volts  
Phase B to Neutral  
Voltage; 3500 counts =  
120 secondary volts  
F211 Unsigned VOLTS/HERTZ  
16 bit  
integer  
ELEMENT TYPE  
Phase C to Neutral  
Voltage; 3500 counts =  
120 secondary volts  
0
1
2
3
Curve #1  
Curve #2  
F215 Unsigned CURRENT SOURCE  
16 bit  
integer  
Curve #3  
Definite Time  
0
1
Neutral-End CTs  
Output-End CTs  
F212 Unsigned RTD NUMBER  
16 bit  
integer  
F216 Unsigned DNP PORT SELECTION  
16 bit  
integer  
0
All  
1
RTD #1  
RTD #2  
RTD #3  
RTD #4  
RTD #5  
RTD #6  
RTD #7  
RTD #8  
RTD #9  
RTD #10  
RTD #11  
RTD #12  
0
1
2
3
None  
2
Computer RS485  
Auxiliary RS485  
Front Panel RS485  
3
4
5
F217 Unsigned GROUND  
16 bit  
integer  
DIRECTIONAL MTA  
6
7
0
1
2
3
0 degrees  
8
90 degrees  
180 degrees  
270 degrees  
9
10  
11  
12  
F218 Unsigned BREAKER STATE  
16 bit  
integer  
F213 Unsigned COMMUNICATIONS  
16 bit  
integer  
MONITOR PORT  
SELECTION  
0
1
52 Closed  
52 Open/Closed  
0
1
2
Computer RS485  
Auxiliary RS485  
Front Panel RS232  
F219 Unsigned STEP-UP  
16 bit  
integer  
TRANSFORMER TYPE  
0
1
None  
Delta/Wye  
F220 Unsigned IRIG-B TYPE  
16 bit  
integer  
0
1
2
None  
DC Shift  
Amplitude Modulated  
45  
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DNP Protocol  
Communications Guide  
DNP Protocol  
Device Profile  
Document  
The communications port configured as a DNP slave port must support the full set of  
features listed in the Level 2 DNP V3.00 Implementation (DNP-L2) described in  
Chapter 2 of the subset definitions. See the DNP protocol website at http://  
www.dnp.org for details  
DNP 3.0: DEVICE PROFILE DOCUMENT  
Vendor Name: General Electric Multilin Inc.  
Device Name: 489 Generator Management Relay  
Highest DNP Level Supported:  
For Requests: Level 2  
Device Function:  
Master ËSlave  
Ë
For Responses: Level 2  
Notable objects, functions, and/or qualifiers supported in addition to the Highest DNP  
Levels Supported (the complete list is described in the attached table):  
Binary Input (Object 1, variations 1 and 2)  
Binary Output (Object 10, variation 2)  
Binary Counter (Object 20, variations 5 and 6)  
Frozen Counter (Object 21, variations 9 and 10)  
Analog Input (Object 30, variations 1, 2, 3, and 4)  
Analog Input Change (Object 32, variations 1, 2, 3, and 4)  
Warm Restart (Function Code 14)  
Maximum Data Link Frame Size (octets):  
Transmitted: 292  
Maximum Application Fragment Size  
(octets):  
Transmitted: 2048  
Received: 2048  
Received: 292  
Maximum Data Link Re-tries:  
Maximum Application Layer Re-tries:  
ËNone  
ËNone  
Fixed  
Configurable  
Ë
Ë
Configurable  
Ë
Requires Data Link Layer Confirmation:  
Never  
Always  
Sometimes  
Configurable  
Ëꢀ  
Ë
Ë
Ë
Requires Application Layer Confirmation:  
Never  
Ë
Always  
Ë
ËWhen reporting Event Data  
When sending multi-fragment responses  
Sometimes  
Configurable  
Ë
Ë
Ë
Timeouts while waiting for:  
Data Link Confirm  
None  
Fixed  
Fixed  
Fixed  
Variable  
Variable  
Variable  
Configurable  
Configurable  
Configurable  
Ëꢀ  
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Complete Appl. Fragment ËNone  
Application Confirm  
ËNone  
(fixed value is 5000 milliseconds)  
Complete Appl. Response ËNone  
Fixed  
Variable  
Configurable  
Ë
Ë
Ë
Others: (None)  
46  
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Communications Guide  
DNP 3.0: DEVICE PROFILE DOCUMENT (Continued)  
Executes Control Operations:  
Write Binary Outputs  
Select/Operate  
Direct Operate  
Direct Operate: No Ack  
Count > 1  
Pulse On  
Pulse Off  
Latch On  
Latch Off  
ËNever  
ËNever  
Always  
Always  
Always  
Sometimes  
Sometimes  
Sometimes  
Sometimes  
Sometimes  
Sometimes  
Sometimes  
Sometimes  
Sometimes  
Configurable  
Configurable  
Configurable  
Configurable  
Configurable  
Configurable  
Configurable  
Configurable  
Configurable  
Ë
Ë
Ëꢀ  
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Ë
Never  
Ë
Never ËAlways  
Ë
ËNever  
Never  
Ë
Ëꢀ  
Ë
Ë
Always  
Always  
Always  
Always  
Always  
Ë
ËNever  
ËNever  
Never  
Ëꢀ  
explanation of the above.  
Queue  
Clear Queue  
ËNever  
Never  
Always  
Always  
Sometimes  
Sometimes  
Configurable  
Configurable  
Ë
Ë
Ë
Ë
Ë
Ë
Ëꢀ  
Reports Binary Input Change Events when Reports time-tagged Binary Input Change  
no specific variations requested:  
Never  
Events when no specific variation  
requested:  
Ë
Never  
Ë
ËOnly time-tagged  
ËBinary Input Change With Time  
Only non-time-tagged  
Ë
Binary Input Change With Relative  
Time  
Ë
Configurable to send both, one or  
the other  
Ë
Configurable  
Ë
Sends Unsolicited Responses:  
Sends Static Data in Unsolicited  
Responses:  
Never  
Ëꢀ  
Never  
Ëꢀ  
Ë
Ë
Configurable  
Ë
When Device Restarts  
When Status Flags Change  
Ë Only certain objects  
Sometimes  
Ë
ENABLE/DISABLE UNSOLICITED  
Function codes supported  
Ë
Default Counter Object/Variation:  
Counters Roll Over at:  
No Counters Reported  
Configurable  
No Counters Reported  
Configurable  
Ë
Ë
Ë
Ë
ËDefault Object / Default Variation  
Point-by-point list attached  
Ë 16 Bits  
32 Bits  
Ë
Ë
Other Value  
Ë
ËPoint-by-point list attached  
Sends Multi-Fragment Responses:  
Yes ËNo  
Ë
Implementation Table  
The table below gives a list of all objects recognized and returned by the relay.  
Additional information is provided on the following pages including a list of the  
default variations returned for each object and lists of defined point numbers for  
each object.  
Implementation Table Notes:  
1. For this object, the quantity specified in the request must be exactly 1 as there  
is only one instance of this object defined in the relay.  
2. All static data known to the relay is returned in response to a request for Class  
0. This includes all objects of type 1 (Binary Input), type 10 (Binary Output),  
type 20 (Binary Counter), type 21 (Frozen Counter) and type 30 (Analog Input).  
3. The point tables for Binary Input and Analog Input objects contain a field that  
defines to which event class the corresponding static data point has been  
assigned.  
4. For this object, the qualifier code must specify an index of 7 only.  
5. Delay Measurement (function code 23) is supported since the relay allows for  
writing the time via object 50 and it also periodically sets the “Time Synchroni-  
zation Required” Internal Indication (IIN). The IIN is set at power-up and will be  
set again 24 hours after it was last cleared. The IIN is cleared when time is writ-  
ten as object 50 data or if IRIG-B is enabled and relay time is updated as a  
result of a successful decoding of this signal.  
47  
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Communications Guide  
Table 3: DNP Implementation Table  
Object  
Obj  
Request  
Response  
Var  
Description  
Func Codes  
Qual Codes  
Func Codes Qual Codes  
(Hex)  
(Hex)  
1
0
1
2
0
1
2
0
2
1
0
5
6
0
9
10  
0
1
2
3
4
0
1
2
3
4
1
1
2
3
4
1
Binary Input - All Variations  
Binary Input  
1
06  
1
1
00, 01, 06  
00, 01, 06  
06, 07, 08  
06, 07, 08  
06, 07, 08  
06  
129  
129  
00, 01  
00, 01  
1
Binary Input With Status (Note 6)  
Binary Input Change - All Variations  
Binary Input Change Without Time  
Binary Input Change With Time  
Binary Output - All Variations  
Binary Output Status  
1
2
1
2
1
129  
129  
17, 28  
17, 28  
2
1
10  
10  
12  
20  
20  
20  
21  
21  
21  
30  
30  
30  
30  
30  
32  
32  
32  
32  
32  
50  
60  
60  
60  
60  
80  
1
1
00, 01, 06  
17, 28  
129  
129  
129  
129  
129  
129  
129  
129  
00, 01  
17, 28  
00, 01  
00, 01  
00, 01  
00, 01  
00, 01  
00, 01  
Control Relay Output Block  
3, 4, 5, 6  
Binary Counter - All Variations  
32-Bit Binary Counter without Flag  
16-Bit Binary Counter without Flag  
Frozen Counter - All Variations  
32-Bit Frozen Counter without Flag  
16-Bit Frozen Counter without Flag  
Analog Input - All Variations  
32-Bit Analog Input With Flag  
16-Bit Analog Input With Flag  
32-Bit Analog Input Without Flag  
16-Bit Analog Input Without Flag  
Analog Input Change - All Variations  
32-Bit Analog Input Change without Time  
16-Bit Analog Input Change without Time  
32-Bit Analog Input Change with Time  
16-Bit Analog Input Change with Time  
Time and Date  
1, 7, 8, 9, 10  
06  
1, 7, 8, 9, 10  
06  
1, 7, 8, 9, 10  
06  
1
1
06  
06  
1
06  
1
06  
1
00, 01, 06  
00, 01, 06  
00, 01, 06  
00, 01, 06  
06, 07, 08  
06, 07, 08  
06, 07, 08  
06, 07, 08  
06, 07, 08  
07 (Note 1)  
06  
129  
129  
129  
129  
00, 01  
00, 01  
00, 01  
00, 01  
1
1
1
1
1
129  
129  
129  
129  
129  
129  
129  
129  
129  
129  
17, 28  
17, 28  
17, 28  
17, 28  
07  
1
1
1
1, 2  
1
Class 0 Data (Note 2)  
Class 1 Data (Note 3)  
1
06, 07, 08  
06, 07, 08  
06, 07, 08  
00 (Note 4)  
Class 2 Data (Note 3)  
1
Class 3 Data (Note 3)  
1
Internal Indications  
2
No object - Cold Start  
13  
14  
23  
No object - Warm Start  
No object - Delay Measurement (Note 5)  
Default Variations  
The following table specifies the default variation for all objects returned by the  
relay. These are the variations that will be returned for the object in a response  
when no specific variation is specified in a request.  
Table 4: Default Variations  
OBJECT  
DESCRIPTION  
DEFAULT  
VARIATION  
1
Binary Input - Single Bit  
1
2
2
Binary Input Change With Time  
Binary Output Status  
10  
20  
21  
30  
32  
2
16-Bit Binary Counter without Flag  
16-Bit Frozen Counter without Flag  
32-Bit Analog Input Without Flag  
32-Bit Analog Input Change Without Time  
6
10  
3
1
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Binary Input / Binary  
Input Change (Objects  
01/02)  
The point list for Binary Inputs (Object 01) and Binary Input Change (Object 02) is  
shown below:  
Table 5: Binary Inputs (Sheet 1 of 4)  
Table 5: Binary Inputs (Sheet 2 of 4)  
Idx  
0
Description  
Class  
Idx  
Description  
Class  
Relay In Service  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
50  
Offline Overcurrent Trip Active Class 1  
or Latched  
1
Trip Condition Active  
Alarm Condition Active  
Simulation Mode Enabled  
Breaker Is Open  
51  
52  
53  
Inadvertent Energization Trip  
Active or Latched  
Class 1  
Class 1  
Class 1  
2
3
Phase Overcurrent Trip Active  
or Latched  
4
Negative Sequence  
Overcurrent Trip Active or  
Latched  
5
Breaker Is Closed  
Hot Stator Fault Active  
6
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
Ground Overcurrent Trip Active Class 1  
or Latched  
7
Negative Sequence Fault Active Class 1  
8
Ground Fault Active  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Phase Differential Trip Active or Class 1  
Latched  
9
Loss Of Field Fault Active  
VT Failure Detected  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
Undervoltage Trip Active or  
Latched  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Breaker Failure Detected  
Relay 1 Trip Operated  
Overvoltage Trip Active or  
Latched  
Relay 2 Auxiliary Operated  
Relay 3 Auxiliary Operated  
Relay 4 Auxiliary Operated  
Relay 5 Alarm Operated  
Relay 6 Service Operated  
Setpoint Access Input Closed  
Breaker Status Input Closed  
Assignable Input 1 Closed  
Assignable Input 2 Closed  
Assignable Input 3 Closed  
Assignable Input 4 Closed  
Assignable Input 5 Closed  
Assignable Input 6 Closed  
Assignable Input 7 Closed  
Volts/Hertz Trip Active or  
Latched  
Phase Reversal Trip Active or  
Latched  
Underfrequency Trip Active or  
Latched  
Overfrequency Trip Active or  
Latched  
Neutral Overvoltage Trip Active Class 1  
or Latched  
Neutral Undervoltage (Third  
Harmonic) Trip Active or  
Latched  
Class 1  
64  
65  
66  
67  
Reactive Power Trip Active or  
Latched  
Class 1  
Class 1  
Class 1  
Class 1  
Reverse Power Trip Active or  
Latched  
Low Fwd Power Trip Active or  
Latched  
Trip Coil Supervision - Coil  
Detected  
Thermal Model Trip Active or  
Latched  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
Assignable Input 1 Trip Active  
or Latched  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
RTD 1 Trip Active or Latched  
RTD 2 Trip Active or Latched  
RTD 3 Trip Active or Latched  
RTD 4 Trip Active or Latched  
RTD 5 Trip Active or Latched  
RTD 6 Trip Active or Latched  
RTD 7 Trip Active or Latched  
RTD 8 Trip Active or Latched  
RTD 9 Trip Active or Latched  
RTD 10 Trip Active or Latched  
RTD 11 Trip Active or Latched  
RTD 12 Trip Active or Latched  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Assignable Input 2 Trip Active  
or Latched  
Assignable Input 3 Trip Active  
or Latched  
Assignable Input 4 Trip Active  
or Latched  
Assignable Input 5 Trip Active  
or Latched  
Assignable Input 6 Trip Active  
or Latched  
Assignable Input 7 Trip Active  
or Latched  
Sequential Trip Active or  
Latched  
Field-Breaker Discrepancy Trip Class 1  
Active or Latched  
Analog Input 1 Trip Active or  
Latched  
Tachometer Trip Active or  
Latched  
Class 1  
81  
Analog Input 2 Trip Active or  
Latched  
Class 1  
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Table 5: Binary Inputs (Sheet 3 of 4)  
Table 5: Binary Inputs (Sheet 4 of 4)  
Idx  
Description  
Class  
Idx  
124  
125  
126  
127  
128  
129  
130  
131  
132  
133  
Description  
Class  
82  
Analog Input 3 Trip Active or  
Latched  
Class 1  
RTD 4 Alarm Active or Latched Class 1  
RTD 5 Alarm Active or Latched Class 1  
RTD 6 Alarm Active or Latched Class 1  
RTD 7 Alarm Active or Latched Class 1  
RTD 8 Alarm Active or Latched Class 1  
RTD 9 Alarm Active or Latched Class 1  
RTD 10 Alarm Active or Latched Class 1  
RTD 11 Alarm Active or Latched Class 1  
RTD 12 Alarm Active or Latched Class 1  
83  
Analog Input 4 Trip Active or  
Latched  
Class 1  
84  
Loss of Excitation Circle 1 Trip Class 1  
Active or Latched  
85  
Loss of Excitation Circle 2 Trip Class 1  
Active or Latched  
86  
Ground Directional Trip Active Class 1  
or Latched  
87  
High Set Phase Overcurrent  
Trip Active or Latched  
Class 1  
Open Sensor Alarm Active or  
Latched  
Class 1  
88  
Distance Zone 1 Trip Active or Class 1  
Latched  
134  
135  
136  
137  
138  
Short/Low Temp Alarm Active  
or Latched  
Class 1  
89  
Distance Zone 2 Trip Active or Class 1  
Latched  
Thermal Model Alarm Active or Class 1  
Latched  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
117  
Assignable Input 1 Alarm  
Active / Latched  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Trip Counter Alarm Active or  
Latched  
Class 1  
Assignable Input 2 Alarm  
Active or Latched  
Breaker Failure Alarm Active or Class 1  
Latched  
Assignable Input 3 Alarm  
Active or Latched  
Trip Coil Monitor Alarm Active  
or Latched  
Class 1  
Assignable Input 4 Alarm  
Active or Latched  
139  
140  
VTFF Alarm Active or Latched  
Class 1  
Class 1  
Assignable Input 5 Alarm  
Active or Latched  
Current Dmd Alarm Active or  
Latched  
Assignable Input 6 Alarm  
Active or Latched  
141  
142  
MW Demand Alarm Active or  
Latched  
Class 1  
Assignable Input 7 Alarm  
Active / Latched  
Mvar Demand Alarm Active or Class 1  
Latched  
Tachometer Alarm Active or  
Latched  
143  
144  
MVA Alarm Active or Latched  
Class 1  
Analog Input 1 Alarm Active or Class 1  
Latched  
Overcurrent Alarm Active or  
Latched  
145  
146  
147  
148  
149  
150  
151  
152  
153  
154  
155  
Analog Input 2 Alarm Active or Class 1  
Latched  
Negative Sequence Alarm  
Active or Latched  
Analog Input 3 Alarm Active or Class 1  
Latched  
Ground Overcurrent Alarm  
Active or Latched  
Analog Input 4 Alarm Active or Class 1  
Latched  
Undervoltage Alarm Active or  
Latched  
Not Programmed Alarm Active Class 1  
or Latched  
Overvoltage Alarm Active or  
Latched  
Simulation Mode Alarm Active Class 1  
or Latched  
Volts/Hertz Alarm Active or  
Latched  
Output Relays Forced Alarm  
Active or Latched  
Class 1  
Class 1  
Class 1  
Class 1  
Underfreq Alarm Active or  
Latched  
Analog Output Forced Alarm  
Active or Latched  
Overfrequency Alarm Active or Class 1  
Latched  
Test Switch Shorted Alarm  
Active or Latched  
Neutral Overvoltage Alarm  
Active or Latched  
Class 1  
Ground Directional Alarm  
Active or Latched  
Neutral Undervoltage (Third  
Harmonic) Alarm Active or  
Latched  
Class 1  
IRIG-B Failure Alarm Active or Class 1  
Latched  
118  
119  
120  
Reactive Power Alarm Active or Class 1  
Latched  
Generator Running Hour Alarm Class 1  
Active or Latched  
Reverse Power Alarm Active or Class 1  
Latched  
Any detected change in the  
state of any point assigned to  
Class 1 will cause the generation  
of an event object.  
Low Forward Power Alarm  
Active / Latched  
Class 1  
NOTE  
121  
122  
123  
RTD 1 Alarm Active or Latched Class 1  
RTD 2 Alarm Active or Latched Class 1  
RTD 3 Alarm Active or Latched Class 1  
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Communications Guide  
Binary / Control Relay  
Output Block (Objects  
10/12)  
Table 6: Binary Output Point List  
INDEX  
DESCRIPTION  
0
1
2
3
4
5
6
7
8
Reset  
Generator Start  
Generator Stop  
Clear Trip Counters  
Clear Last Trip Data  
Clear MWh and Mvarh  
Clear Peak Demand Data  
Clear Generator Information  
Clear Breaker Information  
The following restrictions should be noted when using object 12 to control the points  
listed above:  
1. The Count field is checked first. If it is zero, the command will be accepted but  
no action will be taken. If this field is non-zero, the command will be executed  
exactly once regardless of its value.  
2. The Control Code field of object 12 is then inspected:  
The Queue and Clear sub-fields are ignored.  
If the Control Code field is zero (i.e., NUL operation) the command is  
accepted but no action is taken.  
For all points, the only valid control is “Close - Pulse On” (41 hex). This is  
used to initiate the function (e.g., Reset) associated with the point.  
Any value in the Control Code field not specified above is invalid and will  
be rejected.  
The On Time and Off Time fields are ignored. A ”Pulse On” control takes  
effect immediately when received. Thus, the timing is irrelevant.  
The Status field in the response will reflect the success or failure of the  
control attempt thus:  
A Status of “Request Accepted” (0) will be returned if the command was  
accepted.  
A Status of “Request not Accepted due to Formatting Errors” (3) will be  
returned if the Control Code field was incorrectly formatted or an invalid  
Code was present in the command.  
A Status of “Control Operation not Supported for this Point” (4) will be  
returned if an attempt was made to operate the point and the relay, owing  
to its configuration, does not allow the point to perform its function.  
An operate of the Reset point may fail (even if the command is accepted) due to  
other inputs or conditions (e.g., blocks) existing at the time. To verify the success or  
failure of an operate of this point it is necessary that the associated Binary Input(s)  
be examined after the control attempt is performed.  
When using object 10 to read the status of any Binary Output, a value of zero will  
always be returned. This is due to the fact that all points are “Pulse On” and are  
deemed to be normally off.  
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Communications Guide  
Binary / Frozen Counter  
(Objects 20/21)  
Table 7: Counters Point List  
INDEX  
ROLLOVER  
POINT  
DESCRIPTION  
0
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
50000  
Number of Breaker Operations  
Number of Thermal Resets  
1
2
Number of Trips (total)  
3
Number of Digital Input Trips  
Number of Sequential Trips  
4
5
Number of Field-Breaker Discrepancy Trips  
Number of Tachometer Trips  
Number of Offline Overcurrent Trips  
Number of Phase Overcurrent Trips  
6
7
8
9
Number of Negative Sequence Overcurrent Trips  
Number of Ground Overcurrent Trips  
Number of Phase Differential Trips  
Number of Undervoltage Trips  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
Number of Overvoltage Trips  
Number of Volts/Hertz Trips  
Number of Phase Reversal Trips  
Number of Underfrequency Trips  
Number of Overfrequency Trips  
Number of Neutral Overvoltage (Fundamental) Trips  
Number of Neutral Undervoltage (Third Harmonic) Trips  
Number of Reactive Power Trips  
Number of Reverse Power Trips  
Number of Underpower Trips  
Number of Stator RTD Trips  
Number of Bearing RTD Trips  
Number of Other RTD Trips  
Number of Ambient RTD Trips  
Number of Thermal Model Trips  
Number of Inadvertent Energization Trips  
Number of Analog Input 1 Trips  
Number of Analog Input 2 Trips  
Number of Analog Input 3 Trips  
Number of Analog Input 4 Trips  
Number of Loss of Excitation Circle 1 Trips  
Number of Loss of Excitation Circle 2 Trips  
Number of Ground Directional Trips  
Number of High Set Phase Overcurrent Trips  
Number of Distance Zone 1 Trips  
Number of Distance Zone 2 Trips  
The counters cannot be cleared with the Freeze/Clear function codes (9/10).  
Instead, the control relay output block points can be used to clear groups of  
counters. There is only one copy of each counter, so clearing a counter via Modbus  
or the front panel display causes the corresponding DNP counter point to be cleared  
and vice-versa.  
NOTE  
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Communications Guide  
Analog Input / Input  
Change (Objects 30/32)  
In the following table, the Format column indicates that the associated data point  
format is determined by the entry in Data Formats on page 40. For example, an  
“F1” format is described in that table as a (16-bit) unsigned value without any  
decimal places. Therefore, the value read should be interpreted in this manner.  
Many of the values reported by the 489 have a size of 32-bits and have had their  
upper and lower 16-bit components assigned to separate points. Where indicated,  
refer to the appropriate note following the table for more detail.  
Table 8: Analog Inputs Point List (Sheet 1 of 4)  
INDEX  
FOR-  
MAT  
DESCRIPTION  
EVENT CLASS  
ASSIGNED TO  
NOTES  
0
1
2
F133  
F1  
Generator Status  
Class 1  
Class 1  
Class 1  
Note 3  
Generator Thermal Capacity Used  
F1  
Estimated Trip Time On Overload  
(seconds, 65535 means never)  
3
4
5
6
7
8
9
F134  
F19  
F19  
F18  
F18  
F1  
Cause Of Last Trip  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Note 3  
Notes 3,4  
Notes 3,4  
Notes 3,4  
Notes 3,4  
Note 3  
Time Of Last Trip (Upper 16 Bits)  
Time Of Last Trip (Lower 16 Bits)  
Date Of Last Trip (Upper 16 Bits)  
Date Of Last Trip (Lower 16 Bits)  
Tachometer Pre-Trip  
F1  
Scale factor for pre-trip current readings  
(pre-trip points marked with “Note 6”).  
Will always be a power of 10 (1, 10, 100,  
etc.). Changes only when the configuration  
setpoints are changed.  
Note 3  
10  
11  
12  
13  
14  
15  
16  
17  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
Phase A Pre-Trip Current  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Notes 3, 6  
Notes 3, 6  
Notes 3, 6  
Notes 3, 6  
Notes 3, 6  
Notes 3, 6  
Note 3  
Phase B Pre-Trip Current  
Phase C Pre-Trip Current  
Phase A Pre-Trip Differential Current  
Phase B Pre-Trip Differential Current  
Phase C Pre-Trip Differential Current  
Pre-Trip Negative Sequence Current  
Ground Current Scale Factor. Will always  
be a power of 10 (1, 10, 100, etc.).  
Changes only when the configuration  
setpoints are changed.  
Note 3  
18  
F6  
Pre-Trip Ground Current (scaled according  
to previous setpoint)  
Class 1  
Note 3  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
F1  
F1  
F1  
F3  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F4  
Phase A-B Pre-Trip Voltage  
Phase B-C Pre-Trip Voltage  
Phase C-A Pre-Trip Voltage  
Pre-Trip Frequency  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Note 3  
Note 3  
Note 3  
Note 3  
Pre-Trip Real Power (MW)  
Pre-Trip Real Power (kW)  
Pre-Trip Reactive Power (Mar  
Pre-Trip Reactive Power (kvar)  
Pre-Trip Apparent Power (MVA)  
Pre-Trip Apparent Power (kVA)  
Last Trip Stator RTD  
Notes 3,8  
Notes 3,8  
Notes 3,8  
Notes 3,8  
Notes 3,8  
Notes 3,8  
Note 3  
Last Trip Hottest Stator RTD Temperature  
(°C)  
Note 3  
31  
32  
F1  
F4  
Last Trip Bearing RTD  
Class 1  
Class 1  
Note 3  
Note 3  
Last Trip Hottest Bearing RTD Temperature  
(°C)  
33  
34  
F1  
F4  
Last Trip Other RTD  
Class 1  
Class 1  
Note 3  
Note 3  
Last Trip Hottest Other RTD Temperature  
(°C)  
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Communications Guide  
Table 8: Analog Inputs Point List (Sheet 2 of 4)  
INDEX  
FOR-  
MAT  
DESCRIPTION  
EVENT CLASS  
ASSIGNED TO  
NOTES  
35  
36  
F1  
F4  
Last Trip Ambient RTD  
Class 1  
Note 3  
Note 3  
Last Trip Hottest Ambient RTD  
Temperature (°C)  
Class 1  
37  
38  
39  
40  
41  
F12  
F12  
F12  
F12  
F1  
Pre-Trip Analog Input 1  
Pre-Trip Analog Input 2  
Pre-Trip Analog Input 3  
Pre-Trip Analog Input 4  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Notes 3,9  
Notes 3,9  
Notes 3,9  
Notes 3,9  
Notes 3,10  
Pre-Trip Fundamental Frequency Neutral  
Voltage (volts)  
42  
43  
44  
45  
46  
47  
F10  
F1  
Pre-Trip Fundamental Frequency Neutral  
Voltage (tenths of a volt)  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Class 1  
Notes 3,10  
Notes 3,10  
Notes 3,10  
Note 3  
Pre-Trip Third Harmonic Neutral Voltage  
(volts)  
F10  
F2  
Pre-Trip Third Harmonic Neutral Voltage  
(tenths of a volt)  
Pre-Trip Vab/Iab (loss of excitation  
impedance)  
F1  
Pre-Trip Vab/Iab Angle (loss of excitation  
impedance angle)  
Note 3  
F1  
Scale factor for current readings (points  
marked with “Note 7”). Will always be a  
power of 10 (1, 10, 100, etc.). Changes  
only when the configuration setpoints are  
changed.  
Note 3  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
Phase A Output Current  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 1  
Note 7  
Note 7  
Note 7  
Note 7  
Note 7  
Note 7  
Note 7  
Note 7  
Note 7  
Note 7  
Phase B Output Current  
Phase C Output Current  
Phase A Neutral-Side Current  
Phase B Neutral-Side Current  
Phase C Neutral-Side Current  
Phase A Differential Current  
Phase B Differential Current  
Phase C Differential Current  
Average Phase Current  
Generator Load (percent)  
Negative Sequence Current  
Ground Current Scale Factor. Will always  
be a power of 10 (1, 10, 100, etc.).  
Changes only when the configuration  
setpoints are changed.  
Note 3  
61  
F3  
Ground Current (scaled according to the  
previous point)  
Class 2  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F3  
F3  
F1  
Phase A-B Voltage  
Phase B-C Voltage  
Phase C-A Voltage  
Average Line Voltage  
Phase A-N Voltage  
Phase B-N Voltage  
Phase C-N Voltage  
Average Phase Voltage  
Per Unit Measurement Of V/Hz  
Frequency  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Note 2  
Fundamental Frequency Neutral Voltage  
(volts)  
Note 10  
73  
F10  
Fundamental Frequency Neutral Voltage  
(tenths of a volt)  
Class 2  
Note 10  
54  
GE Multilin  
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DNP Point Lists  
Communications Guide  
Table 8: Analog Inputs Point List (Sheet 3 of 4)  
INDEX  
FOR-  
MAT  
DESCRIPTION  
EVENT CLASS  
ASSIGNED TO  
NOTES  
74  
75  
F1  
Third Harmonic Neutral Voltage (volts)  
Class 2  
Class 2  
Note 10  
Note 10  
F10  
Third Harmonic Neutral Voltage (tenths of  
a volt)  
76  
77  
F1  
Third Harmonic Terminal Voltage (volts)  
Class 2  
Class 2  
Note 10  
Note 10  
F10  
Third Harmonic Terminal Voltage (tenths of  
a volt)  
78  
79  
F2  
F1  
Vab/Iab (loss of excitation impedance)  
Class 2  
Class 2  
Vab/Iab Angle (loss of excitation  
impedance angle)  
80  
81  
F6  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F4  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F1  
F12  
F12  
F12  
F12  
F1  
F1  
Power Factor  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Class 2  
Real Power (MW)  
Note 8  
Note 8  
Note 8  
Note 8  
Note 8  
Note 8  
Note 3  
82  
Real Power (kW)  
83  
Reactive Power (Mar)  
Reactive Power (kvar)  
Apparent Power (MVA)  
Apparent Power (kVA)  
Hottest Stator RTD  
Hottest Stator RTD Temperature (°C)  
RTD #1 Temperature (°C)  
RTD #2 Temperature (°C)  
RTD #3 Temperature (°C)  
RTD #4 Temperature (°C)  
RTD #5 Temperature (°C)  
RTD #6 Temperature (°C)  
RTD #7 Temperature (°C)  
RTD #8 Temperature (°C)  
RTD #9 Temperature (°C)  
RTD #10 Temperature (°C)  
RTD #11 Temperature (°C)  
RTD #12 Temperature (°C)  
Current Demand  
84  
85  
86  
87  
88  
89  
90  
91  
92  
93  
94  
95  
96  
97  
98  
99  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
117  
118  
119  
120  
Note 7  
Note 8  
Note 8  
Note 8  
Note 8  
Note 8  
Note 8  
Note 7  
Note 8  
Note 8  
Note 8  
Note 8  
Note 8  
Note 8  
Note 9  
Note 9  
Note 9  
Note 9  
MW Demand  
kW Demand  
Mvar Demand  
kvar Demand  
MVA Demand  
kVA Demand  
Peak Current Demand  
Peak MW Demand  
Peak kW Demand  
Peak Mvar Demand  
Peak kvar Demand  
Peak MVA Demand  
Peak kVA Demand  
Analog Input 1  
Analog Input 2  
Analog Input 3  
Analog Input 4  
Tachometer RPM  
Average Generator Load  
55  
GE Multilin  
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489  
DNP Point Lists  
Communications Guide  
Table 8: Analog Inputs Point List (Sheet 4 of 4)  
INDEX  
FOR-  
MAT  
DESCRIPTION  
EVENT CLASS  
ASSIGNED TO  
NOTES  
121  
122  
123  
124  
F1  
F1  
-
Average Negative Sequence Current  
Average Phase-Phase Voltage  
User Map Value 1  
Class 2  
Class 2  
Note 5  
Note 5  
-
User Map Value 2  
↓...  
246  
247  
248  
249  
250  
251  
252  
-
User Map Value 124  
User Map Value 125  
Active Setpoint Group  
Positive kWh  
Note 5  
Note 5  
Note 3  
-
F118  
F13  
F13  
F13  
F12  
Class 1  
Class 2  
Class 2  
Class 2  
Class 2  
Positive kvarh  
Negative kvarh  
Generator Hours Online  
TABLE NOTES:  
1. Unless otherwise specified, an event object will be generated for a point if the  
current value of the point changes by an amount greater than or equal to two  
percent of its previous value.  
2. An event object is created for the Frequency point if the frequency changes by  
0.04 Hz or more from its previous value.  
3. An event object is created for these points if the current value of a point is in  
any way changed from its previous value.  
4. To support existing SCADA hardware that is not capable of 32-bit data reads,  
the upper and lower 16-bit portions of these 32-bit values have been assigned  
to separate points. To read this data, it is necessary to read both the upper and  
lower 16-bit portions, concatenate these two values to form a 32-bit value and  
interpret the result in the format associated with the point as specified in Data  
5. The data returned by a read of the User Map Value points is determined by the  
values programmed into the corresponding User Map Address registers (which  
are only accessible via Modbus). Refer to User-Definable Memory Map Area on  
page 9 for more information. Changes in User Map Value points never generate  
event objects. Note that it is possible to refer to a 32-bit quantity in a user map  
register, which may require the use of a 32-bit variation to read the associated  
analog input point.  
6. The scale for pre-trip currents is determined by the value in point 9, which  
should not normally change  
7. The scale for currents is determined by the value in point 47, which should not  
normally change  
8. Each power quantity is available at two different points, with two different scale  
factors (kW and MW, for example). The user should select the unit which is clos-  
est to providing the resolution and range desired. If 32-bit analog input capabil-  
ity is present, the higher-resolution (kW, kvar, kVA) points should generally be  
used, since they provide the greatest resolution.  
9. Analog input values may be –50000 to +50000 if so configured. Therefore, 32-  
bit analog input capability is required to read the full possible range. If the  
SCADA equipment can only read 16-bit registers, the analog inputs should be  
configured to operate within the range –32768 to +32767.  
10. Each neutral voltage quantity is available at two different points, with two dif-  
ferent scale factors (volts and tenths of a volt). The user should select the unit  
which is closest to providing the resolution and range desired. If 32-bit analog  
input capability is present, the higher-resolution (tenths of a volt) points should  
generally be used, since they provide the greatest resolution.  
56  
GE Multilin  
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Index  
489  
Communications Guide  
Index  
A
E
ANALOG INPUTS  
B
L
M
MEMORY MAP  
C
MODBUS  
COMMUNICATIONS  
CYCLIC REDUNDANCY CHECK  
D
DNP  
DNP COMMUNICATIONS  
R
i
GE Multilin  
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