Schneider Electric Marine Instruments EM3555 User Guide
EM3555  
Bi-Directional Compact Power and Energy Meter  
Installation Guide  
ZL0093-0A  
11/2011  
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EM3555  
Contents  
ZL0093-0A  
11/2011  
CONTENTS  
Safety Precautions.............................................................................................. 1  
Installation Overview........................................................................................... 1  
Specifications...................................................................................................... 2  
Introduction......................................................................................................... 4  
Parts of the EM Series........................................................................................ 4  
Dimensions......................................................................................................... 5  
Data Output ........................................................................................................ 6  
Installation........................................................................................................... 7  
Supported System Types.................................................................................... 8  
Wiring.................................................................................................................. 9  
Wiring Diagrams ............................................................................................... 10  
Control Power....................................................................................................11  
Fuse Recommendations....................................................................................11  
Wiring Notes ......................................................................................................11  
Display Screen Diagram................................................................................... 12  
Quick Setup Instructions................................................................................... 13  
Solid State Pulse Output................................................................................... 14  
User Interface Menu Abbreviations Defined ..................................................... 15  
User Interface for Data Configuration............................................................... 16  
Alert/Reset Information..................................................................................... 18  
User Interface for Setup.................................................................................... 19  
RS-485 Communications.................................................................................. 21  
Data Logging .................................................................................................... 22  
Standard Modbus Default Settings................................................................... 23  
Modbus Point Map............................................................................................ 24  
Troubleshooting................................................................................................ 41  
China RoHS Compliance Information............................................................... 41  
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EM3555  
Contents  
ZL0093-0A  
11/2011  
© 2011 Schneider Electric All Rights Reserved.  
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ii  
EM3555  
Safety Precautions  
ZL0093-0A  
11/2011  
SAFETY PRECAUTIONS  
DANGER  
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH  
•
•
•
•
•
Follow safe electrical work practices. See NFPA 70E in the USA or  
applicable local codes.  
This equipment must only be installed and serviced by qualified  
electrical personnel.  
Read, understand, and follow the instructions before installing this  
product.  
Turn off all power supplying equipment before working on or inside  
the equipment.  
Always use a properly rated voltage sensing device to confirm power is  
off.  
•
•
•
DO NOT DEPEND ON THIS PRODUCT FOR VOLTAGE INDICATION.  
Only install this product on insulated conductors.  
Install device in an appropriate electrical and fire enclosure per local  
regulations.  
•
•
•
ESD sensitive equipment. Ground yourself and discharge any static  
charge before handling this device.  
Any covers that may be displaced during the installation must be  
reinstalled before powering the unit.  
Do not install on the load side of a Variable Frequency Drive (VFD), aka  
Variable Speed Drive (VSD) or Adjustable Frequency Drive (AFD).  
Failure to follow these instructions will result in death or serious injury.  
INSTALLATION OVERVIEW  
A. DIN Rail Mounting  
NOTE: Observe correct CT orientation.  
The meter can be mounted in two ways: on standard 35 mm DIN rail or  
screw-mounted to the interior surface of the enclosure.  
1. Disconnect and lock out power. Use a properly rated voltage sensing device  
to confirm power is off.  
2. Attach mounting clips to the underside of the housing by sliding them into  
the slots from the inside. The stopping pegs must face the housing, and the  
outside edge of the clip must be flush with the outside edge of the housing.  
3. Snap the clips onto the DIN rail.  
4. To prevent horizontal shifting across the DIN rail, use two end stop clips.  
B. Screw Mounting  
1. Disconnect and lock out power. Use a properly rated voltage sensing device  
to confirm power is off.  
2. Attach the mounting clips to the underside of the housing by sliding them  
into the slots from the outside. The stopping pegs must face the housing,  
and the screw hole must be exposed on the outside of the housing.  
3. Use three #8 screws (not supplied) to mount the meter to the inside of the  
enclosure.  
NOTE: For detailed instructions, please see the “Installation” section  
later in this guide.  
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EM3555  
Specifications  
ZL0093-0A  
11/2011  
SPECIFICATIONS  
Table 1  
Specifications  
Type  
Description  
Measurement Accuracy  
Real Power and Energy  
Reactive Power and Energy  
Current  
IEC 62053-22 Class 0.5S, ANSI C12.20 0.5%  
IEC 62053-23 Class 2, 2%  
0.4% (+0.015% per °C deviation from 25°C) from 5% to  
100% of range;  
0.8% (+0.015% per °C deviation from 25°C) from 1% to 5%  
of range  
Voltage  
0.4% (+0.015% per °C deviation from 25°C) from 90 V L-N to  
600 VAC L-L  
Sample Rate  
2520 samples per second, no blind time  
1 sec  
Data Update Rate  
Type of Measurement  
True RMS; One to three phase AC system  
Input Voltage Characteristics  
Measured AC Voltage  
Minimum 90 VL-N (156 VL-L ) for stated accuracy;  
UL Maximums: 600 VL-L (347 VL-N );  
CE Maximums: 300 V L-N (520 V L-L  
)
Metering Over-Range  
Impedance  
+20%  
2.5 MΩL-N /5 MΩL-L  
45 to 65 Hz  
Frequency Range  
Input Current Characteristics  
CT Scaling  
Primary: Adjustable from 5 A to 32,000 A  
Measurement Input Range  
Impedance  
0 to 0.333 VAC or 0 to 1.0 VAC (+20% over-range)  
10.6 kΩ (1/3 V mode) or 32.1 kΩ (1 V mode)  
Control Power  
AC  
5 VA max.; 90 V min.;  
UL Maximums: 600 VL-L (347 VL-N );  
CE Maximums: 300 V L-N (520 V L-L  
)
DC*  
3 W max.; UL and CE: 125 to 300 VDC  
100 msec at 120 VAC  
Ride Through Time  
Output  
Alarm Contacts  
N.C., static output; (30 VAC/DC, 100 mA max. @ 25°C,  
derate 0.56 mA per °C above 25°C)  
Real Energy Pulse Contacts  
N.O., static output; (30 VAC/DC, 100 mA max. @ 25°C,  
derate 0.56 mA per °C above 25°C)  
RS-485 Port  
2-wire, 1200 to 38400 baud, Modbus RTU  
Mechanical Characteristics  
Weight  
0.62 lb (0.28 kg)  
IP Degree of Protection (IEC  
60529)  
IP40 front display; IP20 Meter  
Display Characteristics  
Terminal Block Screw Torque  
Terminal Block Wire Size  
Rail  
Back-lit blue LCD  
3.5 in·lb (0.4 N·m) nominal/4.4 in·lb (0.5 N·m) max.  
14 to 24 AWG  
T35 (35mm) DIN Rail per EN50022  
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EM3555  
Specifications  
ZL0093-0A  
11/2011  
Type  
Description  
Environmental Conditions  
Operating Temperature  
Storage Temperature  
-30° to 70°C (-22° to 158°F)  
-40° to 85°C (-40° to 185°F)  
<95% RH (non-condensing)  
3 km max.  
Humidity Range  
Altitude of Operation  
Metering Category  
US and Canada  
CAT III; for distribution systems up to 347 V L-N /600 VAC L-L  
CE  
CAT III; for distribution systems up to 300 VL-N /480 VAC L-L  
Per UL 508, EN61010  
Dielectric Withstand  
Conducted and Radiated  
Emissions  
FCC part 15 Class B, EN55011/EN61000 Class B;  
(residential and light industrial)  
Conducted and Radiated  
Immunity  
EN61000 Class A (heavy industrial)  
Safety  
US and Canada (cULus)  
Europe (CE)  
UL508 (open type device)/CSA 22.2 No. 14-05  
EN61010-1:2001  
* External DC current limiting is required, see fuse recommendations.  
For use in a Pollution Degree 2 or better environment only. A Pollution  
Degree 2 environment must control conductive pollution and the possibility of  
condensation or high humidity. Consideration must be given to the enclosure,  
the correct use of ventilation, thermal properties of the equipment and the  
relationship with the environment.  
Always use this product in the manner specified or the protection provided by  
the product may be impaired.  
Provide a disconnect device to disconnect the meter from the supply source.  
Place this device in close proximity to the equipment and within easy reach  
of the operator, and mark it as the disconnecting device. The disconnecting  
device shall meet the relevant requirements of IEC 60947-1 and IEC 60947-3  
and shall be suitable for the application. In the US and Canada, disconnecting  
fuse holders can be used. Provide overcurrent protection and disconecting  
device for supply conductors with approved current limiting devices suitable for  
protecting the wiring. If the equipment is used in a manner not specified by the  
manufacturer, the protection provided by the device may be impaired.  
FCC PART 15 INFORMATION  
NOTE: This equipment has been tested by the manufacturer and found  
to comply with the limits for a class B digital device, pursuant to part 15 of  
the FCC Rules. These limits are designed to provide reasonable protection  
against harmful interference when the equipment is operated in a residential  
environment. This equipment generates, uses, and can radiate radio frequency  
energy and, if not installed and used in accordance with the instruction  
manual, may cause harmful interference to radio communications. Operation  
of this equipment in a residential area may cause harmful interference in  
which case the user will be required to correct the interference at his own  
expense. Modifications to this product without the express authorization of the  
manufacturer nullify this statement.  
N998  
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EM3555  
Introduction  
ZL0093-0A  
11/2011  
INTRODUCTION  
The EM3555 DIN Rail Power Meter provides a solution for measuring energy  
data with a single device. Inputs include Control Power, CTs, and 3-phase  
voltage. The EM3555 supports multiple output options, including solid state  
relay contacts, Modbus, data logging, and pulse. The LCD screen on the  
faceplate allows instant output viewing.  
The EM3555 Meter is capable of bidirectional metering. Power is monitored  
in both directions (upstream and downstream from the meter). The meter is  
housed in a plastic enclosure suitable for installation on T35 DIN rail according  
to EN50022. The EM3555 can be mounted either on a DIN rail or in a panel.  
Observe correct CT orientation when installing the device.  
Parts of the EM Series  
Figure 1 shows the parts of the EM Series Compact Power and Energy Meter.  
Figure 1 EM Series Meter  
A
B
C
Alarm  
NC  
Energy  
NO  
OUTPUT  
+
-
S
Common - 1 or 1/3 VAC Input  
EM35XX  
Two 5-character rows  
of display text.  
kWh  
1234.5  
Top row alphanumeric;  
Bottom row numeric  
only  
The red Alarm LED  
lights when any of the 3  
phase voltages drop  
below the selected  
threshold. The green  
Energy LED lights  
momentarily each time  
the Energy output pulse  
is active.  
VOLTAGE INPUTS  
CAT III 50/60 Hz  
CONTROL POWER  
0.1A 50/60 Hz  
UL: 90V L-N - 600V L-L CE: 90V L-N - 300V L-N  
A
B
C
N
1
2
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4
EM3555  
Dimensions  
ZL0093-0A  
11/2011  
DIMENSIONS  
Figure 2  
EM Series Dimensions  
Meter Housing  
1.8”  
(45 mm)  
1.9”  
(48 mm)  
2.3”  
(59 mm)  
1.5”  
(39 mm)  
3.6”  
(91 mm)  
4.2”  
(107 mm)  
Bottom View (DIN Mount Option)  
4.2 “  
(107 mm)  
3.6 “  
(91 mm)  
0.2 “  
(4 mm)  
Bottom View (Screw Mount Option)  
2.4 “  
(61 mm)  
1.2 “  
(31 mm)  
0.3 “  
(8 mm)  
+
+
3.9“  
(99 mm)  
4.3 “  
(109 mm)  
0.4 “  
(10 mm)  
+
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EM3555  
Data Output  
ZL0093-0A  
11/2011  
DATA OUTPUT  
Table 2  
Data Output  
Full Data Set (FDS):  
Signed Power: real, reactive, and apparent 3-phase total and per phase  
Real and Apparent Energy Accumulators: import, export, and net; 3-phase total and per phase  
Reactive Energy Accumulators by Quadrant: 3-phase totals and per phase  
Configurable for CT & PT ratios, system type, and passwords  
Diagnostic alerts  
Current: 3-phase average and per phase  
Volts: 3-phase average and per phase line-line and line-neutral  
Power Factor: 3-phase average and per phase  
Frequency  
Power Demand: most recent and peak (import and export)  
Demand Configuration: fixed, rolling block, and external sync  
Data Logging:  
Real Time Clock: user configurable  
10 user configurable log buffers: each buffer holds 5760 16-bit entries (user configures which 10  
data points are stored in these buffers)  
User configurable logging interval (when configured for a 15 minute interval, each buffer holds 60  
days of data)  
Continuous and Single Shot logging modes: user selectable  
Auto write pause: read logs without disabling the meter’s data logging mode  
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6
EM3555  
Installation  
ZL0093-0A  
11/2011  
INSTALLATION  
NOTE: Observe correct CT orientation.  
The meter can be mounted in two ways: on standard 35 mm DIN rail or  
screw-mounted to the interior surface of the enclosure.  
A. DIN Rail Mounting  
1. Disconnect and lock out power. Use a properly rated voltage sensing device  
to confirm power is off.  
2. Attach mounting clips to the underside of the housing by sliding them into  
the slots from the inside. The stopping pegs must face the housing, and the  
outside edge of the clip must be flush with the outside edge of the housing.  
3. Snap the clips onto the DIN rail. See diagram of the underside of the  
housing (Figure 3).  
Figure 3 Attach mounting clips for DIN Rail  
Clip flush  
with outside  
edge  
Snap onto  
DIN rail  
Insert clips from  
inside  
4. To prevent horizontal shifting across the DIN rail, use two end stop clips.  
B. Screw Mounting  
1. Disconnect and lock out power. Use a properly rated voltage sensing device  
to confirm power is off.  
2. Attach the mounting clips to the underside of the housing by sliding them  
into the slots from the outside. The stopping pegs must face the housing,  
and the screw hole must be exposed on the outside of the housing.  
3. Use three #8 screws (not supplied) to mount the meter to the inside of the  
enclosure. See diagram of the underside of the housing (Figure 4).  
Figure 4 Attach Clips for screw mounting  
Insert clips from  
outside  
Screw  
holes  
exposed  
for  
mounting  
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EM3555  
Supported System Types  
ZL0093-0A  
11/2011  
SUPPORTED SYSTEM TYPES  
The meter has a number of different possible system wiring configurations (see  
Wiring Diagrams). To configure the meter, set the System Type via the User  
Interface or Modbus register 130. The System Type tells the meter which of  
its current and voltage inputs are valid, which are to be ignored, and if neutral  
is connected. Setting the correct System Type prevents unwanted energy  
accumulation on unused inputs, selects the formula to calculate the Theoretical  
Maximum System Power, and determines which phase loss algorithm is to be  
used. The phase loss algorithm is configured as a percent of the Line-to-Line  
System Voltage (except when in System Type 10) and also calculates the  
expected Line to Neutral voltages for system types that have Neutral (12 & 40).  
Values that are not valid in a particular System Type will display as “----” on the  
User Interface or as QNAN in the Modbus registers.  
Table 3  
Supported system types  
Voltage Connections  
CTs  
System Type  
Phase Loss Measurements  
Wiring Diagram  
Number  
of wires  
Qty  
ID  
Qty  
ID  
Type  
Modbus  
Register  
130  
User  
VLL  
VLN  
Balance  
Diagram number  
Interface:  
SETUP>  
S SYS  
Single-Phase Wiring  
2
2
3
1
1
2
A
2
2
3
A, N  
L-N  
10  
11  
12  
1L + 1n  
2L  
AN  
1
2
3
A
A, B  
L-L  
AB  
AB  
A, B  
A, B, N  
L-L with N  
2L + 1n  
AN, BN  
AN-BN  
Three-Phase Wiring  
3
3
A, B,  
C
3
4
A, B, C  
Delta  
31  
40  
3L  
AB, BC,  
CA  
AB-BC-CA  
4
4
3
A, B,  
C
A, B,  
C, N  
Grounded Wye  
3L + 1n  
AB, BC,  
CA  
AN, BN,  
CN  
AN-BN-CN &  
AB-BC-CA  
5, 6  
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EM3555  
Wiring  
ZL0093-0A  
11/2011  
WIRING  
DANGER  
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH  
•
Apply appropriate personal protective equipment (PPE) and follow safe  
electrical work practices. See NFPA 70E in the USA or applicable local  
codes.  
•
•
•
•
This equipment must only be installed and serviced by qualified electrical  
personnel.  
Turn off all power supplying equipment before working on or inside the  
equipment.  
Always use a properly rated voltage sensing device to confirm power is  
off.  
Read, understand, and follow the instructions before installing this  
product.  
Failure to follow these instructions will result in death or serious injury.  
To avoid distortion, use parallel wires for control power and voltage inputs.  
The following symbols are used in the wiring diagrams on the following pages.  
Table 5  
Wiring Symbols  
Symbol  
Description  
Voltage Disconnect Switch  
Fuse (installer is responsible for ensuring compliance  
with local requirements. No fuses are included with  
the meter.)  
Earth ground  
Current Transducer  
S1  
S2  
Potential Transformer  
Protection device containing a voltage disconnect  
switch with a fuse or disconnect circuit breaker. The  
protection device must be rated for the available  
short-circuit current at the connection point.  
CAUTION  
RISK OF EQUIPMENT DAMAGE  
•
•
This product is designed only for use with 1V or 0.33V current  
transducers (CTs).  
DO NOT USE CURRENT OUTPUT (e.g. 5A) CTs ON THIS  
PRODUCT.  
Failure to follow these instructions can result in overheating and  
permanent equipment damage.  
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EM3555  
Wiring Diagrams  
ZL0093-0A  
11/2011  
WIRING DIAGRAMS  
WARNING  
RISK OF ELECTRIC SHOCK  
CT negative terminals are referenced to the meter’s neutral and may be at elevated voltages  
· Do not contact meter terminals while the unit is connected  
· Do not connect or short other circuits to the CT terminals  
Failure to follow these instructions can result in death or serious injury.  
Diagram 1: 1-Phase Line-to-Neutral 2- Wire System 1 CT  
Diagram 2: 1-Phase Line-to-Line 2-Wire System 1 CT  
Use System Type 10 (1L + 1n)  
Use System Type 11 (2L)  
L1 L2  
N L1  
A
B
C
A
B
C
N
N
X1  
X2  
White  
Black  
X1  
X2  
White  
Black  
+
-
+
-
A
A
+
B
+
-
B
-
+
C
+
-
C
-
Diagram 3: 1-Phase Direct Voltage Connection 2 CT  
Use System Type 12 (2L + 1n)  
Diagram 4: 3-Phase 3-Wire 3 CT no PT  
Use System Type 31 (3L)  
N
L1 L2  
L1 L2 L3  
A
B
C
A
B
C
N
N
X1  
X2  
X1  
X2  
White  
Black  
White  
Black  
+
-
+
A
A
B
C
-
+
-
+
-
X1  
X2  
White  
Black  
+
X1  
X2  
White  
Black  
B
-
X1  
X2  
White  
Black  
+
C
-
Diagram 5: 3-Phase 4-Wire Wye Direct Voltage Input Connection  
3 CT  
Diagram 6: 3-Phase 4-Wire Wye Connection 3 CT 3 PT  
Use System Type 40 (3L + 1n)  
Use System Type 40 (3L + 1n)  
N
L1 L2 L3  
N
L1 L2 L3  
A
B
C
A
B
C
N
N
X1  
X2  
White  
Black  
+
X1  
White  
Black  
A
B
C
+
-
+
-
+
-
A
B
C
X1  
X2  
White  
Black  
-
+
-
+
-
X2 X1  
X2  
White  
Black  
X1  
X2  
White  
Black  
X1  
X2  
White  
Black  
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EM3555  
Control Power  
ZL0093-0A  
11/2011  
CONTROL POWER  
Direct Connect Control Power (Line to Line)  
Direct Connect Control Power (Line to Neutral)  
G 1 2  
G 1 2  
N L1 L2 L3  
L1 L2 L3  
Line to Line from 90VAC to 600 VAC (UL) (520 VAC for CE). In UL installations the  
lines may be floating (such as a delta). If any lines are tied to an earth (such as a corner  
grounded delta), see the Line to Neutral installation limits. In CE compliant installations,  
the lines must be neutral (earth) referenced at less than 300 VACL-N  
Line to Neutral from 90 VAC to 347 VAC (UL) or 300 VAC (CE)  
Direct Connect Control Power (DC Control Power)  
Control Power Transformer (CPT) Connection  
G 1 2  
G 1 2  
N L1 L2 L3  
DC Control Power from 125 VDC to 300 VDC (UL and CE max.)  
The Control Power Transformer may be wired L-N or L-L. Output to meet meter input requirements  
FUSE RECOMMENDATIONS  
Keep the fuses close to the power source (obey local and national code  
requirements).  
For selecting fuses and circuit breakers, use the following criteria:  
•
Select current interrupt capacity based on the installation category  
and fault current capability.  
•
•
•
Select over-current protection with a time delay.  
The voltage rating should be sufficient for the input voltage applied.  
Provide overcurrent protection and disconnecting means to protect  
the wiring. For DC installations, external circuit protection must be  
provided. Suggested: 0.5 A, time delay fuses.  
•
The earth connection is required for electromagnetic compatibility  
(EMC) and is not a protective earth ground.  
WIRING NOTES  
•
•
Use 14-24 gauge wire for all connections.  
When tightening terminals, ensure that the correct torque is applied:  
3.5 - 4.4 in·lb (0.4-0.5 N·m).  
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EM3555  
Display Screen Diagram  
ZL0093-0A  
11/2011  
DISPLAY SCREEN DIAGRAM  
Figure 5 Display Screen  
LCD Screen:  
Screen Name or Units  
Alive Indicator  
Diagnostic  
Alert  
n
Export  
Import  
  
  
Tx  
Rx  
ERR  
Transmit Data  
Receive Data  
Receive Data Error  
Numeric  
Data  
Buttons:  
(Up)  
Select  
(Left)  
Back  
(Right)  
Next  
(Down)  
Select  
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EM3555  
Quick Setup Instructions  
ZL0093-0A  
11/2011  
QUICK SETUP INSTRUCTIONS  
These instructions assume the meter is set to factory defaults. If it has been  
previously configured, all optional values should be checked.  
–
+
1. Press the  
2. Press  
or  
button repeatedly until SETUPscreen appears.  
to the PASWDscreen.  
–
+
3. Press  
through the digits. Press  
or  
to select the password (the default  
is 00000). Exit the screen to the right.  
–
+
4. Press  
or  
to select the parameter to configure.  
5. The first Setup screen is S COM(set RS-485 communications).  
+
a. Press  
to the ADDR screen and through the address digits. Press  
–
or  
to select the Modbus address.  
–
+
b. Press  
c. Press  
d. Press  
to the BAUDscreen. Press  
or  
to select the baud rate.  
–
+
to the PARscreen. Press  
or  
to select the parity.  
back to the S COMscreen.  
–
6. Press  
to the S CT(Set Current Transducer) screen.  
–
+
a. Press  
to the CT Vscreen. Press  
or  
to select the voltage mode  
Current Transducer output voltage (default is 0.33).  
–
+
b. Press to the CT SZscreen and through the digits. Press  
or  
to  
select the CT size in amps.  
c. Press  
back to the S CTscreen.  
–
7. Press  
to the S SYS(Set System) screen.  
–
+
a. Press  
to the SYSTM screen. Press  
or  
to select the System Type  
(see wiring diagrams).  
b. Press  
back to the S SYSscreen.  
–
8. (Optional) Press  
to the S PT(Set Potential Transformer) screen. If PTs  
are not used, then skip this step.  
–
+
a.  
to the RATIO screen and through the digits. Use the  
or  
buttons  
to select the Potential Transformer step down ratio.  
b.  
back to the S PTscreen.  
–
9.  
to the S V(Set System Voltage) screen.  
a.  
to the VLL (or VLN if system is 1L-1n) screen and through the digits.  
–
+
Use the  
back to the S V screen.  
to exit the setup screen and then SETUP.  
11. Check that the wrench is not displayed on the LCD.  
or  
buttons to select the Line to Line System Voltage.  
b.  
10. Use the  
–
+
a. If the wrench is displayed, press  
or  
to find the ALERT screen.  
b. Press through the screens to see which alert is on.  
For full setup instructions, see the configuration instructions on the following  
pages.  
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EM3555  
Solid-state Pulse Output  
ZL0093-0A  
11/2011  
SOLID-STATE PULSE OUTPUT  
The meter has one normally open (N.O.) KY Form A output and one normally  
closed (N.C.) solid-state output.* One is dedicated to import energy (Wh), and  
the other to Alarm. See the Setup section for configuration information.  
Figure 6 Solid State Pulse Outputs  
Over-Current Protective  
Device** (not supplied)  
≤ 100 mA  
Power Source  
3-30 VDC  
6-30 VAC  
~
=
≤ 100 mA  
Power Source  
3-30 VDC  
6-30 VAC  
~
=
+
–
S
Energy  
Output  
Alarm  
The solid state pulse outputs are rated for 30 VAC/DC nom.  
Maximum load current is 100 mA at 25°C. Derate 0.56 mA per °C above 25°C.  
* While the relay used for the Phase Loss contact is Normally Closed (contacts  
are closed when the meter is not powered), closure indicates the presence of an  
alarm; either loss of phase, when the meter is powered, or loss of power when  
the meter is not. The contacts are open when the meter is powered and no  
phase loss alarm conditions are present.  
** The over-current protective device must be rated for the short circuit current  
at the connection point.  
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14  
EM3555  
UI Menu Abbreviations Defined  
ZL0093-0A  
11/2011  
UI MENU ABBREVIATIONS DEFINED  
The user can set the display mode to IEC or IEEE notation in the SETUP  
menu.  
Table 6  
IEC and IEEE Abbreviations  
Main Menu  
IEC  
D
IEEE  
D
Description  
Demand  
MAX  
P
M
Maximum Demand  
Present Real Power  
Present Reactive Power  
Present Apparent Power  
Amps  
W
Q
VAR  
VA  
A
S
A
UAB, UBC,  
UAC  
VAB, VBC,  
VAC  
Voltage Line-to-Line  
V
VLN  
Voltage Line-to-Neutral  
Power Factor  
PF  
PF  
U
VLL  
Voltage Line-to-Line  
Frequency  
HZ  
HZ  
KSh  
KVAh  
KVARh  
KWh  
Accumulated Apparent Energy  
Accumulated Reactive Energy  
Accumulated Real Energy  
Phase Loss  
KQh  
KPh  
PLOSS  
LOWPF  
F ERR  
I OVR  
V OVR  
PULSE  
_PHASE  
ALERT  
INFO  
MODEL  
OS  
PLOSS  
LOWPF  
F ERR  
I OVR  
V OVR  
PULSE  
_PHASE  
ALERT  
INFO  
Low Power Factor Error  
Frequency Error  
Over Current  
Over Voltage  
kWh Pulse Output Overrun (configuration error)  
Summary Data for 1, 2, or 3 active phases  
Diagnostic Alert Status  
Unit Information  
MODEL  
OS  
Model Number  
Operating System  
RS  
RS  
Reset System  
SN  
SN  
Serial Number  
RESET  
PASWD  
ENERG  
DEMND  
RESET  
PASWD  
ENERG  
DEMND  
Reset Data  
Enter Reset or Setup Password  
Reset Energy Accumulators  
Reset Demand Maximums  
Import  
Export  
PULS_  
PULS_  
Pulse Counter (if equipped)  
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EM3555  
ZL0093-0A  
11/2011  
User Interface for Data Configuration  
USER INTERFACE FOR DATA CONFIGURATION  
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16  
EM3555  
ZL0093-0A  
11/2011  
User Interface for Data Configuration  
© 2011 Schneider Electric All Rights Reserved.  
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EM3555  
Alert/Reset Information  
ZL0093-0A  
11/2011  
ALERT/RESET INFORMATION  
To: ENRGY  
Alert Status  
(check if  
Wrench on  
LCD)  
PLOSS  
--------  
A b C  
LOWPF  
--------  
A b C  
F ERR  
--------  
A
I OVR  
--------  
A b C  
V OVR  
--------  
A b C  
PULSE  
--------  
Error  
ALERT  
Frequency Out  
of Range  
A
Energy Pulse Output:  
Error = Overrun Error  
ConF = Configuration Error  
Over Current  
(Clipping)  
A B C  
Over Voltage  
(Clipping)  
A B C  
ALERT  
Phase Loss  
A B C  
Low Power Factor  
A B C  
Display “nOnE” if no alerts  
Unit  
Information  
MODEL  
OS  
Operating  
System  
RS  
Reset  
SN  
Serial  
INFO  
Model  
Number  
System  
Number  
INFO  
PASWD – Enter the Reset Password  
(configured in the setup menu).  
ENERG – Reset all Energy  
Back  
PASWD  
--------  
00000  
ENERG  
--------  
rES  
DEMND  
--------  
rES  
COUNT  
--------  
rES  
Accumulators (Wh, VARh, VAh) to 0.  
Press “+” or “-“ to Reset.  
DEMND – Reset all Maximum  
Reset  
Data  
RESET  
RESET Demand (W, VAR, VA) to the present  
Demand. Hit “+” or “-“ to Reset.  
Enter Reset  
Password  
Reset Energy  
Accumulators to 0  
Reset Demand  
Maximums to Present  
Reset Pulse  
Counters to 0  
COUNT – Reset the pulse counters.  
Press “+” or “-“ to Reset.  
PASWD  
--------  
Setup  
Meter  
SETUP  
To Setup  
00000  
Enter Setup  
Password  
To: DEMND  
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18  
EM3555  
User Interface for Setup  
ZL0093-0A  
11/2011  
USER INTERFACE FOR SETUP  
To Setup p. 2 “SPASS”  
RS-485  
Output  
BAUD  
--------  
38400  
19200  
9600  
Set Communications Parameters:  
PAR  
--------  
nOnE  
EvEn  
Odd  
ADDR - Modbus Address: 1 – 247.  
Press + to increment the selected (blinking) digit.  
Press - to select the digit to the left.  
BAUD - Baud Rate: 1200 – 38400 Baud  
PAR - Parity: Odd, Even, None  
ADDR  
--------  
001  
Back  
S COM  
4800  
2400  
1200  
Press + or - to step through the options.  
From:  
SETUP > PASWD  
Next  
CT V  
--------  
1.0  
CT SZ  
--------  
100  
Set Current Transducer:  
CT V - CT Input Voltage: + or – to Select 1.0 or 0.33V.  
CT SZ - CT Size: in Amps. Maximum is 32000 Amps.  
Back  
Current  
Transformer  
S CT  
.33  
Next  
Set System Configuration:  
SYSTM: + or – to step through the following System Type options:  
System Reg 130 CTs Description  
SYSTM  
--------  
3L-1n  
3L  
2L-1n  
2L  
3L-1n  
3L  
2L-1n  
2L  
40  
31  
12  
11  
10  
3
3
2
1
1
Wye Three Phase: A, B, & C with Neutral (Default).  
Delta Three Phase: A, B & C; no Neutral  
Single Split Phase: A & B with Neutral  
Single Phase: A & B; no Neutral  
Back  
S SYS  
System  
Type  
1L-1n  
1L-1n  
Single Phase: A to Neutral  
Next  
Set Potential Transfomer Ratio:  
RATIO  
--------  
001.00  
RATIO – Potential transformer step down is RATIO:1. Default is 1:1  
(No PT installed). See Install for wiring diagrams. This value must be  
set before the System Voltage (if used).  
Back  
S PT  
Potential  
Transformer  
Next  
Set System Voltage:  
V LL – The nominal Line to Line Voltage for the system. This is used  
by the meter to calculate the theoretical maximum system power, and  
as the reference voltage for setting the Phase Loss threshold.  
Maximum is 32000 Volts. For system type 1+N (10), this is a Line to  
Neutral Voltage, indicated by “V LN”. Note: the meter will reject settings  
that are not within the meter’s operating range when divided by the PT  
ratio.  
V LL  
--------  
00600  
Back  
Sytem  
S
V
Voltage  
Next  
System Power:  
MX KW – The theoretical Maximum System Power is calculated by the  
meter from the System Voltage, CT size, and System Type. Power  
Factor is assumed to be unity. The value of System Power is used to  
determine which combinations of pulse weight and duration are valid  
and will keep up with the maximum power the meter will see. This value  
is read only.  
MX KW  
--------  
103.92  
Back  
Sytem  
S PWR  
Next  
Voltage  
To Setup p. 2 “SPLOS”  
Note: Bold is the Default.  
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EM3555  
User Interface for Setup  
ZL0093-0A  
11/2011  
To Setup p. 1 “S PWR”  
Set Phase Loss:  
VOLTS - Phase Loss Voltage: The fraction of the system  
voltage below which Phase Loss Alarm is on. For system  
types with neutral, the Line to Neutral voltage is also  
calculated and tested. If the System Voltage is 600 and the  
fraction is set to 0.10, then the Phase Loss threshold will be  
60 volts.  
IMBAL - Phase Loss Imbalance: The fractional difference  
in Line to Line voltages above which Phase Loss Alarm is  
on. For system types with neutral, the Line to Neutral  
voltages are also tested. For system types 1+N (10) and 2  
(11) , imbalance is not tested.  
VOLTS  
--------  
0.10  
IMBAL  
--------  
0.25  
Back  
SPLOS  
Phase  
Loss  
Next  
Set Pulse:  
The System Type , CT size, PT Ratio, and System Voltage must  
all be configured before setting the Pulse Energy. If any of these  
parameters are changed, the meter will hunt for a new Pulse  
Duration, but will not change the Pulse Energy. If it cannot find a  
solution, the meter will display the wrench, show “ConF” in the  
ALARM -> PULSE screen, and enable Energy pulse output  
configuration error bit in the Modbus Diagnostic Alert Bitmap (if  
equipped).  
Wh/P - Set Pulse Energy: In Watt Hours (& VAR Hours, if  
present) per Pulse. When moving down to a smaller energy, the  
meter will not allow the selection if it cannot find a pulse duration  
that will allow the pulse output to keep up with Theoretical  
Maximum System Power (see S_PWR screen). When moving  
up to a larger energy, the meter will jump to the first value where  
it can find a valid solution.  
Max  
mS/P  
--------  
500  
250  
100  
50  
PPS  
--------  
1
2
5
10  
20  
50  
Wh/P  
--------  
10000  
1000  
100  
Back  
SPULS  
Pulse  
Output  
10  
25  
10  
Next  
mS/P – Minimum Pulse Duration Time: This read only value  
is set by the meter to the slowest duration (in mS per closure)  
that will keep up with the Theoretical Maximum System Power.  
The open time is greater than or equal to the closure time. The  
maximum Pulses Per Second (PPS) is shown in yellow.  
INTRV  
--------  
Set Demand Interval:  
INTRV - The number of Sub-Intervals (1 to 6) in a Demand Interval.  
Default is 1 (block demand).  
SEC - Sub-Interval length in seconds. Default is 900 (15 minutes).  
Set to 0 for external sync-to-comms (Modbus units only).  
6
5
4
3
2
1
SEC  
--------  
00900  
Back  
SDMND  
Demand  
Next  
UNITS  
--------  
IEEE  
IEC  
Set Display Units: +/- to switch between:  
IEEE – VLL VLN W VAR VA Units.  
Back  
S DIS  
IEC  
-
U
V
P
Q
S
Units.  
Display  
Units  
Next  
SETUP  
--------  
00000  
RESET  
--------  
00000  
Set Passwords:  
SETUP - The Password to enter the SETUP menu.  
RESET - The Password to enter the RESET menu.  
Back  
Setup  
SPASS  
Passwords  
Next  
To Setup page 1 “S COM”  
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20  
EM3555  
RS-485 Communications  
ZL0093-0A  
11/2011  
RS-485 COMMUNICATIONS  
Daisy-chaining Devices to the Power Meter  
The RS-485 slave port allows the power meter to be connected in a daisy chain  
with up to 63 2-wire devices. In this bulletin, communications link refers to a  
chain of devices that are connected by a communications cable.  
Figure 7 Daisy-chaining multiple devices  
120 Ω terminator  
Belden 1120 A or equivalent (600 V)  
on the first and  
last device of the  
daisy chain  
+
–
S
Shield wire  
•
The terminal’s voltage and current ratings are compliant with the  
requirements of the EIA RS-485 communications standard.  
The RS-485 transceivers are ¼ unit load or less.  
RS-485+ has a 47 kΩ pull up to +5V, and RS-485- has a 47 kΩ pull  
down to Shield (RS-485 signal ground).  
•
•
•
Wire the RS-485 bus as a daisy chain from device to device, without  
any stubs. Use 120 Ω termination resistors at each end of the bus (not  
included).  
•
•
•
•
Shield is not internally connected to Earth Ground.  
Connect Shield to Earth Ground somewhere on the RS-485 bus.  
Use 14-24 gauge wire for all connections.  
When tightening terminals, ensure that the correct torque is applied:  
3.5 - 4.4 in·lb (0.4-0.5 N·m).  
Figure 8 Torque requirements  
Use 14-24 gauge wire  
3.5–4.4 in•lb  
(0.4–0.5 N•m)  
+
Red  
Black  
Gray  
–
S
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EM3555  
Data Logging  
ZL0093-0A  
11/2011  
DATA LOGGING  
Configuration  
The EM3555 includes a data logging feature that records 10 meter parameters,  
each in its own buffer.  
Use register 150 to set the data logging time subinterval. Writing to the storage  
buffer is triggered by the subinterval timer. The default subinterval is 15 minutes  
(at a 15 minute interval setting, the buffers hold 60 days of data). An external  
timer can be used over Modbus by setting this register to 0.  
Use register 159 to turn on data logging and select either Single Shot or  
Continuous mode. The default settings are data logging on and set to  
Continuous mode. In Single Shot mode, the meter records data until the buffer  
is full. When the buffer is full, the meter stops recording new readings. Data  
for this time period is kept, but newer energy information is lost. In Continuous  
mode, the meter continues to record energy data as long as the meter is  
operating. The buffer can only hold 5760 entries at one time, however, so when  
the number of records exceeds 5760, the oldest entry is deleted to make room  
for the newest.  
Registers 169-178 contain the pointers to 10 data storage buffers. Each buffer  
is user-configurable with the Modbus address of the 16-bit data output to be  
stored. Measurement variables with 32-bit data, such as floating point data or  
32-bit integer energy accumulators, require two buffers. However, the lower 16  
bits of an integer energy accumulator can be stored in a single buffer (optional).  
When the EM3555 is first installed, the buffers contain QNAN data, with a value  
of 0x8000. This data is considered invalid. If the buffer is reset at any point, all  
entries in the buffers are overwritten with this 0x8000 value, indicating that it is  
invalid. All invalid data is overwritten as the meter fills the buffer with new data  
entries.  
Reading Data  
Use register 158 to choose which buffer to read. When this register value is set  
to 0, the meter is in data logging mode. Changing this value from 0 (to 1 through  
10) switches the meter to reading mode and selects a buffer to read. Data from  
the selected buffer appears in registers 8000 to 13760.  
Read/Write Collision  
If the demand sub-interval timeout occurs while the user is reading a page  
(register 158 ≠ 0), the log data will be held in RAM until the next demand  
subinterval. At that time, both the saved data from the previous cycle and  
the new data will be written to the log, whether the page register has been  
set back to 0 or not. Error bits in the Log Status Register (160) track these  
conditions. Subsequent log writes will proceed normally. Provided the log read  
is concluded in less time than the demand sub-interval, this mechanism handles  
the occasional collision and prevents the user from reading data as the buffer is  
being updated.  
The Log Status Register has additional error flag bits that indicate whether  
logging has been reset or interrupted (power cycle, etc.) during the previous  
demand sub-interval, and whether the Real Time Clock has been changed  
(re-initialized to default date/time due to a power-cycle or modified via Modbus  
commands).  
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22  
EM3555  
ZL0093-0A  
11/2011  
Standard Modbus Default Settings  
STANDARD MODBUS DEFAULT SETTINGS  
Table 7  
Modbus Default Settings  
Setting  
Value  
Modbus  
Register  
Setup Password  
Reset Password  
System Type  
00000  
00000  
–
–
40 (3 + N) Wye  
100 A  
130  
131  
CT Primary Ratio (if CTs  
are not included)  
CT Secondary Ratio  
PT Ratio  
0.33 V  
132  
133  
134  
135  
1:1 (none)  
600 V L-L  
104 kW  
System Voltage  
Max. Theoretical Power  
(Analog Output: full scale  
(20mA or 5V))  
Display Mode  
Phase Loss  
1 (IEEE)  
137  
10% of System Voltage (60V), 25%  
Phase to Phase Imbalance  
142, 143  
Pulse Energy  
1 (kWh/pulse)  
1 (block mode)  
144  
149  
Demand: number of  
sub-intervals per interval  
Demand: sub-interval  
length  
900 sec (15 min)  
150  
Modbus Address  
Modbus Baud Rate  
Modbus Parity  
001  
–
19200 baud  
–
Even  
–
Log Read Page  
0
0
158  
159  
Logging Configuration  
Register  
Log Register Pointer 1  
Log Register Pointer 2  
Log Register Pointer 3  
Log Register Pointer 4  
Log Register Pointer 5  
Log Register Pointer 6  
Log Register Pointer 7  
Log Register Pointer 8  
Log Register Pointer 9  
Log Register Pointer 10  
1 (Real Energy MSR)  
2 (Real Energy LSR)  
29 (Reactive Energy MSR)  
30 (Reactive Energy LSR)  
37 (Real Demand)  
169  
170  
171  
172  
173  
174  
175  
176  
177  
178  
38 (Reactive Demand)  
39 (Apparent Demand)  
155 (Month/Day)  
156 (Year/Hour)  
157 (Minutes/Seconds)  
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23  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
MODBUS POINT MAP  
The EM3555 Full Data Set (FDS) features data outputs such as demand  
calculations, per phase signed watts VA and VAR, import/export Wh and VAh,  
and VARh accumulators by quadrant. The Data Logging function adds log  
configuration registers 155-178 and log buffer reading at registers 8000-13760.  
The meter supports variable CTs and PTs, allowing a much wider range of  
operation from 90V x 5A up to 32000V x 32000A. To promote this, the meter  
permits variable scaling of the 16-bit integer registers via the scale registers.  
The 32-bit floating point registers do not need to be scaled.  
Integer registers begin at 001 (0x001). Floats at 257 (0x101). Configuration  
registers at 129 (0x081). Values not supported in a particular System Type  
configuration will report QNAN (0x8000 in Integer Registers, 0x7FC00000 in  
Floating Point Registers). Register addresses are in PLC style base 1 notation.  
Subtract 1 from all addresses for the base 0 value used on the Modbus RS-485  
link.  
Supported Modbus Commands  
Note: ID String information varies from model to model. Text shown here is an  
example.  
Table 8  
Supported Commands  
Command  
0x03  
Description  
Read Holding Registers  
Read Input Registers  
Preset Single Register  
0x04  
0x06  
0x10  
Preset Multiple Registers  
Report ID  
Return string:  
byte0: address  
byte1: 0x11  
byte2: #bytes following w/out crc  
byte3: ID byte = 247  
0x11  
byte4: status = 0xFF if the operating system is used; status =  
0x00 if the reset system is used  
bytes5+: ID string = “Schneider Electric EM3555 Power Meter  
Full Data Set” or “Schneider Electric EM3555 Power Meter -  
RESET SYSTEM RUNNING RS Version x.xxx” last 2 bytes: CRC  
Read Device Identification, BASIC implementation (0x00, 0x01  
and 0x02 data), Conformity Level 1.  
Object values:  
0x01: “Schneider Electric EM”  
0x02: “3555”  
0x2B  
0x03: “Vxx.yyy”, where xx.yyy is the OS version number  
(reformatted version of the Modbus register #7001, (Firmware  
Version, Operating System).  
If register #7001 == 12345, then the 0x03 data would be  
“V12.345”).  
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24  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Legend  
The following table lists the addresses assigned to each data point. For floating  
point format variables, each data point appears twice because two 16-bit  
addresses are required to hold a 32-bit float value. Negative signed integers are  
2’s complement.  
R=read only  
R/W  
NV  
R/W=read from either integer or float formats, write only to integer  
format.  
Value is stored in non-volatile memory. The value will still be available if  
the meter experiences a power loss and reset.  
UInt  
SInt  
Unsigned 16-bit integer.  
Signed 16-bit integer.  
ULong Unsigned 32-bit integer; Upper 16-bits (MSR) in lowest  
numbered / first listed register (001/002 = MSR/LSR).  
Format  
Units  
SLong Signed 32-bit integer; Upper 16-bits (MSR) in lowest  
numbered / first listed register (001/002 = MSR/LSR).  
Float  
32-bit floating point; Upper 16-bits (MSR) in lowest numbered  
/ first listed register (257/258 = MSR/LSR). Encoding is per  
IEEE standard 754 single precision.  
Lists the physical units that a register holds.  
Some Integer values must be multiplied by a constant scale factor  
(typically a fraction), to be read correctly. This is done to allow integer  
numbers to represent fractional numbers.  
Scale  
Factor  
Range  
Defines the limit of the values that a register can contain.  
SunSpec Alliance Interoperability Specification Compliance  
This meter implements the draft SunSpec 1.0 common elements starting at  
base 1 address 40001, and the proposed SunSpec 1.1 meter model at 40070  
(these addresses are not in Modicon notation). See www.sunspec.org for copies  
of these specifications.  
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25  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Description  
Integer Data: Summary of Active Phases  
-2147483647  
to  
+2147483647  
001  
002  
003  
004  
005  
006  
007  
008  
009  
010  
011  
012  
013  
014  
015  
016  
017  
018  
019  
020  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
R
R
R
R
R
R
R
R
R
R
NV SLong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV SLong  
NV ULong  
NV ULong  
kWh  
E
E
E
E
E
E
E
E
E
E
Real Energy: Net (Import - Export)  
Accumulated Real  
Energy (Ph)  
0 to  
Real Energy: Quadrants 1 & 4  
kWh  
0xFFFFFFFF Import  
0 to  
Real Energy: Quadrants 2 & 3  
kWh  
0xFFFFFFFF Export  
0 to  
Reactive Energy - Quadrant 1:  
kVARh  
kVARh  
kVARh  
kVARh  
kVAh  
kVAh  
kVAh  
0xFFFFFFFF Lags Import Real Energy (IEC) Inductive (IEEE)  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
Accumulated  
Reactive Energy  
(Qh):  
Quadrants 1 + 2 =  
Import  
0 to  
Reactive Energy - Quadrant 2:  
0xFFFFFFFF Leads Export Real Energy (IEC) Inductive (IEEE)  
Clear via reset  
register 129  
0 to  
Reactive Energy - Quadrant 3:  
0xFFFFFFFF Lags Export Real Energy (IEC) Capacitive (IEEE)  
Quadrants 3 + 4 =  
Export  
0 to  
Reactive Energy - Quadrant 4:  
0xFFFFFFFF Leads Import Real Energy (IEC) Capacitive (IEEE)  
-2147483647  
to  
+2147483647  
Apparent Energy: Net (Import - Export)  
Accumulated  
Apparent Energy  
(Sh):  
Import and Export  
correspond with Real  
Energy  
0 to  
Apparent: Quadrants 1 & 4  
0xFFFFFFFF Import  
0 to  
Apparent: Quadrants 2 & 3  
0xFFFFFFFF Export  
-32767 to  
+32767  
021  
022  
023  
024  
025  
026  
027  
028  
029  
030  
031  
R
R
R
R
R
R
R
SInt  
SInt  
UInt  
SInt  
UInt  
UInt  
UInt  
UInt  
SInt  
SInt  
SInt  
kW  
W
Total Instantaneous Real (P) Power  
kVAR  
kVA  
Ratio  
Volt  
W
0 to 32767  
Total Instantaneous Reactive (Q) Power  
Total Instantaneous Apparent (S) Power (vector sum)  
Total Power Factor (total kW / total kVA)  
Voltage, L-L (U), average of active phases  
Voltage, L-N (V), average of active phases  
Current, average of active phases  
W
0 to 32767  
-10000 to  
+10000  
0.0001  
V
0 to 32767  
0 to 32767  
0 to 32767  
Volt  
V
Amp  
Hz  
I
0.01  
W
4500 to 6500 Frequency  
-32767 to  
R
R
kW  
Total Real Power Present Demand  
+32767  
-32767 to  
+32767  
kVAR  
kVA  
W
Total Reactive Power Present Demand  
Total Apparent Power Present Demand  
-32767 to  
+32767  
W
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26  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Description  
-32767 to  
+32767  
032  
033  
034  
035  
036  
037  
R
R
R
R
R
NV SInt  
NV SInt  
NV SInt  
NV SInt  
NV SInt  
kW  
W
W
W
W
W
W
Total Real Power Max. Demand  
Total Reactive Power Max. Demand  
Total Apparent Power Max. Demand  
Total Real Power Max. Demand  
Total Reactive Power Max. Demand  
-32767 to  
+32767  
kVAR  
kVA  
kW  
Import  
-32767 to  
+32767  
Reset via register  
129  
-32767 to  
+32767  
-32767 to  
+32767  
kVAR  
kVA  
Export  
-32767 to  
+32767  
R
R
NV SInt  
UInt  
Total Apparent Power Max. Demand  
Reserved (returns 0x8000 - QNAN)  
038  
039  
040  
041  
042  
043  
044  
045  
046  
047  
048  
049  
050  
051  
052  
MSR  
0 to  
Pulse Counter 1  
Contact Closure Counters. Valid for both pulse  
inputs and outputs. EM3555 counts are shown in  
parentheses. See register 144 - Energy Per Pulse  
for the Wh per pulse count.  
R
R
R
R
R
R
R
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
0xFFFFFFFF (Import Real Energy)  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
0 to  
Pulse Counter 2  
0xFFFFFFFF (Export Real Energy)  
0 to  
Accumulated Real Energy,  
kWh  
kWh  
kWh  
kWh  
kWh  
E
E
E
E
E
0xFFFFFFFF Phase A  
0 to  
Accumulated Real Energy,  
Import  
0xFFFFFFFF Phase B  
0 to  
Accumulated Real Energy,  
0xFFFFFFFF Phase C  
Accumulated Real  
Energy (Ph), per  
phase  
0 to  
Accumulated Real Energy,  
0xFFFFFFFF Phase A  
0 to  
Accumulated Real Energy,  
Export  
0xFFFFFFFF Phase B  
053  
054  
MSR  
LSR  
0 to  
Accumulated Real Energy,  
R
NV ULong  
kWh  
E
0xFFFFFFFF Phase C  
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27  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Description  
055  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
0 to  
Accumulated Q1 Reactive  
R
R
R
R
R
R
R
R
R
R
R
R
NV ULong  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
E
E
E
E
E
E
E
E
E
E
E
E
0xFFFFFFFF Energy, Phase A  
056  
057  
058  
059  
060  
061  
062  
063  
064  
065  
066  
067  
068  
069  
070  
071  
072  
073  
074  
075  
076  
077  
078  
0 to  
Accumulated Q1 Reactive  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
0xFFFFFFFF Energy, Phase B  
0 to  
Accumulated Q1 Reactive  
0xFFFFFFFF Energy, Phase C  
Import  
0 to  
Accumulated Q2 Reactive  
0xFFFFFFFF Energy, Phase A  
0 to  
Accumulated Q2 Reactive  
0xFFFFFFFF Energy, Phase B  
0 to  
Accumulated Q2 Reactive  
0xFFFFFFFF Energy, Phase C  
Accumulated  
Reactive Energy  
(Qh), Per Phase  
0 to  
Accumulated Q3 Reactive  
0xFFFFFFFF Energy, Phase A  
0 to  
Accumulated Q3 Reactive  
0xFFFFFFFF Energy, Phase B  
0 to  
Accumulated Q3 Reactive  
0xFFFFFFFF Energy, Phase C  
Export  
0 to  
Accumulated Q4 Reactive  
0xFFFFFFFF Energy, Phase A  
0 to  
Accumulated Q4 Reactive  
0xFFFFFFFF Energy, Phase B  
0 to  
Accumulated Q4 Reactive  
0xFFFFFFFF Energy, Phase C  
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28  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Description  
079  
R
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
MSR  
LSR  
0 to  
Accumulated Apparent  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
kVAh  
kVAh  
kVAh  
kVAh  
kVAh  
kVAh  
E
E
E
E
E
E
0xFFFFFFFF Energy, Phase A  
080  
081  
R
082  
0 to  
Accumulated Apparent  
Import  
0xFFFFFFFF Energy, Phase B  
083  
R
084  
0 to  
Accumulated Apparent  
Accumulated  
Apparent Energy  
(Sh), Per Phase  
0xFFFFFFFF Energy, Phase C  
085  
R
086  
0 to  
Accumulated Apparent  
0xFFFFFFFF Energy, Phase A  
087  
R
088  
0 to  
Accumulated Apparent  
Export  
0xFFFFFFFF Energy, Phase B  
089  
R
090  
0 to  
Accumulated Apparent  
0xFFFFFFFF Energy, Phase C  
-32767 to  
+32767  
091  
092  
093  
094  
095  
096  
097  
098  
099  
100  
101  
102  
R
R
R
R
R
R
R
R
R
R
R
R
SInt  
SInt  
SInt  
SInt  
SInt  
SInt  
UInt  
UInt  
UInt  
SInt  
SInt  
SInt  
kW  
W
Real Power (P), Phase A  
-32767 to  
+32767  
kW  
W
Real Power (P), Phase B  
Real Power (P)  
-32767 to  
+32767  
kW  
W
Real Power (P), Phase C  
-32767 to  
+32767  
kVAR  
kVAR  
kVAR  
kVA  
W
Reactive Power (Q), Phase A  
Reactive Power (Q), Phase B  
Reactive Power (Q), Phase C  
Apparent Power (S), Phase A  
Apparent Power (S), Phase B  
Apparent Power (S), Phase C  
Power Factor (PF), Phase A  
Power Factor (PF), Phase B  
Power Factor (PF), Phase C  
-32767 to  
+32767  
W
Reactive Power (Q)  
Apparent Power (S)  
Power Factor (PF)  
-32767 to  
+32767  
W
W
0 to 32767  
0 to 32767  
0 to 32767  
kVA  
W
kVA  
W
-10000 to  
+10000  
Ratio  
Ratio  
Ratio  
0.0001  
0.0001  
0.0001  
-10000 to  
+10000  
-10000 to  
+10000  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
R
R
R
R
R
R
R
R
R
R
UInt  
UInt  
UInt  
UInt  
UInt  
UInt  
UInt  
UInt  
UInt  
UInt  
Volt  
Volt  
Volt  
Volt  
Volt  
Volt  
Amp  
Amp  
Amp  
V
V
V
V
V
V
I
0 to 32767  
0 to 32767  
0 to 32767  
0 to 32767  
0 to 32767  
0 to 32767  
0 to 32767  
0 to 32767  
0 to 32767  
Voltage (U), Phase A-B  
Voltage (U), Phase B-C  
Voltage (U), Phase A-C  
Voltage (V), Phase A-N  
Voltage (V), Phase B-N  
Voltage (V), Phase C-N  
Current, Phase A  
Line-to-Line voltage (U)  
Line-to-Neutral voltage (V)  
Current  
I
Current, Phase B  
I
Current, Phase C  
Reserved (returns 0x8000 - QNAN)  
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29  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Description  
Reset:  
- Write 30078 (0x757E) to clear all energy accumulators to 0 (all).  
- Write 21211 (0x52DB) to begin new demand sub-interval calculation cycle. Takes effect at the end of  
the next 1 second calculation cycle. Write no more frequently than every 10 seconds.  
- Write 21212 (0x52DC) to reset max. demand values to present demand values. Takes effect at the end  
of the next 1 second calculation cycle. Write no more frequently than every 10 seconds.  
- Write 16640 (0x4100) to reset logging.  
129  
R/W  
UInt  
N/A  
- Write 16498 (0x4072) to clear pulse counts to zero.  
- Read (returns 0).  
Single Phase: A + N  
Single Phase: A + B  
10,  
11,  
12,  
31,  
40  
System Type  
Single Split Phase: A + B + N  
130  
R/W NV UInt  
(Note: only the indicated phases are  
monitored for phase loss)  
3 phase ∆, A + B + C, no N  
3 phase Y, A + B + C + N  
CT Ratio – Primary  
131  
132  
R/W NV UInt  
R/W NV UInt  
Amps  
1-32000  
1, 3  
Current inputs  
CT Ratio – Secondary Interface (1 or 1/3 V, may not be user  
configurable)  
PT Ratio: The meter scales this value by 100 (i.e. entering 200 yields a potential transformer ratio of  
2:1). The default is 100 (1.00:1), which is with no PT attached. Set this value before setting the system  
voltage (below).  
133  
134  
R/W NV UInt  
R/W NV UInt  
100  
0.01-320.00  
82-32000  
System Voltage: This voltage is line to line, unless in system type 10 (register 130), which is line to  
neutral. The meter uses this value to calculate the full scale power for the pulse configuration (below),  
and as full scale for phase loss (register 142). The meter will refuse voltages that are outside the range  
of 82-660 volts when divided by the PT Ratio (above).  
Theoretical Maximum System Power – This read only register is the theoretical maximum power the  
meter expects to see on a service. It is calculated by the meter from the system type (register 130), CT  
size (register 131), and system voltage (register 134) and is updated whenever the user changes any of  
these parameters. It is used to determine the maximum power the pulse outputs can keep up with. This  
integer register has the same scale as other integer power registers (see register 140 for power scaling).  
135  
R
R
NV UInt  
UInt  
kW  
W
1-32767  
136  
137  
138  
139  
140  
Reserved (returns 0)  
R/W NV UInt  
0,1  
Display Units: 0 = IEC (U, V, P, Q, S), 1 = IEEE (default: VLL, VLN, W, VAR, VA)  
-4 0.0001  
-3 0.001  
-2 0.01  
-1 0.1  
0 1.0  
1 10.0  
Scale Factors  
R
R
R
SInt  
SInt  
SInt  
Scale Factor I (Current)  
Scale Factor V (Voltage)  
Scale Factor W (Power)  
Note: These registers contain a signed integer,  
which scales the corresponding integer  
registers. Floating point registers are not  
scaled. Scaling is recalculated when the meter  
configuration is changed.  
2 100.0  
3 1000.0  
141  
R
SInt  
Scale Factor E (Energy)  
4 10000.0  
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30  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Description  
Phase Loss Voltage Threshold in percent of system  
voltage (register 134). Default value is 10 (%). Any  
phase (as configured in register 130) whose level  
drops below this threshold triggers a phase loss alert,  
i.e., if the system voltage is set to 480 V L-L, the L-N  
voltage for each phase should be 277 V. When the  
threshold is set to 10%, if any phase drops more  
than 10% below 277 V, (less than 249 V), or if any  
L-L voltage drops more than 10% below 480 V (less  
than 432 V) the corresponding phase loss alarm bit in  
register 146 will be true.  
142  
R/W NV UInt  
%
1-99  
Phase Loss Output  
Note: The phases tested are determined by the  
system type.  
Phase Loss Imbalance Threshold in Percent. Default  
is 25% phase to phase difference. For a 3-phase Y (3  
+ N) system type (40 in register 130), both line-to-neu-  
tral and line-to-line voltages are tested. In a 3-phase  
system type (31 in register 130), only line-to-line  
voltages are examined. In a single split-phase (2 + N)  
system type (12 in register 130), just the line-to-neutral  
voltage are compared.  
143  
R/W NV UInt  
%
1-99  
Wh (& VARh, if equipped)  
Energy per Pulse Output  
Contact Closure. If the meter  
cannot find a pulse duration  
that will keep up with the  
max. system power (register  
135), it will reject the new  
value. Check the meter  
10000,  
1000,  
100,  
144  
R/W NV UInt  
Wh  
10  
configuration and/or try a  
larger value.  
kWh (& VARh, if equipped) Pulse Contacts  
Pulse Contact Closure  
Duration in msec. Read-only.  
Set to the slowest duration  
that will keep up with the  
theoretical max. system  
power (register 135). The  
open time ≥ the closure  
time, so the max. pulse  
rate (pulses per sec) is the  
inverse of double the pulse  
time.  
Note: The kWh pulse contact can keep up with a maximum power (Watts)  
of 1800000 x Wh pulse weight ÷ contact closure duration (in msec).  
500,  
250,  
100,  
50,  
25,  
10  
145  
R
NV UInt  
msec  
Error Bitmap. 1 = Active:  
Bit 0: Phase A Voltage out of range  
Bit 1: Phase B Voltage out of range  
Bit 2: Phase C Voltage out of range  
Bit 3: Phase A Current out of range  
Bit 4: Phase B Current out of range  
Bit 5: Phase C Current out of range  
Bit 6: Frequency out of the range of 45 to 65 Hz -OR- insufficient voltage to determine frequency.  
Bit 7: Reserved for future use  
Bit 8: Phase Loss A  
146  
R
UInt  
Bit 9: Phase Loss B  
Bit 10: Phase Loss C  
Bit 11: Low Power Factor on A with one or more phases having a PF less than 0.5 due to mis-wiring of  
phases  
Bit 12: Low Power Factor on B  
Bit 13: Low Power Factor on C  
Bit 14: Energy pulse output overrun error. The pulse outputs are unable to keep up with the total real  
power (registers 3 and 261/262). To fix, increase the pulse energy register (register 144) and reset the  
energy accumulators (see reset register 129).  
Bit 15: Energy pulse output configuration error (present pulse energy setting may not keep up with the  
theoretical max. system power; see register 135). To fix, increase the pulse energy (register 144).  
147  
148  
R
R
NV UInt  
UInt  
0-32767  
Count of Energy Accumulator resets  
Reserved (returns 0)  
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31  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Description  
Number of Sub-Intervals per Demand Interval. Sets the number of sub-intervals  
that make a single demand interval. For block demand, set this to 1. Default is  
1. When sub-interval length register #150 is set to 0 (sync-to-comms mode), this  
register is ignored.  
149  
150  
R/W NV UInt  
R/W NV UInt  
1-6  
Demand  
Calculation  
Sub-Interval Length in seconds. For sync-to-comms, set this to 0 and use the reset  
register (129) to externally re-start the sub-interval. This is also the logging interval.  
Seconds  
0, 10-32767  
151  
152  
R/W  
R
UInt  
1-32767  
0-32767  
Reserved (returns 0)  
Power Up Counter  
NV UInt  
Output Configuration. EM3555 units have a N.O. energy contact and N.C. (Form B) phase loss contact,  
so this register will always return a “0”.  
153  
154  
R
R
NV UInt  
UInt  
0-32767  
Reserved (returns 0)  
Logging Configuration and Status  
Least Significant Byte  
(LSB)  
Most Significant Byte (MSB)  
Day /  
Month  
155  
R/W NV UInt  
See Bytes  
Date / Time Clock. Following a power cycle, resets  
Month 1-12  
Day 1-31 (0x01-0x1F)  
to:  
(0x01-0x0C)  
Day 01  
Hour 00  
Month 01  
Year (20) 00  
Hour /  
Year  
Year 0-199  
(0x00-0xC7)  
156  
157  
R/W NV UInt  
R/W NV UInt  
See Bytes  
See Bytes  
Hour 0-23 (0x00-0x17)  
Seconds  
/
Minutes 0-59  
(0x00-0x3B)  
Seconds 0-59 (0x00-0x3B)  
Minutes  
Logging Read Page Register. Selects which of the register logs to read (see registers 169-178). 1-10  
are valid entries that put the meter into log reading mode, temporarily pausing logging. When set to 0  
(no variable selected for reading), normal logging resumes. The meter will buffer one set of log entries  
while in reading mode if a sub-interval timeout occurs (read/write collision). Default is 0.  
Note: this buffered data will be written to the log, and logging will resume on the following sub-interval  
timeout whether the page register has been cleared or not, resulting in the appearance of data moving  
in the buffer during reads. To avoid this, log buffer reads should be completed and this register set back  
to 0 in less time than the demand sub-interval (preferred) or logging should be halted by setting Bit 1 in  
register 158 (logs may be missed).  
158  
159  
R/W NV UInt  
0-10  
Logging Configuration Register (Bit Mapped):  
Bit 0: Clear to 0 for circular log buffer mode. Set to 1 for single shot logging mode. Default is 0 (Circular).  
Bit 1: Clear to 0 to enable Logging. Set to 1 to halt logging. Default is 0 (Log).  
R/W NV UInt  
Logging Status Register (Bit Mapped):  
Bit 0: Log buffer full – Set to 1 when one single shot mode has filled the log buffer. In this condition,  
the Logged Entry Count will continue to increment. Cleared to 0 when logging is restarted (see reset  
command register 129).  
Bit 1: Log Buffer Read Collision 1 – Set to 1 if the meter tried to save log data while the user was  
reading the log (Logging Page Register has been set to something other than 0). On the first collision,  
the meter holds the data until the next sub-interval and then writes the saved data to the log as well as  
the data for that interval. This bit is cleared to 0 on the first demand interval with Logging Page Register  
= 0.  
160  
R
NV UInt  
Bit 2: Log Buffer Read Collision 2 – Set to 1 on the 2nd attempt to save log data while the user is  
reading the log (Logging Page Register is set to something other than 0). At this point the meter ignores  
the read condition and does a double write, first of the values saved from the previous cycle, and then  
the present values. If the read condition is not removed the meter continues to write the log data as it  
normally would. This bit is cleared to 0 on the first demand interval with Logging Page Register = 0.  
Bit 3: Logging Reset – The log has been reset during the previous demand sub-interval.  
Bit 4: Logging Interrupted – logging has been interrupted (power cycled, log configuration change, etc.)  
during the previous demand sub-interval.  
Bit 5: RTC Changed – The real time clock had been changed during the previous demand sub-interval.  
Bit 6: RTC Reset - The real time clock has been reset to the year 2000 and needs to be re-initialized.  
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32  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Description  
Log Buffer Wrap / Missed Log Counter. In continuous mode, this counter increments each time the  
internal circular log buffer wraps and overwrites old data. The total number of logged entries since the  
last log reset is: (Register 161 x 5760) + Register 163. In single shot mode this counter is the number of  
log entries lost due to the buffer being full. The counter is cleared on logging reset.  
161  
R
NV UInt  
0-32767  
Max Number of Logging Days. Based on the Sub-Interval Length and the depth of the log buffer, this  
register shows the maximum number of days that data will be logged following a reset until the Buffer is  
full (Single Shot Mode) or overwrites old data (Continuous).  
162  
163  
R
R
NV UInt  
NV UInt  
0-32767  
0-32767  
Number of Logged Entries since the log buffer wrapped or was reset. In single shot mode, this is the  
total number of valid entries in the buffer. Any entries beyond this will read back as QNAN (0x8000).  
Real Energy Consumption  
(MSR)  
164  
165  
0-0xFFFF  
0-0xFFFF  
Real Energy (Register 001/002) starting value. Corresponds to when  
R
R
NV ULong  
NV UInt  
kWh  
E
logging is started, reset, or rolls.  
Real Energy Consumption  
(LSR)  
Least Significant Byte  
(LSB)  
Most Significant Byte (MSB)  
Month /  
Day  
166  
See Bytes  
Month 1-12  
(0x01-0x0C)  
Date & Time of the newest entry in the log. After a  
power cycle, resets to:  
Day 1-31 (0x01-0x1F)  
Hour 0-23 (0x00-0x17)  
Seconds 0-59 (0x00-0x3B)  
Day 01  
Hour 00  
Month 01  
Year (20) 00  
Year /  
Hour  
Year 0-199  
(0x00-0xC7)  
167  
168  
R
R
NV UInt  
NV UInt  
See Bytes  
See Bytes  
Minutes  
/
Seconds  
Minutes 0-59  
(0x00-0x3B)  
Log Register 1 –  
Default is 3 (Import Real  
Energy MSR)  
169  
170  
171  
172  
173  
174  
175  
176  
177  
178  
R/W NV UInt  
R/W NV UInt  
R/W NV UInt  
R/W NV UInt  
R/W NV UInt  
R/W NV UInt  
R/W NV UInt  
R/W NV UInt  
R/W NV UInt  
R/W NV UInt  
Log Register 2 –  
Default is 4 (Import Real  
Energy LSR)  
Log Register 3 –  
Default is 5 (Export Real  
Energy MSR)  
Log Register 4 –  
Default is 6 (Export Real  
Energy LSR)  
Log Register 5 –  
Default is 29 (Real Demand)  
1-42,  
146,  
155-157,  
257-336  
Log Register Selection – Write the number of the 16 bit register to be  
logged. To log a 32 bit value (such as accumulators and floating point  
values) two log registers must be used, one each for the most and least  
significant register (MSR & LSR).  
Log Register 6 –  
Default is 30 (Reactive  
Demand)  
Log Register 7 –  
Default is 31 (Apparent  
Demand)  
Log Register 8 –  
Default is 155 (Month/Day)  
Log Register 9 –  
Default is 156 (Year/Hour)  
Log Register 10 –  
Default is 157 (Minutes/  
Seconds)  
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33  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Description  
Floating Point Data: Summary of Active Phases  
257/258 R  
259/260 R  
NV Float  
NV Float  
kWh  
kWh  
Accumulated Real Energy: Net (Import - Export)  
Real Energy: Quadrants 1 & 4  
Import  
Accumulated Real Energy  
(Ph)  
Real Energy: Quadrants 2 & 3  
Export  
261/262 R  
263/264 R  
265/266 R  
267/268 R  
269/270 R  
Float  
Float  
Float  
Float  
Float  
kWh  
Reactive Energy: Quadrant 1  
Lags Import Real Energy (IEC) Inductive (IEEE)  
kVARh  
kVARh  
kVARh  
kVARh  
Reactive Energy: Quadrant 2  
Leads Export Real Energy (IEC) Inductive (IEEE)  
Accumulated Reactive  
Energy (Qh):  
Quadrants 1+2= Import  
Quadrants 3+4= Export  
Clear via register  
129  
Reactive Energy: Quadrant 3  
Lags Export Real Energy (IEC) Capacitive (IEEE)  
Reactive Energy: Quadrant 4  
Leads Import Real Energy (IEC) Capacitive (IEEE)  
271/272 R  
273/274 R  
NV Float  
NV Float  
kVAh  
kVAh  
Apparent Energy: Net (Import - Export)  
Accumulated Apparent  
Energy (Sh): Import and  
Export correspond with Real  
Energy  
Apparent Energy: Quadrants 1 & 4  
Import  
Apparent Energy: Quadrants 2 & 3  
Export  
275/276 R  
NV Float  
kVAh  
277/278 R  
279/280 R  
281/282 R  
283/284 R  
285/286 R  
287/288 R  
289/290 R  
291/292 R  
293/294 R  
295/296 R  
297/298 R  
299/300 R  
301/302 R  
303/304 R  
305/306 R  
307/308 R  
309/310 R  
Float  
Float  
kW  
Total Net Instantaneous Real (P) Power  
Total Net Instantaneous Reactive (Q) Power  
Total Net Instantaneous Apparent (S) Power  
Total Power Factor (Total kW / Total kVA)  
Voltage, L-L (U), average of active phases  
Voltage, L-N (V), average of active phases  
Current, average of active phases  
Frequency  
kVAR  
kVA  
Ratio  
Volt  
Float  
Float  
0.0-1.0  
Float  
Float  
Volt  
Float  
Amp  
Hz  
Float  
45.0-65.0  
Float  
kW  
Total Real Power Present Demand  
Total Reactive Power Present Demand  
Total Apparent Power Present Demand  
Total Real Power Max. Demand  
Float  
kVAR  
kVA  
kW  
Float  
NV Float  
NV Float  
NV Float  
NV Float  
NV Float  
NV Float  
Float  
kVAR  
kVA  
kW  
Total Reactive Power Max. Demand  
Total Apparent Power Max. Demand  
Total Real Power Max. Demand  
Import  
Export  
kVAR  
kVA  
Total Reactive Power Max. Demand  
Total Apparent Power Max. Demand  
Reserved (reports QNAN - 0x7FC00000)  
311/312  
R
Contact closure counters. Valid for both pulse  
inputs and outputs. EM3555 counts are shown in  
parentheses. See register 144 for the weight of  
each pulse output count. These values are derived  
from the 32 bit integer counter and will roll over to  
0 when the integer counters do. Inputs are user  
defined.  
313/314 R  
Float  
1
1
0-4294967040 Pulse Counter 1 (Import Real Energy)  
315/316 R  
Float  
0-4294967040 Pulse Counter 2 (Export Reactive Energy)  
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34  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Description  
Floating Point Data: Per Phase  
317/318 R  
319/320 R  
321/322 R  
323/324 R  
325/326 R  
327/328 R  
329/330 R  
331/332 R  
333/334 R  
335/336 R  
337/338 R  
339/340 R  
341/342 R  
343/344 R  
345/346 R  
347/348 R  
349/350 R  
351/352 R  
353/354 R  
355/356 R  
357/358 R  
359/360 R  
361/362 R  
363/364 R  
365/366 R  
367/368 R  
369/370 R  
371/372 R  
373/374 R  
375/376 R  
377/378 R  
379/380 R  
381/382 R  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
kWh  
Accumulated Real Energy, Phase A  
Accumulated Real Energy, Phase B  
Accumulated Real Energy, Phase C  
Accumulated Real Energy, Phase A  
Accumulated Real Energy, Phase B  
Accumulated Real Energy, Phase C  
Accumulated Q1 Reactive Energy, Phase A  
Accumulated Q1 Reactive Energy, Phase B  
Accumulated Q1 Reactive Energy, Phase C  
Accumulated Q2 Reactive Energy, Phase A  
Accumulated Q2 Reactive Energy, Phase B  
Accumulated Q2 Reactive Energy, Phase C  
Accumulated Q3 Reactive Energy, Phase A  
Accumulated Q3 Reactive Energy, Phase B  
Accumulated Q3 Reactive Energy, Phase C  
Accumulated Q4 Reactive Energy, Phase A  
Accumulated Q4 Reactive Energy, Phase B  
Accumulated Q4 Reactive Energy, Phase C  
Accumulated Apparent Energy, Phase A  
Accumulated Apparent Energy, Phase B  
Accumulated Apparent Energy, Phase C  
Accumulated Apparent Energy, Phase A  
Accumulated Apparent Energy, Phase B  
Accumulated Apparent Energy, Phase C  
Real Power, Phase A  
kWh  
Import  
Export  
kWh  
Accumulated Real Energy (Ph)  
kWh  
kWh  
kWh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVARh  
kVAh  
kVAh  
kVAh  
kVAh  
kVAh  
kVAh  
kW  
Quadrant 1  
Import  
Quadrant 2  
Quadrant 3  
Quadrant 4  
Import  
Accumulated  
Reactive Energy  
(Qh)  
Export  
Accumulated Apparent Energy (Sh)  
Export  
kW  
Real Power, Phase B  
Real Power (P)  
kW  
Real Power, Phase C  
kVAR  
kVAR  
kVAR  
kVA  
Reactive Power, Phase A  
Reactive Power, Phase B  
Reactive Power (Q)  
Apparent Power (S)  
Reactive Power, Phase C  
Apparent Power, Phase A  
kVA  
Apparent Power, Phase B  
kVA  
Apparent Power, Phase C  
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35  
EM3555  
Modbus Point Map  
ZL0093-0A  
11/2011  
Description  
383/384 R  
385/386 R  
387/388 R  
389/390 R  
391/392 R  
393/394 R  
395/396 R  
397/398 R  
399/400 R  
401/402 R  
403/404 R  
405/406 R  
407/408 R  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Float  
Ratio  
Ratio  
Ratio  
Volt  
0.0-1.0  
0.0-1.0  
0.0-1.0  
Power Factor, Phase A  
Power Factor, Phase B  
Power Factor, Phase C  
Voltage, Phase A-B  
Power Factor (PF)  
Volt  
Voltage, Phase B-C  
Voltage, Phase A-C  
Voltage, Phase A-N  
Voltage, Phase B-N  
Voltage, Phase C-N  
Current, Phase A  
Line to Line Voltage (U)  
Line to Neutral (V)  
Current  
Volt  
Volt  
Volt  
Volt  
Amp  
Amp  
Amp  
Current, Phase B  
Current, Phase C  
Reserved (reports QNAN - 0x7FC00000)  
Logging Interface  
8000  
(to)  
R
NV  
Newest Logged Data Entry  
(to)  
5760 entries total (60 days at a 15 minute sub-interval)  
13760  
R
NV  
Oldest Logged Data Entry  
Invalid or Quiet Not A Number (QNAN) conditions are indicated by 0x8000 (negative zero) for 16 bit integers and 0x7FC00000 for 32 bit floating point numbers.  
Floating point numbers are encoded per the IEEE 754 32-bit specifications.  
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36  
EM3555  
ZL0093-0A  
11/2011  
SunSpecCompliantCommonandMeterModelRegisterBlocks  
SUNSPEC COMPLIANT COMMON AND METER MODEL REGISTER BLOCKS  
Table 9  
SunSpec Compliance Information (see www.sunspec.org for the original specifications)  
SunSpec  
Name  
Description  
SunSpec 1.0 Common Model  
40001  
0x5375  
6e53  
ASCII “SunS”. Identifies this as the beginning of a  
SunSpec Modbus point  
R
NV ULong  
C_SunSpec_ID  
40002  
40003  
R
R
NV UInt  
NV UInt  
1
C_SunSpec_DID SunSpec common model Device ID  
C_SunSpec_  
Length  
40004  
65  
Length of the common model block  
null terminated ASCII text string = “Schneider  
40005 to 40020  
R
NV String (32) ASCII  
C_Manufacturer  
Electric”  
40021 to 40036  
40037 to 40044  
40045 to 40052  
40053 to 40068  
R
R
R
R
NV String (32) ASCII  
NV String (16) ASCII  
NV String (16) ASCII  
NV String (32) ASCII  
C_Model  
null terminated ASCII text string = “EM3555”  
null terminated ASCII text string  
null terminated ASCII text string  
null terminated ASCII text string  
C_Options  
C_Version  
C_SerialNumber  
C_SunSpec_  
Length  
40068  
R
NV UInt  
ASCII  
Modbus address  
SunSpec 1.1 Integer Meter Model  
Identification  
201 to 204  
105  
SunSpec Integer meter model device IDs. Meter  
configuration by device ID:  
201 = single phase (A-N or A-B) meter  
202 = split single phase (A-B-N) meter  
203 = Wye-connect 3-phase (ABCN) meter  
204 = delta-connect 3-phase (ABC) meter  
40070  
40071  
R
R
NV UInt  
NV UInt  
C_SunSpec_DID  
C_SunSpec_  
Length  
Length of the meter model block  
Current  
M_AC_Current_SF -32767 to +32767  
M_AC_Current_SF -32767 to +32767  
M_AC_Current_SF -32767 to +32767  
M_AC_Current_SF -32767 to +32767  
1
40072  
40073  
40074  
40075  
40076  
R
R
R
R
R
SInt  
SInt  
Amps  
Amps  
Amps  
Amps  
M_AC_Current  
AC Current (sum of active phases)  
M_AC_Current_A Phase A AC current  
M_AC_Current_B Phase B AC current  
M_AC_Current_C Phase C AC current  
M_AC_Current_CN AC Current Scale Factor  
SInt  
SInt  
NV SInt  
Voltage: Line to Neutral  
Line to Neutral AC voltage (average of active  
phases)  
40077  
R
SInt  
Volts  
M_AC_Voltage_SF -32767 to +32767  
M_AC_Voltage_LN  
40078  
40079  
40080  
R
R
R
SInt  
SInt  
SInt  
Volts  
Volts  
Volts  
M_AC_Voltage_SF -32767 to +32767  
M_AC_Voltage_SF -32767 to +32767  
M_AC_Voltage_SF -32767 to +32767  
Voltage: Line to Line  
M_AC_Voltage_AN Phase A to Neutral AC Voltage  
M_AC_Voltage_BN Phase B to Neutral AC Voltage  
M_AC_Voltage_CN Phase C to Neutral AC Voltage  
40081  
40082  
40083  
40084  
40085  
R
R
R
R
R
SInt  
SInt  
Volts  
Volts  
Volts  
Volts  
M_AC_Voltage_SF -32767 to +32767  
M_AC_Voltage_SF -32767 to +32767  
M_AC_Voltage_SF -32767 to +32767  
M_AC_Voltage_SF -32767 to +32767  
1
M_AC_Voltage_LL Line to Line AC voltage (average of active phases)  
M_AC_Voltage_AB Phase A to Phase B AC Voltage  
M_AC_Voltage_BC Phase B to Phase C AC Voltage  
M_AC_Voltage_CA Phase C to Phase A AC Voltage  
M_AC_Voltage_SF AC Voltage Scale Factor  
SInt  
SInt  
NV SInt  
Frequency  
40086  
40087  
R
R
SInt  
Hertz  
SF  
M_AC_Freq_SF  
1
-32767 to +32767  
M_AC_Freq  
AC Frequency  
NV SInt  
M_AC_Freq_SF  
AC Frequency Scale Factor  
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37  
EM3555  
ZL0093-0A  
11/2011  
SunSpec Compliant Common and Meter Model Register Blocks  
SunSpec  
Name  
Description  
Power  
Real Power  
40088  
40089  
40090  
40091  
40092  
R
R
R
R
R
SInt  
SInt  
Watts  
Watts  
Watts  
Watts  
SF  
M_AC_Power_SF  
M_AC_Power_SF  
M_AC_Power_SF  
M_AC_Power_SF  
1
-32767 to +32767  
-32767 to +32767  
-32767 to +32767  
-32767 to +32767  
M_AC_Power  
Total Real Power (sum of active phases)  
Phase A AC Real Power  
M_AC_Power_A  
M_AC_Power_B  
M_AC_Power_C  
SInt  
Phase B AC Real Power  
SInt  
Phase A AC Real Power  
NV SInt  
M_AC_Power_SF AC Real Power Scale Factor  
Apparent Power  
-32767 to +32767  
-32767 to +32767  
-32767 to +32767  
-32767 to +32767  
40093  
40094  
40095  
40096  
40097  
R
R
R
R
R
SInt  
SInt  
Volt-Amps M_AC_VA_SF  
Volt-Amps M_AC_VA_SF  
Volt-Amps M_AC_VA_SF  
Volt-Amps M_AC_VA_SF  
M_AC_VA  
Total AC Apparent Power (sum of active phases)  
M_AC_VA_A  
M_AC_VA_B  
M_AC_VA_C  
M_AC_VA_SF  
Phase A AC Apparent Power  
Phase B AC Apparent Power  
Phase A AC Apparent Power  
AC Apparent Power Scale Factor  
SInt  
SInt  
NV SInt  
SF  
1
Reactive Power  
-32767 to +32767  
-32767 to +32767  
-32767 to +32767  
-32767 to +32767  
40098  
40099  
40100  
40101  
40102  
R
R
R
R
R
SInt  
SInt  
VAR  
VAR  
VAR  
VAR  
SF  
M_AC_VAR_SF  
M_AC_VAR_SF  
M_AC_VAR_SF  
M_AC_VAR_SF  
1
M_AC_VAR  
Total AC Reactive Power (sum of active phases)  
Phase A AC Reactive Power  
M_AC_VAR_A  
M_AC_VAR_B  
M_AC_VAR_C  
M_AC_VAR_SF  
SInt  
Phase B AC Reactive Power  
SInt  
Phase A AC Reactive Power  
NV SInt  
AC Reactive Power Scale Factor  
Power Factor  
40103  
40104  
40105  
40106  
40107  
R
R
R
R
R
SInt  
SInt  
%
%
%
%
SF  
M_AC_PF_SF  
M_AC_PF_SF  
M_AC_PF_SF  
M_AC_PF_SF  
1
-32767 to +32767  
-32767 to +32767  
-32767 to +32767  
-32767 to +32767  
M_AC_PF  
Average Power Factor (average of active phases)  
Phase A Power Factor  
M_AC_PF_A  
M_AC_PF_B  
M_AC_PF_C  
M_AC_PF_SF  
SInt  
Phase B Power Factor  
SInt  
Phase A Power Factor  
NV SInt  
AC Power Factor Scale Factor  
Accumulated Energy  
Real Energy  
40108  
40109  
40110  
40111  
40112  
40113  
40114  
40115  
40116  
40117  
40118  
40119  
40120  
40121  
40122  
40123  
40124  
R
R
R
R
R
R
R
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
Watt-hours M_Energy_W_SF  
Watt-hours M_Energy_W_SF  
Watt-hours M_Energy_W_SF  
Watt-hours M_Energy_W_SF  
Watt-hours M_Energy_W_SF  
Watt-hours M_Energy_W_SF  
Watt-hours M_Energy_W_SF  
Watt-hours M_Energy_W_SF  
0x0 to 0xFFFFFFFF M_Exported_W  
Total Exported Real Energy  
0x0 to 0xFFFFFFFF M_Exported_W_A Phase A Exported Real Energy  
0x0 to 0xFFFFFFFF M_Exported_W_B Phase B Exported Real Energy  
0x0 to 0xFFFFFFFF M_Exported_W_C Phase C Exported Real Energy  
0x0 to 0xFFFFFFFF M_Imported_W  
Total Imported Real Energy  
0x0 to 0xFFFFFFFF M_Imported_W_A Phase A Imported Real Energy  
0x0 to 0xFFFFFFFF M_Imported_W_B Phase B Imported Real Energy  
R
R
NV ULong  
NV SF  
0x0 to 0xFFFFFFFF M_Imported_W_C Phase C Imported Real Energy  
M_Energy_W_SF Real Energy Scale Factor  
SF  
1
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38  
EM3555  
ZL0093-0A  
11/2011  
SunSpecCompliantCommonandMeterModelRegisterBlocks  
SunSpec  
Description  
Name  
Apparent Energy  
M_Energy_VA_SF 0x0 to 0xFFFFFFFF M_Exported_VA  
40125  
40126  
40127  
40128  
40129  
40130  
40131  
40132  
40133  
40134  
40135  
40136  
40137  
40138  
40139  
40140  
40141  
R
R
R
R
R
R
R
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
VA-hours  
VA-hours  
VA-hours  
VA-hours  
VA-hours  
VA-hours  
VA-hours  
Total Exported Apparent Energy  
M_Energy_VA_SF 0x0 to 0xFFFFFFFF M_Exported_VA_A Phase A Exported Apparent Energy  
M_Energy_VA_SF 0x0 to 0xFFFFFFFF M_Exported_VA_B Phase B Exported Apparent Energy  
M_Energy_VA_SF 0x0 to 0xFFFFFFFF M_Exported_VA_C Phase C Exported Apparent Energy  
M_Energy_VA_SF 0x0 to 0xFFFFFFFF M_Imported_VA  
Total Imported Apparent Energy  
M_Energy_VA_SF 0x0 to 0xFFFFFFFF M_Imported_VA_A Phase A Imported Apparent Energy  
M_Energy_VA_SF 0x0 to 0xFFFFFFFF M_Imported_VA_B Phase B Imported Apparent Energy  
M_Energy_VA_SF 0x0 to 0xFFFFFFFF M_Imported_VA_C Phase C Imported Apparent Energy  
R
R
NV ULong  
NV UInt  
VA-hours  
SF  
1
M_Energy_VA_SF Real Energy Scale Factor  
Reactive Energy  
40142  
40143  
40144  
40145  
40146  
40147  
40148  
40149  
40150  
40151  
40152  
40153  
40154  
40155  
40156  
40157  
40158  
40159  
40160  
40161  
40162  
40163  
40164  
40165  
40166  
40167  
40168  
40169  
40170  
40171  
40172  
40173  
40174  
M_Import_VARh_  
Q1  
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
NV ULong  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
VAR-hours M_Energy_VAR_SF 0x0 to 0xFFFFFFFF  
Quadrant 1: Total Imported Reactive Energy  
M_Import_VARh_ Phase A - Quadrant 1: Total Imported Reactive  
Q1A  
Energy  
M_Import_VARh_ Phase B - Quadrant 1: Total Imported Reactive  
Q1B Energy  
M_Import_VARh_ Phase C - Quadrant 1: Total Imported Reactive  
Q1C  
Energy  
M_Import_VARh_  
Q2  
Quadrant 2: Total Imported Reactive Energy  
M_Import_VARh_ Phase A - Quadrant 2: Total Imported Reactive  
Q2A Energy  
M_Import_VARh_ Phase B - Quadrant 2: Total Imported Reactive  
Q2B Energy  
M_Import_VARh_ Phase C - Quadrant 2: Total Imported Reactive  
Q2C  
Energy  
M_Export_VARh_  
Q3  
Quadrant 3: Total Exported Reactive Energy  
M_Export_VARh_ Phase A - Quadrant 3: Total Exported Reactive  
Q3A Energy  
M_Export_VARh_ Phase B - Quadrant 3: Total Exported Reactive  
Q3B Energy  
M_Export_VARh_ Phase C - Quadrant 3: Total Exported Reactive  
Q3C  
Energy  
M_Export_VARh_  
Q4  
Quadrant 4: Total Exported Reactive Energy  
M_Export_VARh_ Phase A - Quadrant 4: Total Exported Reactive  
Q4A Energy  
M_Export_VARh_ Phase B - Quadrant 4: Total Exported Reactive  
Q4B Energy  
M_Export_VARh_ Phase C - Quadrant 4: Total Exported Reactive  
Q4C Energy  
R
R
NV ULong  
NV UInt  
SF  
1
M_Energy_VA_SF Reactive Energy Scale Factor  
© 2011 Schneider Electric All Rights Reserved.  
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39  
EM3555  
ZL0093-0A  
11/2011  
SunSpec Compliant Common and Meter Model Register Blocks  
SunSpec  
Name  
Description  
Events  
40175  
M_Events  
Bit Map. See M_EVENT_flags. 0 = no event  
Event  
Bit  
Description  
M_EVENT_Power_ 0x00000004  
Failure  
Loss of power or phase  
M_EVENT_Under_ 0x00000008  
Voltage  
Voltage below threshold  
(phase loss)  
M_EVENT_Low_PF 0x00000010  
Power factor below threshold  
(can indicate misassociated  
voltage and current inputs in  
3-phase systems)  
R
NV ULong  
Flags  
M_EVENT_Over_  
Current  
0x00000020  
0x00000040  
0x00000080  
Current input over threshold  
(out of measurement range)  
40176  
M_EVENT_Over_  
Voltage  
Voltage input over threshold  
(out of measurement range)  
M_EVENT_  
Missing_Sensor  
Sensor not connected (not  
supported)  
M_EVENT_  
Reserved1-8  
0x00000100  
to  
Reserved for future SunSpec  
use  
0x00008000  
M_EVENT_  
OEM1-15  
0x7FFF000  
Reserved for OEMs (not  
used)  
End of SunSpec Block  
C_SunSpec_DID = 0xFFFF  
Uniquely identifies this as the last SunSpec block  
40177  
40178  
R
R
NV UInt  
NV UInt  
0xFFFF  
C_SunSpec_Length = 0  
Last block has no length  
0x0000  
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40  
EM3555  
Troubleshooting  
ZL0093-0A  
11/2011  
TROUBLESHOOTING  
Table 10  
Troubleshooting  
Problem  
Cause  
Solution  
The maintenance wrench  
icon appears in the power  
meter display.  
There is a problem with the  
inputs to the power meter.  
See the Alert sub-menu or the Diagnostic Alert Modbus Register 146  
The display is blank after  
applying control power to  
the meter.  
The meter is not receiving  
adequate power.  
Verify that the meter control power is receiving the required voltage.  
Verify that the heart icon is blinking.  
Check the fuse.  
Incorrect setup values  
Verify the values entered for power meter setup parameters (CT and PT  
ratings, system type, etc., see Setup section).  
The data displayed is  
inaccurate.  
Incorrect voltage inputs  
Check power meter voltage input terminals to verify adequate voltage.  
Power meter is wired  
improperly.  
Check all CTs and PTs to verify correct connection to the same service,  
CT and PT polarity, and adequate powering (see Wiring Diagrams  
section).  
Power meter address is  
incorrect.  
Verify that the meter is correctly addressed (see Setup section).  
Power meter baud rate is  
incorrect.  
Verify that the baud rate of the meter matches that of all other devices  
on its communications link (see Setup section).  
Cannot communicate with  
power meter from a remote  
personal computer.  
Communications lines are  
improperly connected.  
Verify the power meter communications connections (see  
Communications section).  
Verify the terminating resistors are properly installed on both ends  
of a chain of units. Units in the middle of a chain should not have a  
terminator.  
Verify the shield ground is connected between all units.  
Sign of one phase (real  
power) is incorrect  
CT orientation reversed  
Remove CT, reverse orientation, reconnect (qualified personnel only)  
CHINA ROHS COMPLIANCE INFORMATION (EFUP TABLE)  
产品中有毒有害物质或元素的名称及含量Substances  
部件名称  
铅 (Pb) 汞 (Hg) 镉 (Cd) 六价铬 (Cr(VI)) 多溴联苯(PBB) 多溴二苯醚(PBDE)  
电子线路板  
X
O
O
O
O
O
O = 表示该有毒有害物质在该部件所有均质材料中的含量均在 SJ/T11363-2006 标准规定的限量要求以下.  
X = 表示该有毒有害物质至少在该部件的某一均质材料中的含量超出SJ/T11363-2006标准规定的限量要求.  
Z000057-0A  
© 2011 Schneider Electric All Rights Reserved.  
41  
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EM3555  
Installation Guide  
Schneider Electric  
295 Tech Park Dr. Suite 100  
La Vergne TN, 37086  
ION, Modbus, and PowerLogic are either trademarks or registered trademarks of Schneider  
Electric in France, the USA and other countries. Other trademarks used are the property of their  
respective owners.  
Electrical equipment should be installed, operated, serviced, and maintained only by qualified  
personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of  
the use of this material.  
For technical support:  
Global-PMC-Te[email protected]  
(00) + 1 250 544 3010  
Contact your local Schneider Electric sales  
representative for assistance or go to  
ZL0093-0A 11/2011  
www.schneider-electric.com  
© 2011 Schneider Electric. All Rights Reserved.  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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