FieldServer Computer Drive FS 8700 80 User Manual

A Sierra Monitor Company  
Driver Manual  
(Supplement to the FieldServer Instruction Manual)  
FS-8700-80 McQuay Micro Tech  
Open Protocol  
APPLICABILITY & EFFECTIVITY  
Effective for all systems manufactured after May 1, 2001  
Driver Version:  
1.03  
Document Revision:  
2
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McQuay Micro Tech Open Protocol Driver Manual  
Page 3 of 35  
1.  
McQuay Micro Tech Open Protocol Description  
This document describes the FieldServer driver used to transfer data between a FieldServer and  
MicroTech® controllers. Transfers are done using the controller's Data Terminal Communications  
Protocol. In this document the protocol is referred to as the McQuay Micro Tech Open Protocol.  
The McQuay Micro Tech Open Protocol driver allows the FieldServer to transfer data to and from devices  
over either RS-232 or RS-485 using McQuay Micro Tech Open Protocol. The FieldServer can emulate  
either a Server or Client.  
When emulating a Client, the driver enables the FieldServer to request ‘Everything’ from the McQuay  
device as well as a number of advanced options which allow specific fields to be read or written and  
device scaling to be applied.  
When emulating a Server, the driver provides an emulation of the byte memory of a device and responds  
to read and write requests.  
The following important points and limitations should be noted before proceeding with this manual.  
1. Arising from a feature of the McQuay Micro Tech Open Protocol is the peculiarity, that when a multi-  
byte value is written to a McQuay device, the write is done one byte at a time (one byte of data can  
be transferred per poll/response message pair) allowing for the possibility (at least for a short period)  
that the multi byte value is only partially correct until all the messages have been completed.  
2. The vendor equipment is limited to a maximum of 9600 baud. Given that each message packet can  
only transfer one byte of data and that some data of interest is multi-byte, users of this protocol  
should expect low data transfer rates.  
3. Port expansion is not supported for this driver.  
4. A document identified as Ed15050 MicroTech Network Operations contains important information  
regarding the connection requirements of 3rd party equipment such as the FieldServer to a Microtech  
network. The document also defines a number of limitations for such connections. The following  
quotations from this document outline some of this information.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 4 of 35  
PC Connection  
The PC connection to a MicroTech controller is through an available port A that is configured as TTY.  
It is best to connect the PC to a level-1 controller because data transmission is the fastest. However,  
a PC can be connected to any level-2 controller that does not have level-3 controllers connected to it  
or to any MicroTech level-3 controller. Regardless of where you connect the PC, you have access to  
the entire network.  
You can connect two or more PCs to the network, but only one PC can be connected to a particular  
controller. The PC that you use most often should be connected to the level-1 controller for best  
performance. For example, you may have one PC that you use on site and another PC that you use  
off site. In this situation, you may want to connect the on-site PC to the level-1 controller and the  
modem for the off-site PC to a level-2 or level-3 controller.  
If a PC is connected to a level-2 controller, a level-1 controller must poll that level-2 controller  
connected to the PC so that the PC has access to the entire network. Defining a level-2 controller in  
the level-1 controller Server list causes the level-1 controller to poll the level-2 controller.  
Port Configuration: The communications port that the PC is connected to must be configured as a  
TTY port. The default port configuration for most MicroTech controllers sets port A as TTY. The port  
configuration is a software setting.  
A separate software setting defines the communications rate of each port. In most controllers, the  
default rate is 9600 bps.  
TTY: A TTY port is used to connect a PC for monitoring purposes. It uses the RS-232C interface  
standard and the Data Terminal Communications protocol.  
5. The following quote from “MicroTech® Data Terminal Communication Packets, Open Protocol™ Data  
Communications Information Packet ” highlights an important limitation of the protocol.  
Data terminal communications may be sent via RS-232C or RS-485. Regardless of the electrical  
standard used for communications, this protocol is a single ended type (i.e., communications to one  
MicroTech controller maximum).  
6. Each MicroTech controller is shipped from the factory with a unique job site password. The  
passwords are provided by the McQuay International representative at the time of startup.  
7. The driver does not validate passwords when configured as a Server. This means that requests to  
read or write data will succeed even if the password supplied with the request is incorrect.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 5 of 35  
2.  
Driver Scope of Supply  
2.1. Supplied by FieldServer Technologies for this driver  
FieldServer Technologies PART #  
FS-8917-16  
DESCRIPTION  
RJ45 to terminal connector cable.  
2.2.  
Provided by Supplier of 3rd Party Equipment  
PART #  
DESCRIPTION  
McQuay Motor Mount Connector for Port A connection  
3.  
Hardware Connections  
The FieldServer is connected to the McQuay device as shown below.  
Configure the McQuay device according to manufacturer’s instructions.  
SERIES 200 CONTROLLER  
RJ45-04  
BLUE/WHITE  
RJ45-08  
ORANGE/WHITE  
RJ45-01  
BROWN  
FS-8917-16  
Connect to one of the RS-232  
Ports on the FieldServer  
8
1
FieldServer  
P1  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 6 of 35  
4.  
Configuring the FieldServer as a McQuay Micro Tech Open Protocol Client  
For a detailed discussion on FieldServer configuration, please refer to the FieldServer Configuration  
Manual. The information that follows describes how to expand upon the factory defaults provided in the  
configuration files included with the FieldServer. (See “.csv” sample files provided with the FieldServer).  
This section documents and describes the parameters necessary for configuring the FieldServer to  
communicate with a McQuay Micro Tech Open Protocol Server.  
The configuration file tells the FieldServer about its interfaces, and the routing of data required. In order to  
enable the FieldServer for McQuay Micro Tech Open Protocol communications, the driver independent  
FieldServer buffers need to be declared in the “Data Arrays” section, the destination device addresses  
need to be declared in the “Client Side Nodes” section, and the data required from the Servers needs to  
be mapped in the “Client Side Map Descriptors” section. Details on how to do this can be found below.  
Note that in the tables, * indicates an optional parameter, with the bold legal value being the default.  
4.1.  
Data Arrays  
Section Title  
Data_Arrays  
Column Title  
Function  
Legal Values  
Up to 15 alphanumeric  
characters  
Data_Array_Name  
Provide name for Data Array  
Float, Bit, UInt16, SInt16,  
Provide data format. Each Data Array can Packed_Bit, Byte,  
Data_Format  
only take on one format.  
Packed_Byte,  
Swapped_Byte  
Number of Data Objects. Must be larger  
than the data storage area required for  
the data being placed in this array.  
Data_Array_Length  
1-10,000  
Example  
// Data Arrays  
//  
Data_Arrays  
Data_Array_Name  
DA_AI_01  
DA_AO_01  
DA_DI_01  
,Data_Format  
,UInt16  
,UInt16  
,Bit  
,Data_Array_Length  
,200  
,200  
,200  
,200  
DA_DO_01  
,Bit  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 7 of 35  
4.2.  
Client Side Connection Descriptors  
Section Title  
Connections  
Column Title  
Function  
Specify which port the device is  
connected to the FieldServer  
Legal Values  
P1-P8, R1-R21  
Port  
300, 1200, 2400, 4800 and 9600  
baud (Vendor limitation).  
Even (Vendor limitation)  
7 (Vendor limitation)  
1
MCQ, McQuay  
None  
0-32000 seconds, 1 second  
Baud*  
Specify baud rate  
Parity*  
Specify parity  
Specify data bits  
Specify stop bits  
Specify protocol used  
Specify hardware handshaking  
Time between internal polls  
Data_Bits*  
Stop_Bits*  
Protocol  
Handshaking*  
Poll Delay*  
Example  
// Client Side Connections  
Connections  
Port  
P1  
,Baud  
,9600  
,Parity  
,Even  
,Data_Bits  
,7  
,Protocol  
,McQuay  
,Handshaking ,Poll_Delay  
,None ,0.100s  
1
Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction  
manual for details of the ports available on specific hardware.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 8 of 35  
Legal Values  
4.3.  
Client Side Node Descriptors  
Section Title  
Nodes  
Column Title  
Function  
Provide name for Node  
Up to 32  
alphanumeric  
characters  
Node_Name  
Network address of the device being polled. If the  
network address field is set to $00FF, the controller will  
respond to the packet without regard to its own internal  
network address  
Node_ID  
Route  
0-255  
This parameter must be used If units are connected to  
the FieldServer via a routing device e.g. OPM. The  
network address consists of the OPM address and the  
unit address.  
Protocol  
Port  
Specify protocol used  
Specify which port the device is connected to the  
FieldServer  
MCQ, McQuay  
P1-P8, R1-R22  
200CFC,  
100CFC,  
050RPC,  
001ASC,  
000SCU,  
The name of the McQuay Equipment type being polled.  
Select one from the list on the left. The equipment type  
must be known for the driver to operate correctly.  
PLC_Type  
Password  
Type-Unknown  
Ascii characters  
only.  
Maximum of 8 characters.  
Example 1 of 2  
// Client Side Nodes  
// (No routing device used)  
Nodes  
Node_Name  
Chiller  
,Node_ID  
,1  
,Protocol  
,McQuay  
,Port  
,P1  
,Password  
,Abcdefgh  
,PLC_Type  
,200CFC  
Example 2 of 2  
// Client Side Nodes  
// (Routing device with address 3 used)  
Nodes  
Node_Name  
Chiller1  
,Node_ID  
,66  
,Route  
,3  
,Protocol  
,McQuay  
,Port  
,P1  
,Password  
,Abcdefgh  
,PLC_Type  
,200CFC  
2
Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction  
manual for details of the ports available on specific hardware.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 9 of 35  
4.4.  
4.4.1.  
Client Side Map Descriptors  
FieldServer Related Map Descriptor Parameters  
Column Title  
Function  
Legal Values  
Up to 32 alphanumeric  
characters  
Map_Descriptor_Name  
Name of this Map Descriptor  
Name of Data Array where  
data is to be stored in the  
FieldServer  
One of the Data Array names  
from “Data Array” section  
above  
Data_Array_Name  
0 to maximum specified in  
“Data Array” section above  
Data_Array_Offset  
Function  
Starting location in Data Array  
Function of Client Map  
Descriptor  
Rdbc, Wrbc, Wrbx  
4.4.2.  
Driver Related Map Descriptor Parameters  
Function  
Column Title  
Legal Values  
One of the node  
names specified in  
“Client Node  
Node_Name  
Length  
Name of Node to fetch data from  
Descriptor” above  
Length of Map Descriptor. Only one data field can be  
read or written per poll/response sequence, thus driver  
assumes a length of 1.  
Set to 1 except  
when reading a  
direct address.  
The name of the data field of interest. Each address  
with meaningful data in the McQuay device has a  
name. The field names are defined in a specification  
for each device type. If the field name is unknown, the  
Address can be defined. Refer to Appendix A.4 for  
further information.  
‘Everything’ or  
select a field name  
from Table 2  
Field_Name  
If set to No then the driver stores the raw values, if set  
to Yes, the data is scaled before storing. The device  
Device_Scaling  
Yes, No  
scaling applied is shown in Table 1. Note that  
‘Device_Scaling’ has no meaning when writing to a  
McQuay device.  
4.4.3.  
Timing Parameters  
Column Title  
Scan_Interval  
Function  
Rate at which data is polled  
Legal Values  
>0.1s  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 12 of 35  
5.  
Configuring the FieldServer as a McQuay Micro Tech Open Protocol Server  
5.1.  
Server Side Connection Descriptors  
Section Title  
Connections  
Column Title  
Function  
Specify which port the device is  
connected to the FieldServer  
Legal Values  
P1-P8, R1-R23  
Port  
300, 1200, 2400, 4800 and 9600  
baud (Vendor limitation)  
Baud*  
Specify baud rate  
Parity*  
Specify parity  
Even (Vendor limitation)  
Data_Bits*  
Specify data bits  
7 (Vendor limitation)  
Stop_Bits*  
Protocol  
Specify stop bits  
1
Specify protocol used  
Specify hardware handshaking  
MCQ, McQuay  
None  
Handshaking*  
Example  
// Server Side Connections  
Connections  
Port  
P1  
,Baud  
,9600  
,Parity  
,Even  
,Data_Bits  
,7  
,Protocol  
,McQuay  
,Handshaking ,Poll_Delay  
,None  
,0.100s  
3
Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction  
manual for details of the ports available on specific hardware.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  
McQuay Micro Tech Open Protocol Driver Manual  
Page 13 of 35  
5.2.  
Server Side Node Descriptors  
Section  
Title  
Nodes  
Column  
Title  
Function  
Legal Values  
Up to 32  
Node_Name Provide name for node  
Network address of the device being polled. If the network  
alphanumeric  
characters  
Node_ID  
address field is set to $00FF, the controller will respond to the  
packet without regard to its own internal network address  
This parameter must be used If units are connected to the  
FieldServer via a routing device e.g. OPM. The network address  
consists of the OPM address and the unit address.  
0-255  
Route  
Protocol  
Specify protocol used  
MCQ, McQuay  
P1-P8, R1-R24  
Specify which port the device is connected to the FieldServer.  
This parameter is optional for Server side nodes. The reason is  
that when a poll is received on any port an attempt will be made  
to match it against any Map Descriptor/node irrespective of the  
port. If emulating more than one node with the same address,  
however, the Nodes must be linked to specific ports.  
Port*  
200CFC,  
100CFC,  
050RPC,  
001ASC,  
000SCU,  
This parameter has no meaning for a Server but it must be  
specified to allow the driver to complete its configuration file  
validation.  
PLC_Type  
Type-Unknown  
This parameter is ignored for a Server. Although every poll  
contains a password, this driver does no password validation  
when configured as a Server.  
Ascii characters  
only.  
Password*  
Example  
// Server Side Nodes  
Nodes  
Node_Name  
FieldServer  
,Node_ID  
,11  
,Protocol  
,McQuay  
,PLC_Type  
,200CFC  
4
Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction  
manual for details of the ports available on specific hardware.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 14 of 35  
5.3.  
5.3.1.  
Server Side Map Descriptors  
FieldServer Specific Map Descriptor Parameters  
Column Title  
Function  
Legal Values  
Up to 32 alphanumeric  
characters  
Map_Descriptor_Name  
Name of this Map Descriptor  
Name of Data Array where  
data is to be stored in the  
FieldServer  
One of the Data Array names  
from “Data Array” section  
above  
Data_Array_Name  
0 to maximum specified in  
“Data Array” section above  
Data_Array_Offset  
Function  
Starting location in Data Array  
Function of Client Map  
Descriptor  
Passive  
5.3.2.  
Driver Specific Map Descriptor Parameters  
Column Title  
Function  
Legal Values  
One of the node names  
specified in “Client Node  
Descriptor” above  
Name of Node to fetch data  
from  
Node_Name  
This commonly used Field Server parameter has no meaning for  
this driver.  
Data_Type  
Length  
Length of Map Descriptor  
1-10000  
Starting address of read block  
Address  
1 (Any positive integer)  
Addresses cannot be specified  
in hexadecimal format.  
5.3.3.  
Timing Parameters  
Column Title  
Function  
Legal Values  
Specifies time Server side  
waits before responding to  
Client that node is offline on  
FieldServer Client side.  
Scada_Hold_Timeout  
>1.0s  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Appendix A. Advanced Topics  
Page 17 of 35  
Appendix A.1.  
User Scaling:  
Scaling  
The user can specify scaling in the configuration file which allows a value to be scaled before being  
stored in a Data Array or after being extracted from a data for writing to McQuay device. This scaling  
is specified by using the following keywords in Map Descriptor definition.  
Data_Array_Low_Scale,  
Data_Array_High_Scale,  
Device_Low_Scale,  
Device_High_Scale…..  
Device Scaling:  
The raw values read from a McQuay device may be treated as raw values or they may be scaled.  
Device scaling is the term used to describe the hard-coded scaling specified by McQuay for each  
data field. By applying device scaling the user can avoid details or knowledge of the scaling and used  
the converted value directly.  
If this scaling is required then use the Device_Scaling parameter (see 4.4.2)  
There are 5 device scaling methods. X refers to the raw value obtained from the McQuay device.  
The method that will be applied to each field is shown in the following table.  
Table 1 – Device Scaling Method applied to each Field  
Method Id.  
Device Scaling Method  
X
X / 10  
( X – 1000 ) / 10  
X / 2  
X - 100  
( X – 100 ) / 10  
( X / 5 ) + 20  
( X / 5 ) + 55  
( X / 5 )  
1
2
3
4
5
6
7
8
9
10  
( X / 5 ) - 100  
Note that when device scaling is applied it is applied without consideration of the raw value. Where  
the raw value has a special meaning (available in the McQuay packet documents for the equipment  
type of interest); this driver does not apply any special consideration to these special values.  
As a Client: - Device and User scaling may be applied.  
As a Server. Device Scaling and User scaling is not applied. The raw value written to any data  
location is stored as is and the raw value read from a Data Array used in formatting the response to  
a read.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Data Field Name Tables♣  
Page 18 of 35  
Appendix A.2.  
If you do not know the field name it is possible to read the device by specifying the address only.  
More information is provided in Appendix A.4  
Table 2 – Equipment Type: 200CFC 200 Series Centrifugal Chiller  
Read/  
Write/ Field Name  
Both  
Device  
Array  
Location  
Number Base  
of Bytes Address  
Scaling  
Method5  
1
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
Model  
3
1
1
2
1
1
1
2
2
1
2
2
2
2
2
2
1
2
2
2
1
2
2
2
2
2
2
1
1
2
2
0x0A08  
0x0A0B  
0x0A0C  
0x0A0D  
0x0A0F  
0x084B  
0x040C  
0x046A  
0x044C  
0x044A  
0x085F  
0x0851  
0x043A  
0x046E  
0x046C  
0x0484  
0x083F  
0x048A  
0x0454  
0x0456  
0x0425  
0x085A  
0x085D  
0x0440  
0x0466  
0x0480  
0x0452  
0x045F  
0x083D  
0x0488  
0x0436  
1
1
1
1
1
1
1
2
1
1
1
1
3
2
2
2
1
2
3
3
1
1
1
2
3
2
1
1
1
2
3
4
Refrigerant  
5
Units of Measure  
6
Software Version  
8
Software Revision  
11  
12  
13  
15  
17  
18  
20  
22  
24  
26  
28  
30  
31  
33  
35  
37  
38  
40  
42  
44  
46  
48  
50  
51  
52  
54  
Chiller Unit Temperature Type  
Communication Status  
Compressor Lift Pressure  
Compressor Motor Current  
Compressor Motor Current Percent  
Compressor Number of Starts  
Compressor Operating Hours  
Compressor Suction Temperature  
Compressor Superheat - Discharge  
Compressor Superheat -Suction  
Condenser Approach Temperature  
Condenser Heat Recovery Unit Present  
Condenser Heat Recovery Temperature - Delta  
Condenser Heat Recovery Water Temp. - Entering  
Condenser Heat Recovery Water Temp. - Leaving  
Condenser Pump Status  
Condenser Pump # 1 Operating Hours  
Condenser Pump # 2 Operating Hours  
Condenser Refrigerant Pressure  
Condenser Refrigerant Temperature  
Condenser Subcooling Temperature  
Condenser Water Flow Rate  
Condenser Water Flow Status  
Condenser Water Rate Sensor  
Condenser Water Temperature - Delta  
Condenser Water Temperature - Entering  
Additional information may be obtained from McQuay International. Request the following document.  
MicroTech® Series 200 Centrifugal Chiller Data Communications Packet for Open Protocol™  
Cent2_22.doc  
5 See Appendix A.1.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  
McQuay Micro Tech Open Protocol Driver Manual  
Page 19 of 35  
Read/  
Array  
Device  
Number Base  
of Bytes Address  
Write/ Field Name  
Location  
Scaling  
Both  
Method5  
56  
58  
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
b
b
b
b
Condenser Water Temperature - Leaving  
Cooling Tower Control  
2
1
1
1
2
2
1
2
2
2
2
2
1
1
2
2
2
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
1
1
1
1
0x0434  
0x0926  
0x049A  
0x049B  
0x043E  
0x0482  
0x0423  
0x0854  
0x0857  
0x0438  
0x0464  
0x0450  
0x045E  
0x083C  
0x0486  
0x0432  
0x0430  
0x1C00  
0x0861  
0x0862  
0x0863  
0x0864  
0x0865  
0x0866  
0x0867  
0x0868  
0x0869  
0x086A  
0x043C  
0x0446  
0x0468  
0x04AC  
0x0442  
0x0444  
0x0474  
0x083E  
0x044B  
0x0420  
0x0475  
0x041E  
0x0477  
0x0476  
3
1
1
1
3
2
1
1
1
2
3
1
1
1
2
3
3
1
1
1
1
1
1
1
1
1
1
1
3
2
2
2
3
3
2
1
1
1
1
1
1
4
59  
Cooling Tower Stage  
60  
Cooling Tower Valve Position  
Discharge Refrigerant Temperature  
Evaporator Approach Temperature  
Evaporator Pump Status  
Evaporator Pump #1 Operating Hours  
Evaporator Pump #2Operating Hours  
Evaporator Refrigerant Pressure  
Evaporator Refrigerant Temperature  
Evaporator Water Flow Rate  
Evaporator Water Flow Status  
Evaporator Water Rate Sensor  
Evaporator Water Temperature - Delta  
Evaporator Water Temperature - Entering  
Evaporator Water Temperature - Leaving  
Fault - Current Active  
61  
63  
65  
66  
68  
70  
72  
74  
76  
77  
78  
80  
82  
84  
85  
Last Start Hour  
86  
Last Start Minute  
87  
Last Start Month  
88  
Last Start Date  
89  
Last Start Year  
90  
Last Stop Hour  
91  
Last Stop Minute  
92  
Last Stop Month  
93  
Last Stop Date  
94  
Last Stop Year  
95  
Liquid Line Refrigerant Temperature  
Oil Pressure - Feed  
97  
99  
Oil Pressure - Net  
101  
103  
105  
107  
108  
109  
110  
111  
112  
113  
114  
Oil Pressure - Vent  
Oil Temperature - Feed  
Oil Temperature - Sump  
Outdoor Air Temperature - Network  
Refrigerant Detection Sensor  
Refrigerant Leak Detection Limit  
Unit Status  
Capacity Limit Percent  
Clear Current Fault  
Chiller Operation Mode  
Chilled Water Temperature Setpoint  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  
McQuay Micro Tech Open Protocol Driver Manual  
Page 20 of 35  
Read/  
Array  
Device  
Number Base  
of Bytes Address  
Write/ Field Name  
Location  
Scaling  
Both  
Method5  
115  
116  
117  
118  
119  
120  
121  
122  
123  
124  
125  
126  
127  
128  
129  
130  
131  
132  
133  
134  
b
b
b
b
b
b
b
b
b
r
Communications Signal  
Outdoor Air Temperature - BAS  
Master/Server Setpoint  
Lead/Lag Mode Setpoint  
Enable Lag Setpoint  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0x047D  
0x0473  
0x093C  
0x093D  
0x093E  
0x093F  
0x0942  
0x0948  
0x0949  
0x0401  
0x0402  
0x0403  
0x0404  
0x0405  
0x0406  
0x0407  
0x0408  
0x900  
1
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
4
Disable Lag Setpoint  
Lag Standby Setpoint  
Lead/Lag Switch Setpoint (Day)  
Lead/Lag Switch Setpoint (Hour)  
Lead/Lag Status  
r
Lead Unit  
r
Lead Unit Status  
r
Lag Unit Status  
r
Lead Motor Current  
r
Lag Motor Current  
r
Lead Status  
r
Lag Status  
b
b
r
Chiller Control mode  
Chilled Water Temperature Local Setpoint  
Chilled Water Temperature – Active Setpoint  
0x901  
0x905  
Table 3 - Equipment Type: 050RPC Reciprocating Chiller  
Read/  
Device  
Array  
Number Base  
of BytesAddress  
Write/Field Name  
Location  
Scaling  
Both  
Method6  
3
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
Circuit #1 Condenser Approach Temperature  
Circuit #1 Condenser Pressure  
2
2
2
2
2
2
1
2
2
1
1
2
2
2
2
0x0497  
0x0467  
0x0822  
0x0820  
0x0826  
0x0824  
0x0831  
0x0463  
0x0479  
0x0833  
0x0428  
0x049B  
0x0475  
0x0493  
0x0499  
2
2
2
2
6
6
1
2
6
1
1
2
6
2
2
5
7
Circuit #1 Alarm Conditions: Condenser Pressure  
Circuit #1 Alarm Conditions: Evaporator Pressure  
Circuit #1 Alarm Conditions: Liquid Line Temp  
Circuit #1 Alarm Conditions: Suction Temperature  
Circuit #1 Current Alarm  
9
11  
13  
14  
16  
18  
19  
20  
22  
24  
26  
28  
Circuit #1 Evaporator Pressure  
Circuit #1 Liquid Line Temperature  
Circuit #1 Previous Alarm  
Circuit #1 Status  
Circuit #1 Subcooling Temperature  
Circuit #1 Suction Temperature  
Circuit #1 Superheat Temperature  
Circuit #2 Condenser Approach Temperature  
6 See Appendix A.1  
.
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  
McQuay Micro Tech Open Protocol Driver Manual  
Page 21 of 35  
Read/  
Array  
Device  
Number Base  
of BytesAddress  
Write/Field Name  
Location  
Scaling  
Both  
Method6  
30  
32  
34  
36  
38  
39  
41  
43  
44  
45  
47  
49  
51  
53  
55  
57  
59  
61  
63  
65  
67  
69  
71  
73  
75  
76  
78  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
r
r
Circuit #2 Condenser Pressure  
Circuit #2 Alarm Conditions: Condenser Pressure  
Circuit #2 Alarm Conditions: Evaporator Pressure  
Circuit #2 Alarm Conditions: Liquid Line Tempe  
Circuit #2 Alarm Conditions: Suction Temperature  
Circuit #2 Current Alarm  
2
2
2
2
2
1
2
2
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
0x0469  
0x082A  
0x0828  
0x082E  
0x082C  
0x0832  
0x0465  
0x047B  
0x0834  
0x0429  
0x049D  
0x0477  
0x0495  
0x0862  
0x086A  
0x0864  
0x086C  
0x0866  
0x086E  
0x0868  
0x0870  
0x0470  
0x0472  
0x046E  
0x0461  
0x08B4  
0x047D  
0x042B  
0x0474  
0x0427  
0x091A  
0x091B  
0x097D  
0x090D  
0x0905  
0x090C  
0x044F  
0x044D  
0x044E  
0x090B  
2
2
2
6
6
1
2
6
1
1
2
6
2
1
1
1
1
1
1
1
1
6
6
6
6
1
6
1
1
1
1
1
1
4
4
4
1
1
1
1
r
r
r
r
r
Circuit #2 Evaporator Pressure  
Circuit #2 Liquid Line Temperature  
Circuit #2 Previous Alarm  
r
r
r
Circuit #2 Status  
r
Circuit #2 Subcooling Temperature  
Circuit #2 Suction Temperature  
Circuit #2 Superheat Temperature  
Compressor #1 Operating Hours  
Compressor #1 Starts  
r
r
r
r
r
Compressor #2 Operating Hours  
Compressor #2 Starts  
r
r
Compressor #3 Operating Hours  
Compressor #3 Starts  
r
r
Compressor #4 Operating Hours  
Compressor #4 Starts  
r
r
Condenser Entering Water Temperature  
Condenser Leaving Water Temperature  
Evaporator Entering Water Temperature  
Evaporator Leaving Water Temperature  
Heat/Cool Switch  
r
r
r
r
r
OaT  
r
Stage of Capacity  
r
Unit % RLA  
r
Unit Status  
b
b
b
b
b
b
b
b
b
b
Clear Circuit #1 Alarm  
Clear Circuit #2 Alarm  
Condenser Leaving Water Temperature Setpoint  
Evaporator Entering Water Temperature Setpoint  
Evaporator Leaving Water Temperature Setpoint  
Maximum Water Reset Setpoint  
Network Command  
Network Demand Limit  
Network Leaving Water Temperature Reset  
Reset Option Setpoint  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  
McQuay Micro Tech Open Protocol Driver Manual  
Page 22 of 35  
Table  
Array  
4
- Equipment Type: 100CFC 100 Series Centrifugal Chiller  
Read/  
Write/Field Name  
Both  
Device  
Number Base  
of BytesAddress  
Scaling  
Location  
Method7  
1
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
Alarm Contact  
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
0x0217  
0x0418  
0x0420  
0x0423  
0x0407  
0x0403  
0x041C  
0X021C  
0x0411  
0x0408  
0X050F  
0x0218  
0x0219  
0x0428  
0x0834  
0x0835  
0x0836  
0x0837  
0x0838  
0x0839  
0x083A  
0x083B  
0x0405  
0x041E  
0x0401  
0x041A  
0x0438  
0x050E  
0X021B  
0x0410  
0x0402  
0x041B  
0X050F  
0X050E  
0x0212  
0x0406  
0x041F  
0x0400  
1
1
7
1
1
1
7
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
8
1
1
1
1
1
1
1
7
1
1
1
1
8
1
2
Approach Condenser  
3
Calculated Leaving Evaporator Temp Setpoint  
Calculated Network Amp Limit Setpoint  
Compressor Discharge Temp.  
Compressor Suction Temp. - Lo Resolution  
Compressor Suction Temp. - Hi Resolution  
Condenser Pump  
4
5
6
7
8
9
Condenser Refrigerant Pressure  
Condenser Refrigerant Temp.  
Condenser Water Flow Switch  
Cooling Tower Stage 1  
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  
Cooling Tower Stage 2  
Current Fault  
Fault Last  
Fault 2  
Fault 3  
Fault 4  
Fault 5  
Fault 6  
Fault 7  
Fault 8  
Entering Condenser Water Temp. - Lo Resolution  
Entering Condenser Water Temp. - Hi Resolution  
Entering Evaporator Water Temp. - Lo Resolution  
Entering Evaporator Water Temp. - Hi Resolution  
Entering Water Reset  
Evaporator Low Pressure Switch  
Evaporator Pump  
Evaporator Refrigerant Pressure  
Evaporator Refrigerant Temp. - Lo Resolution  
Evaporator Refrigerant Temp. - Hi Resolution  
Evaporator Water Flow Switch  
High Discharge Pressure Switch  
Hot Gas Solenoid  
Leaving Condenser Water Temp. - Lo Resolution  
Leaving Condenser Water Temp. - Hi Resolution  
Leaving Evaporator Water Temp. - Lo Resolution  
7 See Appendix A.1  
.
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  
McQuay Micro Tech Open Protocol Driver Manual  
Page 23 of 35  
Read/  
Array  
Device  
Number Base  
of BytesAddress  
Write/Field Name  
Location  
Scaling  
Both  
Method7  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
54  
55  
56  
58  
59  
60  
61  
62  
63  
64  
65  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
b
b
b
Leaving Evaporator Water Temp. - Hi Resolution  
LED Front Panel  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0x0419  
0x021F  
0x0412  
0x0216  
0x0404  
0x041D  
0x0417  
0x0211  
0x043B  
0X043D  
0x0901  
0X043C  
0x0213  
0x021E  
0x0435  
0x040C  
0x050E  
0X0432  
0X040D  
0x0409  
0x0415  
0x0215  
0X050E  
0X021D  
0X040A  
0x0430  
0X050E  
0X043E  
0x0439  
0X040B  
0X050F  
0X043A  
0X050F  
0X050F  
0x0416  
0X050E  
0x0424  
0x0210  
0X050F  
0x0214  
0X042A  
0x0801  
0x0800  
7
1
1
1
1
8
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
Lift Pressure  
Liquid Injection Solenoid  
Liquid Line Refrigerant Temp. - Lo Resolution  
Liquid Line Refrigerant Temp. - Hi Resolution  
Liquid Subcool  
Load Solenoid  
Low Evaporator Pressure Limit  
Manual Amp Limit  
Manual Amp Limit Setpoint  
Maximum Amp Limit  
Motor Control Latch Relay  
Motor Control Relay  
Motor Current Amps  
Motor Current Percent  
Motor Temperature Switch  
Number of Starts  
Oil Delta Pressure  
Oil Feed Temp.  
Oil Gage Pressure  
Oil Heater  
Oil Pressure Differential Switch  
Oil Pump  
Oil Sump Temp.  
Operating Hours  
Panel Rocker Switch  
Remote Amp Limit  
Remote Chilled Water Reset  
Remote Reset or Amp Limit Signal  
Remote Start/Stop Switch  
Soft Load Limit  
Starter Fault Switch  
Starter Transition Switch  
Superheat  
Surge Guard Switch  
Unit Status  
Unload Solenoid  
Vanes Closed Switch  
Watchdog Output  
Clear Current Fault  
Comm Port Baud Rate  
Correct Checksum  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  
McQuay Micro Tech Open Protocol Driver Manual  
Page 24 of 35  
Read/  
Array  
Device  
Number Base  
of BytesAddress  
Write/Field Name  
Location  
Scaling  
Both  
Method7  
85  
86  
87  
88  
89  
90  
91  
92  
93  
94  
b
b
b
b
b
b
b
b
b
b
Leaving Evaporator Temperature Setpoint  
Maximum Chilled Water Reset Setpoint  
Network Amp Reset  
1
1
1
1
1
1
1
1
1
1
0x0900  
0x0820  
0x0450  
0X044F  
0x0451  
0x0822  
0x0204  
0x0824  
0x0826  
0x0827  
7
9
1
1
1
1
1
1
9
9
Network Chilled Water Reset  
Network Start Stop  
Reset Option  
Soft Reset  
Start Mode  
Startup Differential Temp.  
Shutdown Differential Temp.  
Table 5 - Equipment Type : 001ASC Reciprocating Chiller  
Read/  
Device  
Array  
Number Base  
of Bytes Address  
Write/Field Name  
Location  
Scaling  
Both  
Method8  
1
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
Active Chilled Water Temperature Setpoint  
Ckt#1 Condenser Pressure  
1
2
1
2
2
2
1
2
2
2
1
1
2
2
1
2
2
2
2
2
2
2
2
1
1
0x045A  
0x0467  
0x1F13  
0x1F09  
0x1F0F  
0x1F07  
0x1F14  
0x1F0D  
0x1F11  
0x1F0B  
0x08B9  
0x1F02  
0x0463  
0x0479  
0x0428  
0x04DF  
0x0475  
0x04D7  
0x0862  
0x086A  
0x046E  
0x0461  
0x047D  
0x042B  
0x0427  
4
2
2
4
Ckt#1 Alarm Conditions: Capacity  
Ckt#1 Alarm Conditions: Condenser Pressure  
Ckt#1 Alarm Conditions: Evap Leaving Water Temp  
Ckt#1 Alarm Conditions: Evap Pressure  
Ckt#1 Alarm Conditions: Fan Stage  
Ckt#1 Alarm Conditions: Liquid Line Temperature  
Ckt#1 Alarm Conditions: Outside Air Temp  
Ckt#1 Alarm Conditions: Suction Temperature  
Ckt#1 Current Alarm  
1
5
2
7
1
9
2
11  
12  
14  
16  
18  
19  
20  
22  
24  
25  
27  
29  
31  
33  
35  
37  
39  
41  
42  
1
10  
10  
10  
1
Ckt#1 Current Alarm HourMinuteMonthDateYear  
Ckt#1 Evaporator Pressure  
1
2
Ckt#1 Liquid Line Temperature  
Ckt#1 Status  
10  
1
Ckt#1 Subcooling Temperature  
Ckt#1 Suction Temperature  
2
10  
2
Ckt#1 Superheat Temperature  
Compressor #1 Operating Hours  
Compressor #1 Starts  
1
1
Evaporator Entering Water Temperature  
Evaporator Leaving Water Temperature  
Outdoor Air Temperature  
10  
10  
10  
1
Stage of Cooling  
Unit Status  
1
8 See Appendix A.1  
.
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  
McQuay Micro Tech Open Protocol Driver Manual  
Page 25 of 35  
Read/  
Array  
Device  
Number Base  
of Bytes Address  
Write/Field Name  
Location  
Scaling  
Both  
Method8  
43  
44  
45  
46  
47  
48  
49  
50  
b
b
b
b
b
b
b
b
Clear Ckt#1 Alarm  
1
1
1
1
1
1
1
1
0x091A  
0x090D  
0x0905  
0x090C  
0x044F  
0x044D  
0x044E  
0x090B  
1
2
2
2
1
1
1
1
Evaporator Entering Water Temperature Setpoint  
Evaporator Leaving Water Temperature Setpoint  
Maximum Chilled Water Reset Setpoint  
Network Command  
Network Demand Limit  
Network Evaporator Leaving Water Temp Reset  
Reset Option Setpoint  
Table 6 - Equipment Type : Self-Contained Units (SCUs)  
Read/  
Device  
Array  
Number Base  
of Bytes Address  
Write/Field Name  
Location  
Scaling  
Both  
Method9  
1
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
Air Velocity  
1
1
1
1
1
1
2
1
2
1
2
1
2
1
2
1
2
1
1
1
1
1
1
1
2
1
1
0x0434  
0x045C  
0x0801  
0x1301  
0x0435  
0x081C  
0x08AF  
0x081D  
0x08B2  
0x081E  
0x08B5  
0x081F  
0x08B8  
0x0820  
0x08BB  
0x0821  
0x08BE  
0x0432  
0x043F  
0x044A  
0x042F  
0x0435  
0x0434  
0x045A  
0x08C4  
0x042E  
0x042C  
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
2
Airflow Status  
3
Current Alarm  
4
Previous Alarm  
5
Building Static Pressure  
Compressor #1 Alarm  
Compressor #1 Operating Hours  
Compressor #2 Alarm  
Compressor #2 Operating Hours  
Compressor #3 Alarm  
Compressor #3 Operating Hours  
Compressor #4 Alarm  
Compressor #4 Operating Hours  
Compressor #5 Alarm  
Compressor #5 Operating Hours  
Compressor #6 Alarm  
Compressor #6 Operating Hours  
Control Temperature  
6
7
9
10  
12  
13  
15  
16  
18  
19  
21  
22  
24  
25  
26  
27  
28  
29  
30  
31  
33  
34  
Cool Stage  
Cooling Control Status  
Dew Point Temperature  
Duct Static Pressure #1  
Duct Static Pressure #2  
Economizer Enable  
Economizer Operating Hours  
Economizer Position  
Entering Water Temperature  
9 See Appendix A.1  
.
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 26 of 35  
Read/  
Array  
Device  
Number Base  
of Bytes Address  
Write/Field Name  
Location  
Scaling  
Both  
Method9  
35  
37  
39  
40  
41  
42  
43  
45  
46  
47  
48  
49  
50  
51  
52  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
r
r
Fan - High Speed Operating Hours  
Fan - Low Speed Operating Hours  
Fan Operation  
2
2
1
1
1
1
2
1
1
1
1
1
1
1
2
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
0x08AC  
0x08A9  
0x0462  
0x0436  
0x043E  
0x044C  
0x08C1  
0x042D  
0x042B  
0x0436  
0x04BB  
0x0470  
0x045F  
0x0429  
0x08C7  
0x0431  
0x0431  
0x0428  
0x042A  
0x0427  
0x045E  
0x0488  
0x043D  
0x0436  
0x0445  
0x045B  
0x0461  
0x0923  
0x04CE  
0x048A  
0x044F  
0x0926  
0x088D  
0x0907  
0x0878  
0x090E  
0x094E  
0x0949  
0x094D  
0x0917  
0x089B  
0x0932  
0x0931  
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
r
r
Fan Speed  
r
Heat Stage  
r
Heating Control Status  
Heating Operating Hours  
Leaving Water Temperature  
Mixed Air Temperature  
Motor Amps  
r
r
r
r
r
Motor Speed  
r
Network Communications Status  
Outdoor Air Damper Status  
Outdoor Air Temperature  
Override Hours  
r
r
r
r
Refrigerant Pressure  
r
Relative Humidity  
r
Return Air Temperature  
Space Temperature  
r
r
Supply Air Temperature  
Supply Fan Status  
r
r
Unit Enabled Status  
r
Unit Status  
r
Variable Inlet Vane Position  
Water Flow Required  
r
r
Water Flow  
r
Water Pump Start/Stop  
Building Static Pressure Setpoint  
Clear Alarm  
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
Clear Alarm Buffer  
Control Mode  
Control Temperature Source  
Cooling Control Deadband  
Cooling Control Setpoint  
Cooling Supply Deadband  
Cooling Supply Setpoint  
Dew Point Deadband  
Dew Point Sensor Type  
Dew Point Setpoint  
Duct Static Pressure Setpoint  
Duct Static/Building Static Pressure Deadband  
Economizer (Air) Changeover Differential  
Economizer (Air) Changeover Temperature Setpoint  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 27 of 35  
Read/  
Array  
Device  
Number Base  
of Bytes Address  
Write/Field Name  
Location  
Scaling  
Both  
Method9  
82  
83  
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
Economizer (Air) Method  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0x083B  
0x091A  
0x0939  
0x08E1  
0x093A  
0x0894  
0x0905  
0x0871  
0x0914  
0x0947  
0x094C  
0x094B  
0x092C  
0x092B  
0x0951  
0x0934  
0x0919  
0x0904  
0x0903  
0x0902  
0x0901  
0x0444  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Economizer (Water) Changeover Temperature Offset  
Fan On Heating Setpoint  
84  
85  
Head Pressure Deadband  
86  
Head Pressure Setpoint  
87  
Heating Control Deadband  
88  
Heating Control Setpoint  
89  
Heating Supply Deadband  
90  
Heating Supply Setpoint  
91  
Humidity Control Type  
92  
Humidity Deadband  
93  
Humidity Setpoint  
94  
Low Entering H20 Comp. Lockout Differential  
Low Entering Water Compressor Lockout Setpoint  
Min Vane Position/Fan Speed  
Minimum Outdoor Air Damper Position  
Minimum Supply Air Temperature Control  
Unoccupied Cooling Space Differential  
Unoccupied Cooling Space Setpoint  
Unoccupied Heating Space Differential  
Unoccupied Heating Space Setpoint  
Water Flow Signal  
95  
96  
97  
98  
99  
100  
101  
102  
103  
Appendix A.3.  
McQuay Equipment Types recognized by the driver.  
Code  
Description  
200CFC  
100CFC  
001ASC  
000SCU  
0050RPC  
200 Series Centrifugal Chiller  
100 Series Centrifugal Chiller  
Air Screw Chiller  
Self Contained Unit  
Reciprocating Chiller  
Appendix A.4.  
Direct Addressing  
Direct addressing allows data to be read from the McQuay device when the field name is unknown.  
McQuay specifies the addresses in hexadecimal notation but they must be specified in the CSV file in  
decimal format. For example, to read McQuay address 0x0400, the address in the CSV file must be  
entered as 1024.  
If reading multiple addressing at once (i.e. if the length is greater than 1) it may be necessary to  
adjust the timeout for the Map Descriptor.  
It is possible to read multiple addresses using one Map Descriptor; however, it is only possible to  
write to a single address.  
The following Map Descriptor parameters will need to be defined in addition to those described in  
section 4.4.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 28 of 35  
5.3.6.  
Driver Related Map Descriptor Parameters  
Normally this  
field is set to  
1 or omitted.  
The address in the McQuay device that contains the data of  
interest.  
Address*  
This parameter is used with direct addressing. When  
reading, up to 4 consecutive address locations in the  
McQuay device can be combined and stored in a single  
Data Array element. When writing, one value from the  
Data Array may be sent to up to 4 consecutive address  
locations in the McQuay device.  
Bytes_Per_Field*  
1,2,3,4  
Refer to examples on the following pages.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 31 of 35  
Appendix A.8.  
Statistics  
The driver reports statistics according to the FieldServer standards. The following notes describe  
some aspects of standard statistic reporting which are peculiar to this driver.  
NAK  
CHECKSUM  
NOISE  
NO START  
PROTOCOL  
Each time a negative acknowledgement message is received.  
Each time that a message is received that contains a non-ASCII character.  
An acknowledgement message contains an unrecognized code.  
Each time a message is received that doesn’t begin with a space.  
All other errors are reported as protocol errors  
In addition to the standard FieldServer communication statistics described above and in the  
FieldServer User’s Manual, this driver can also expose some driver statistics by writing data to a Data  
Array. A special Map Descriptor is required. The driver recognizes the Map Descriptor by its name  
which must be "McQuay-stats”.  
The driver stores the following data. The location in the Data Array is obtained by multiplying the  
port number by 50 and then using the location offset indicated in the table below.  
Location  
0
Statistic  
MCQ_STAT_PASSWORD  
10  
MCQ_STAT_NAK  
11  
MCQ_STAT_NOISE  
12  
MCQ_STAT_NOISE_CODE  
13  
MCQ_STAT_NON_ASCII_CHARS  
MCQ_STAT_BAD_START_BYTE  
MCQ_STAT_OTHER_CMPLT_ERR  
MCQ_STAT_CLIENT_BYTES_RCVD  
MCQ_STAT_CLIENT_FRAGS_RCVD  
MCQ_STAT_CLIENT_MSGSS_RCVD  
MCQ_STAT_CLIENT_BYTES_SENT  
MCQ_STAT_CLIENT_FRAGS_SENT  
MCQ_STAT_CLIENT_MSGSS_SENT  
MCQ_STAT_SERVER_BYTES_SENT  
MCQ_STAT_SERVER_MSGSS_SENT  
MCQ_STAT_SERVER_NAKS_SENT  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
The following example shows how this special Map Descriptor can be configured. You can copy this  
section of text directly into your CSV file.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 33 of 35  
Appendix B. Error Messages  
Those messages marked with an * are only printed once even if they occur repeatedly.  
Error Message  
Action  
The length of the Map Descriptor used to expose driver statistics is  
too short. Set the length to at least 1000. You can ignore this  
message – the driver will abandon excess statistics.  
McQuay:#1 FYI. The MapDesc  
called <%s> is too short  
McQuay:#2 FYI. You could  
have used a MapDesc called  
<%s> to expose diagnostic info.  
You can safely ignore this message. It is a prompt. Refer to  
Appendix A.8.  
This is a reminder that a password is expected when a node is  
defined. Refer to sections 4.3 or 5.2. Even though password  
checking is not enforced when the driver is configured as a Server,  
the driver expects one to be defined for every node.  
McQuay:#3 FYI. Normally  
passwords are defined for each  
node.  
McQuay:#4 Err. Node list if full. A maximum of 100 McQuay device nodes can be configured per  
Max=%d  
FieldServer. If the limit is reached, call support.  
A node has been provided with two passwords. This is either a  
configuration error or two nodes with the same address are  
connected to different ports. The driver can only store one password  
per node address and cannot use the port number to differentiate  
them. Re-program the McQuay devices to have the same passwords  
if they have the same addresses.  
McQuay:#5 Err. Node=%d has  
more than one password.  
Device Scaling is being applied and the driver doesn’t know how to  
scale a variable. Please submit your configuration file with your  
request for support.  
*McQuay:#9 FYI. Device  
scaling method unknown.  
The driver doesn’t recognize the equipment type specified using the  
PLC_Type parameter in the configuration file. Refer to Appendix A.3  
for a list of valid equipment types.10  
McQuay:#10 Err. Node=%s.  
Equip. type not recognized.  
McQuay:#11 Err. Node=%s.  
Equip. Type not specified.  
McQuay:#13 Err.  
MapDesc=%s. Field Name  
unknown.  
Refer to Sections 4.3, 5.2. and Appendix A.310  
Refer to Appendix A.2 for a list of valid field names. Refer also to  
Sections 4.4 or 5.3.  
McQuay:#14 Err.  
Corrective action is required. When writing to a McQuay device using  
direct addressing the length may only be 110  
MapDesc=%s. Max Len=1 for  
Writes with direct addr.  
McQuay:#15 Err.  
MapDesc=%s. Field  
Name/Address Required.  
Neither a field name nor an address was specified. The driver does  
not know what location to read. Specify a field name from Appendix  
A.2.10  
Each Map Descriptor must be connected to a node. This is done by  
McQuay:#16 Err.  
MapDesc=%s. No Node.  
specifying a node name. 10  
The offset added to the length of the Map Descriptor extends beyond  
the Data Array. Increase the Data Array length. 10  
McQuay:#17 Err.  
MapDesc=%s. Md too short.  
McQuay:#18 Err.  
MapDesc=%s. Cannot write  
'Everything'.  
When using ‘everything’ as a field name the Map Descriptor function  
must be Rdbc or Rdb as this is a read only function.10  
McQuay:#19 do diagnostic 3  
McQuay:#20 do diagnostic 1  
McQuay:#21 do diagnostic 2  
Call FieldServer Technical Support. A developer diagnostic has been  
called and should not have been.  
10  
Correct the configuration by editing the CSV file and downloading it to the FieldServer, then reset the  
FieldServer for the changes to take effect.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
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McQuay Micro Tech Open Protocol Driver Manual  
Page 34 of 35  
Error Message  
Action  
McQuay:#22 Err. Illegal  
Node_ID [%d] - Set to 1  
Check configuration file, a Node_ID is out of range. 11  
If the Node_ID is greater than 255 then this message is printed. In  
versions of the driver prior to 1.02 this was permitted and these  
configurations will operate correctly. In versions since 1.02a the route  
parameter is used to provide the routing device’s address. Convert  
the Node_ID as follows. Divide the old Node_ID by 256. Set the  
Node_ID equal to remainder and set the route equal to the quotient.  
Example; Old Node_ID = 834. 834 div 256 = 3 remainder 66.  
Therefore Route=3 and Node_ID=66.  
McQuay:#23 FYI. Config  
requires non-critical update.  
Read Manual.  
If the Node_ID is > 255 and the Route is specified too then this error  
is printed. The Node_ID should be a number in the range 0 to  
255.Error! Bookmark not defined.  
McQuay:#24 Err. Illegal  
Node_ID/Route  
McQuay:#25 Err. Max Len=1  
when Bytes_Per_Field > 1.  
MD=%s.  
The length parameter must be set to 1 when a Map Descriptor has  
the Bytes_Per_Field parameter specified10  
Legal values for the Bytes_Per_Field parameter are whole numbers  
in the range 1 to 4 inclusive. 10  
McQuay:#26 Err. Max  
Bytes_Per_Field=4. MD=%s.  
This message is printed if a NAK response is received in the first few  
polls to a node. The driver guesses that the reason is that the  
McQuay:#27* Err.  
Response=NAK. Read Manual. Node_ID/route or password has been incorrectly specified in the  
Maybe password or Node_ID  
configuration file. Verify these settings. The message is printed once  
and suppressed for subsequent occurrences. Refer to Appendix C.2  
The message is printed and then suppressed for subsequent  
occurrences, but the NAK stat is incremented for each occurrence.  
The driver is reporting that the McQuay device responded with a NAK  
under different circumstances from msg#27 which is printed if the  
NAK is received during the first few polls. The message indicates that  
the McQuay device could not respond. If the NAK's are occasional,  
assume that noise has corrupted an occasional message. If they  
occur frequently assume a systematic or connection error. Refer to  
Error! Reference source not found. and Appendix C.2.  
McQuay:#28* Err. Device  
responded with a NAK.  
11  
Correct the configuration by editing the CSV file and downloading it to the FieldServer, then reset the  
FieldServer for the changes to take effect.  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  
McQuay Micro Tech Open Protocol Driver Manual  
Appendix C. Troubleshooting  
Page 35 of 35  
Appendix C.1.  
Connection Problems  
The driver produces a timeout each time a message is sent. If the number of timeouts is the same as  
the number of messages sent then you know that the McQuay device has never sent a response.  
The following reasons may be applicable:  
Incorrect connection settings - the messages sent by the FieldServer cannot be interpreted by the  
McQuay device.  
Incorrect connection wiring – the McQuay device may require a jumper on its serial port to deflect  
hardware handshaking. Refer to the vendor manual.  
Serial port failure – If the Tx LED is not flashing each time a message is sent, the port is not  
working  
The McQuay device is off.  
If the Node_ID and Route are incorrect, the McQuay device will not respond at all.  
Appendix C.2.  
Negative Acknowledgement - NAK  
The Server sends a NAK message and increments the NAK stat each time a poll is unsuccessful. An  
occasional NAK may indicate a corrupted message. If the number of NAK's is the same as the  
number of transmitted messages to a Node, however, one of the following problems could apply:  
Bad Password - the password specified in the "read" command did not match any of the access  
level passwords stored in the MicroTech controller to which the terminal is connected. Call FST  
Tech support for default passwords or call your Vendor. FST recommends checking the  
password first as in almost all reports the problem was resolved by changing the password.  
Device has been polled with an invalid command code.  
Bad Node_ID / Route parameters for the node.  
The MCQ device received the message and thought it was badly formatted. This is unlikely on a  
repeated basis unless the connection settings were slightly wrong.  
The packet structure was invalid  
The packet was received with a parity or framing error  
Appendix C.3.  
Node ID problems  
If the Node is incorrectly specified, the FieldServer will not get a response from the McQuay unit. The  
ID used to communicate with the McQuay unit needs to be determined. This may not be the same as  
shown on the Rotary switches of the unit. Note that McQuay uses Hexadecimal notation for  
addressing, therefore, if connection to the Unit is with address 0201, this is in Hex and the Node ID  
for the FieldServer configuration needs to be 513.  
Appendix C.4.  
Server Side Configuration – Consecutive Addresses  
Some variables have their values stored in two consecutive address locations. When the Client polls  
for the value it actually sends two read messages – one for each address. When configuring the  
Server side, therefore, it is necessary to define two Map Descriptors for variables which require two  
consecutive addresses.  
Map_Descriptors  
Map_Descriptor_Name ,Data_Array_Name ,Data_Array_Offset ,Function ,Node_Name ,Address ,Length  
Supply Fan Status  
Supply Temp  
Space Temp  
,DA_AI_01  
,DA_AI_01  
,DA_AI_01  
,DA_AI_01  
,01  
,02  
,03  
,04  
,Passive  
,Passive  
,Passive  
,Passive  
,Node_A  
,Node_A  
,Node_A  
,Node_A  
,1118  
,1063  
,1066  
,1074  
,1  
,1  
,1  
,1  
Control Temp Part 1  
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com  
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: [email protected]  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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