Power meters

Schneider Electric PM3255 Modbus register map

DIN-rail power and energy meter that measures through 1 A or 5 A current transformers and can also be connected through voltage transformers. It reports current, voltage, power, power factor, frequency, harmonic distortion, demand and four-quadrant energy, and adds two digital inputs, two digital outputs and an RS-485 Modbus RTU port.

Protocol
Modbus RTU
Defaults
RS-485 Modbus RTU (p. 49). Baud rate 9600, 19200 or 38400 (register 6502 codes), parity odd, even or none, one stop bit, address 1 to 247. Supported functions: 03 read holding registers, 16 write multiple registers, 43/14 read device identification, 20 read file record.
Addresses in the manual
1-based register numbers (wire address is the number minus 1)
32 and 64-bit values
Not stated in the manual
Registers listed
88
Checked against
DOCA0006EN-09, 07/2026

Address base. The manual's table format description (p. 50) says the Address column is the value used in the Modbus frame and the Register column is the decimal register number, where register = address + 1. The addresses recorded here are the Register numbers, so the wire address is the printed number minus 1 (for example register 3000 is address 0x0BB7). For example 30 in the manual (Meter name) is address 29 on the wire.

Word order. The manual does not say how 32-bit floats and 64-bit values are laid out across registers.

Modbus Poll and the Modbus protocol itself count from 0. The "Wire address" column is the number to type into Modbus Poll.

Downloads

Register table (CSV) Modbus Poll blocks (CSV) Modbus Poll template (JSON)

The register table has every column on this page. The blocks file imports into Modbus Poll. The template JSON holds the same blocks plus unit, scale and access for scripts.

Registers

88 registers
Manual Wire Register Type Regs Unit Scale Access Area
30 29 Meter nameMeter_Name string 20 1 R Holding (FC03)
50 49 Meter modelMeter_Model string 20 1 R Holding (FC03)
70 69 Manufacturer nameManufacturer string 20 1 R Holding (FC03)
130 129 Serial numberSerial_Number uint32 2 1 R Holding (FC03)
136 135 Hardware revisionHardware_Revision string 5 1 R Holding (FC03)
1637 1636 Present firmware versionFirmware_Version · Encoded in the manual's DLF format, X.Y.ZTT. uint16 1 1 R Holding (FC03)
2129 2128 Energy pulse durationEnergy_Pulse_Duration · Written through the command interface (write by command). uint16 1 ms 1 RW Holding (FC03)
2131 2130 Digital output association for active energy pulseActive_Pulse_Output_Association · 0 = disabled, 1 = DO1 enabled for the active energy pulse output. Written through the command interface (write by command). uint16 1 1 RW Holding (FC03)
2132 2131 Active energy pulse frequencyActive_Pulse_Weight · Written through the command interface (write by command). float32 2 pulse/kWh 1 RW Holding (FC03)
5250 5249 Requested command numberCommand_Requested · First word of the command block (registers 5250 to 5374). uint16 1 1 RW Holding (FC03)
5375 5374 Command statusCommand_Status uint16 1 1 R Holding (FC03)
5376 5375 Command result codeCommand_Result · 0 = valid operation, 3000 = invalid command, 3001 = invalid parameter, 3002 = invalid number of parameters, 3007 = operation not performed. uint16 1 1 R Holding (FC03)
6500 6499 Communication protocolComm_Protocol · 0 = Modbus. uint16 1 1 R Holding (FC03)
6501 6500 Modbus slave addressModbus_Address · Written through the command interface (write by command). uint16 1 1 RW Holding (FC03)
6502 6501 Baud rate codeBaud_Rate · 0 = 9600, 1 = 19200, 2 = 38400. Written through the command interface (write by command). uint16 1 1 RW Holding (FC03)
6503 6502 Parity codeParity · 0 = even, 1 = odd, 2 = none. Written through the command interface (write by command). uint16 1 1 RW Holding (FC03)
7274 7273 Digital input 1 control modeDI1_Control_Mode · 0 = normal input status, 2 = multi-tariff control, 3 = input metering, 5 = energy reset. uint16 1 1 R Holding (FC03)
9673 9672 Digital output 1 control mode statusDO1_Control_Mode · 2 = alarm, 3 = energy, 0xFFFF = disabled. uint16 1 1 R Holding (FC03)
3000 2999 Phase 1 currentCurrent_I1 float32 2 A 1 R Holding (FC03)
3002 3001 Phase 2 currentCurrent_I2 float32 2 A 1 R Holding (FC03)
3004 3003 Phase 3 currentCurrent_I3 float32 2 A 1 R Holding (FC03)
3006 3005 Neutral currentCurrent_In float32 2 A 1 R Holding (FC03)
3010 3009 Average currentCurrent_Avg float32 2 A 1 R Holding (FC03)
3018 3017 Worst current unbalanceCurrent_Unbalance_Worst float32 2 % 1 R Holding (FC03)
3020 3019 Voltage L1 to L2Voltage_L1_L2 float32 2 V 1 R Holding (FC03)
3022 3021 Voltage L2 to L3Voltage_L2_L3 float32 2 V 1 R Holding (FC03)
3024 3023 Voltage L3 to L1Voltage_L3_L1 float32 2 V 1 R Holding (FC03)
3026 3025 Average line to line voltageVoltage_LL_Avg float32 2 V 1 R Holding (FC03)
3028 3027 Voltage L1 to neutralVoltage_L1_N float32 2 V 1 R Holding (FC03)
3030 3029 Voltage L2 to neutralVoltage_L2_N float32 2 V 1 R Holding (FC03)
3032 3031 Voltage L3 to neutralVoltage_L3_N float32 2 V 1 R Holding (FC03)
3036 3035 Average line to neutral voltageVoltage_LN_Avg float32 2 V 1 R Holding (FC03)
3044 3043 Worst line to line voltage unbalanceVoltage_Unbalance_LL_Worst float32 2 % 1 R Holding (FC03)
3052 3051 Worst line to neutral voltage unbalanceVoltage_Unbalance_LN_Worst float32 2 % 1 R Holding (FC03)
3054 3053 Phase 1 active powerActive_Power_L1 float32 2 kW 1 R Holding (FC03)
3056 3055 Phase 2 active powerActive_Power_L2 float32 2 kW 1 R Holding (FC03)
3058 3057 Phase 3 active powerActive_Power_L3 float32 2 kW 1 R Holding (FC03)
3060 3059 Total active powerActive_Power_Total float32 2 kW 1 R Holding (FC03)
3062 3061 Phase 1 reactive powerReactive_Power_L1 float32 2 kVAR 1 R Holding (FC03)
3064 3063 Phase 2 reactive powerReactive_Power_L2 float32 2 kVAR 1 R Holding (FC03)
3066 3065 Phase 3 reactive powerReactive_Power_L3 float32 2 kVAR 1 R Holding (FC03)
3068 3067 Total reactive powerReactive_Power_Total float32 2 kVAR 1 R Holding (FC03)
3070 3069 Phase 1 apparent powerApparent_Power_L1 float32 2 kVA 1 R Holding (FC03)
3072 3071 Phase 2 apparent powerApparent_Power_L2 float32 2 kVA 1 R Holding (FC03)
3074 3073 Phase 3 apparent powerApparent_Power_L3 float32 2 kVA 1 R Holding (FC03)
3076 3075 Total apparent powerApparent_Power_Total float32 2 kVA 1 R Holding (FC03)
3078 3077 Phase 1 power factorPower_Factor_L1 · Listed in the manual as complex format. float32 2 1 R Holding (FC03)
3080 3079 Phase 2 power factorPower_Factor_L2 · Listed in the manual as complex format. float32 2 1 R Holding (FC03)
3082 3081 Phase 3 power factorPower_Factor_L3 · Listed in the manual as complex format. float32 2 1 R Holding (FC03)
3084 3083 Total power factorPower_Factor_Total · Four-quadrant encoding with values between -2 and 2; the quadrant ranges are listed in the manual. float32 2 1 R Holding (FC03)
3108 3107 Total tangent phi (reactive factor)Tangent_Phi_Total float32 2 1 R Holding (FC03)
3110 3109 FrequencyFrequency float32 2 Hz 1 R Holding (FC03)
3132 3131 Meter temperatureTemperature float32 2 °C 1 R Holding (FC03)
45100 45099 Current THD phase 1THD_Current_I1 float32 2 % 1 R Holding (FC03)
45102 45101 Current THD phase 2THD_Current_I2 float32 2 % 1 R Holding (FC03)
45104 45103 Current THD phase 3THD_Current_I3 float32 2 % 1 R Holding (FC03)
45116 45115 Average line to line voltage THDTHD_Voltage_LL_Avg float32 2 % 1 R Holding (FC03)
45126 45125 Average line to neutral voltage THDTHD_Voltage_LN_Avg float32 2 % 1 R Holding (FC03)
4191 4190 Active tariff rateActive_Tariff · 0 = multi-tariff disabled, 1 to 4 = rate 1 to rate 4. Only modifiable when the communication control mode is enabled. Written through the command interface (write by command). uint16 1 1 RW Holding (FC03)
3204 3203 Total active energy importTotal_Active_Energy_Import · Manual type name is Int64; the manual describes it as an unsigned 64-bit value. uint64 4 Wh 1 R Holding (FC03)
3208 3207 Total active energy exportTotal_Active_Energy_Export uint64 4 Wh 1 R Holding (FC03)
3220 3219 Total reactive energy importTotal_Reactive_Energy_Import uint64 4 VARh 1 R Holding (FC03)
3224 3223 Total reactive energy exportTotal_Reactive_Energy_Export uint64 4 VARh 1 R Holding (FC03)
3236 3235 Total apparent energy importTotal_Apparent_Energy_Import uint64 4 VAh 1 R Holding (FC03)
3240 3239 Total apparent energy exportTotal_Apparent_Energy_Export uint64 4 VAh 1 R Holding (FC03)
3256 3255 Partial active energy importPartial_Active_Energy_Import · Partial counter that can be reset. uint64 4 Wh 1 R Holding (FC03)
3272 3271 Partial reactive energy importPartial_Reactive_Energy_Import · Partial counter that can be reset. uint64 4 VARh 1 R Holding (FC03)
3518 3517 Phase 1 active energy importActive_Energy_Import_L1 uint64 4 Wh 1 R Holding (FC03)
3522 3521 Phase 2 active energy importActive_Energy_Import_L2 uint64 4 Wh 1 R Holding (FC03)
3526 3525 Phase 3 active energy importActive_Energy_Import_L3 uint64 4 Wh 1 R Holding (FC03)
4196 4195 Rate 1 active energy importRate1_Active_Energy_Import uint64 4 Wh 1 R Holding (FC03)
4200 4199 Rate 2 active energy importRate2_Active_Energy_Import uint64 4 Wh 1 R Holding (FC03)
4204 4203 Rate 3 active energy importRate3_Active_Energy_Import uint64 4 Wh 1 R Holding (FC03)
4208 4207 Rate 4 active energy importRate4_Active_Energy_Import uint64 4 Wh 1 R Holding (FC03)
45166 45165 Total active energy import (float)Total_Active_Energy_Import_F float32 2 Wh 1 R Holding (FC03)
45168 45167 Total active energy export (float)Total_Active_Energy_Export_F float32 2 Wh 1 R Holding (FC03)
45170 45169 Total reactive energy import (float)Total_Reactive_Energy_Import_F float32 2 VARh 1 R Holding (FC03)
45172 45171 Total reactive energy export (float)Total_Reactive_Energy_Export_F float32 2 VARh 1 R Holding (FC03)
45174 45173 Total apparent energy import (float)Total_Apparent_Energy_Import_F float32 2 VAh 1 R Holding (FC03)
45176 45175 Total apparent energy export (float)Total_Apparent_Energy_Export_F float32 2 VAh 1 R Holding (FC03)
3701 3700 Demand methodDemand_Method · 1 = timed interval sliding block, 2 = timed interval fixed block. Written through the command interface (write by command). uint16 1 1 RW Holding (FC03)
3702 3701 Demand interval durationDemand_Interval · Written through the command interface (write by command). uint16 1 min 1 RW Holding (FC03)
3766 3765 Active power present demandActive_Power_Demand float32 2 kW 1 R Holding (FC03)
3770 3769 Active power peak demandActive_Power_Peak_Demand float32 2 kW 1 R Holding (FC03)
3782 3781 Reactive power present demandReactive_Power_Demand float32 2 kVAR 1 R Holding (FC03)
3786 3785 Reactive power peak demandReactive_Power_Peak_Demand float32 2 kVAR 1 R Holding (FC03)
3798 3797 Apparent power present demandApparent_Power_Demand float32 2 kVA 1 R Holding (FC03)
3802 3801 Apparent power peak demandApparent_Power_Peak_Demand float32 2 kVA 1 R Holding (FC03)

Scale is the number to multiply the raw value by to get the unit. Types with more than one register (32 and 64-bit) follow the word order above.

Open in Modbus Poll

  1. Download the Modbus Poll blocks file.
  2. Open Modbus Poll, connect to the device and set its unit ID. The manual does not state the word order for 32-bit values. Check one known value (a voltage or a counter) and switch the setting if it reads wrong.
  3. In the blocks panel on the right, click Import CSV and pick the file. CSV import is a Pro feature. Without Pro, Modbus Poll polls the first 20 values of your blocks.
  4. The wire addresses are already in the file, so there is no 0-based or 1-based conversion to do.

Once the values look right, export the tag list to Ignition, Kepware, Node-RED, Home Assistant or Voltrus SCADA.

Source and accuracy

Manufacturer document: PM3200 series user manual (productinfo.se.com)

DOCA0006EN-09, 07/2026, p. 49-50, 58-65, 69. Read on 2026-10-24.

Addresses, types, units and scale are taken from the document above. Names and descriptions are written by Voltrus. Firmware versions can differ, so confirm a value on your own device before you rely on it.

Found a mistake? Report it by email with the register address and the manual page.

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