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Power & energy meters Modbus register maps
Updated 29 October 2026
38 power & energy meters register maps from 12 manufacturers: ABB, Accuenergy, Belimo, Carlo Gavazzi, DENT Instruments, Eastron, Eaton, Finder, Janitza, Lovato Electric, Siemens, inepro Metering.
- Energy meter
ABB EQ meter B21 (Modbus RTU)
ABB EQ B21 single-phase 65 A DIN meter with the RS485 interface set to Modbus.
Also known as: B21, EQ B21 - Energy meter
ABB EQ meter B23 / B24 (Modbus RTU)
ABB EQ B23 (direct, 65 A) and B24 (CT-connected) three-phase DIN meters fitted with the RS485 interface set to Modbus.
Also known as: B23, B24, EQ B23, EQ B24 - Power meter (network analyzer)
ABB M4M 20 / M4M 30 network analyzer
ABB M4M 20 and M4M 30 network analyzers, Modbus RTU and Modbus TCP versions, map v1.3O; items marked M4M 30 only are absent on M4M 20.
Also known as: M4M 20, M4M 30, M4M 20 Modbus, M4M 30 Modbus, M4M 20 Ethernet, M4M 30 Ethernet, M4M 20 I/O, M4M 30 I/O, M4M 2X, M4M 30-M, M4M 32 - Power meter
Accuenergy Acuvim II Series
Accuenergy Acuvim II series multifunction power meters (manual 1040E1303, V3.2.16 revised September 2026).
Also known as: Acuvim IIR, Acuvim IIW - Power meter
Accuenergy Acuvim-L Series
Accuenergy Acuvim-L series multifunction power and energy meters, user manual V4 (V 4.1.12, revised March 2026).
Also known as: Acuvim-CL, Acuvim-EL - Actuator / valve (pressure-independent control valve with energy metering)
Belimo Energy Valve DN 15-50 (Version 4) Modbus RTU / TCP
Belimo Energy Valve Version 4, DN 15-50 (EV..R2+(K)BAC, EV..R2+MID, EV..R3+BAC), per Energy Valve Modbus interface description en-gb 2023-08.
Also known as: EV..R2+BAC, EV..R2+KBAC, EV..R2+MID, EV..R3+BAC, Energy Valve 4 - Energy meter
Carlo Gavazzi EM100 / ET100 series (EM111, EM112, ET112)
Single-phase EM111, EM112 energy meters and ET112 bidirectional meter with the S1 (RS485 Modbus RTU) port, protocol version 2 revision 14.
Also known as: EM111, EM112, ET112, EM110, EM111-DIN, EM112-DIN, ET112-DIN, EM111DINAV81XS1X, EM112DINAV01XS1X, ET112DINAV01XS1X - Energy meter (energy analyzer)
Carlo Gavazzi EM210 (AV versions)
EM210 three-phase energy analyzers, AV input versions with the RS485 Modbus RTU option, protocol version 4 revision 3 (newest variables need firmware A.5/A.6).
Also known as: EM210, EM210-72D, EM210 AV - Energy meter (energy analyzer)
Carlo Gavazzi EM24-DIN (PFA, PFB and X models)
EM24-DIN three-phase energy analyzers, PFA/PFB (MID) and X models with the RS485 Modbus RTU port (IS option), protocol version 4 revision 0.
Also known as: EM24, EM24DIN, EM24DINAV93XISPFA, EM24DINAV93XISPFB, EM24DINAV93XISX, EM24DINAV53XISX, EM24DINAV23XISX, EM24 DIN AV9, EM24 DIN AV5 - Energy meter (energy analyzer)
Carlo Gavazzi EM24-DIN Ethernet (E1)
EM24-DIN energy analyzers with the E1 Ethernet (RJ45) Modbus TCP port, AV2 and AV5 inputs, X/PFA/PFB, protocol version 0 revision 1.3 (FW 1.0).
Also known as: EM24 E1, EM24_E1, EM24DINAV23XE1X, EM24DINAV23XE1PFA, EM24DINAV23XE1PFB, EM24DINAV53XE1X, EM24DINAV53XE1PFA, EM24DINAV53XE1PFB - Energy meter
Carlo Gavazzi EM24-IS (SFA and SFB models)
EM24-DIN AV2/AV5 IS SFA and SFB versions (identification codes 1696-1699), protocol revision 2.0.
Also known as: EM24DINAV23XISSFA, EM24DINAV53XISSFA, EM24DINAV23XISSFB, EM24DINAV53XISSFB, EM24 SFA, EM24 SFB - Energy meter
Carlo Gavazzi EM270 / EM280 dual three-phase energy meters with TCD current sensors
EM270 X (firmware r.b0+), EM270 W (r.C0+) and EM280 (r.E0+) on RS485 Modbus RTU, per communication protocol version 5 revision 1 (2018-01-29).
Also known as: EM270, EM280, EM270 X, EM270 W, EM27072DMV53X2SX, EM28072DMV53X2SX - Energy meter
Carlo Gavazzi EM271 dual three-phase energy meter with TCD current sensors
EM271 (firmware r.d0+, PF values from r.d2) on RS485 Modbus RTU, per communication protocol version 1 revision 2 (2018-01-29).
Also known as: EM271, EM27172DMV53X2SX, EM27172DMV63X2SX - Energy meter
Carlo Gavazzi EM300 / ET300 series (EM330, EM340, ET330, ET340)
EM330, EM331, EM340, EM341 energy meters and ET330/ET340 bidirectional meters with the S1 (RS485 Modbus RTU) port, protocol version 2 revision 17.
Also known as: EM330, EM340, ET330, ET340, EM331, EM341, EM330-DIN, EM340-DIN, ET340-DIN, EM340DINAV23XS1X, EM340DINAV23XS1PFA, EM340DINAV23XS1PFB - Energy meter
Carlo Gavazzi EM530 / EM540 three-phase energy meters (RS485 Modbus)
EM530 (CT-connected) and EM540 (direct-connected) with the S1 RS485 port, X and MID (PFA/PFB/PFC) versions, protocol document version 1.3.
Also known as: EM530, EM540, EM530DINAV53XS1X, EM530DINAV53XS1PFA, EM530DINAV53XS1PFB, EM530DINAV53XS1PFC, EM540DINAV23XS1X, EM540DINAV23XS1PFA, EM540DINAV23XS1PFB, EM540DINAV23XS1PFC, EM500 series - Power meter (power analyzer)
Carlo Gavazzi WM15 power analyzer
WM15-96 three-phase panel power analyzers with RS485 Modbus RTU (OS / OSPF / HOS versions), protocol version 1.2.
Also known as: WM15, WM15-96, WM1596AV53XOSX, WM1596AV53XOSPFB, WM1596AV53HOSX - Power meter (power analyzer)
Carlo Gavazzi WM20 / WM30 / WM40 power analyzers
WM20, WM30 and WM40 modular power analyzers with an RS485 (or Ethernet) Modbus module, protocol internal version rev. 4.0 (2018-03-28); WM30 = firmware letter X, WM40 = Y, WM20 = Z.
Also known as: WM20, WM30, WM40, WM20-96, WM30-96, WM40-96 - Power meter (power analyzer)
Carlo Gavazzi WM50 power analyzer with TCD branch channels
WM50 base unit (firmware X0, i.e. all A and B versions) with an MC485232 or MCETH communication module, plus TCD branch channels, per communication protocol user version rev. 1.0.0 (2017-09-27).
Also known as: WM50, WM50AV5, WM50-96, WM50 AV5 - Power meter
DENT Instruments PowerScout 3037 Power Meter
PowerScout 3037 serial (RS-485) and Ethernet meters in Modbus mode, per the November 9, 2017 PS3037 Operator's Guide.
Also known as: PS3037, PowerScout 3037 Ethernet, PS3037-E, PowerScout 3037 Serial - Energy meter
Eastron SDM120CT-40mA
Eastron SDM120CT-40mA single-phase CT-connected DIN-rail meter with RS485 Modbus RTU, user manual V1.0 (2026-07-16).
Also known as: SDM120CT-M-40mA, SDM120CT-M 40mA - Energy meter
Eastron SDM230-DI
Eastron SDM230-DI single-phase 100 A DIN-rail meter with two digital inputs and RS485 Modbus RTU, manual 2025 V1.00.
Also known as: SDM230 DI - Energy meter
Eastron SDM630-DI
Eastron SDM630-DI three-phase DIN-rail meter (100 A direct, two digital inputs, RS485 Modbus RTU), manual V1.02.
Also known as: SDM630 DI - Energy meter
Eastron SDM630MCT
Eastron SDM630MCT three-phase CT-connected DIN-rail meter with RS485 Modbus RTU, protocol implementation V1.7.
Also known as: SDM630 MCT - Power meter
Eaton IQ 250 / IQ 260 Electronic Power Meter
Eaton IQ 250 and IQ 260 meters (including the L logging versions), Modbus map Appendix B of IB02601006E.
Also known as: IQ 250, IQ 260, IQ 250L, IQ 260L, IQ250, IQ260 - Power meter
Eaton Power Xpert Meter 1000 Series (PXM 1000/1100/1200/1300)
Eaton PXM 1000 series meters on the built-in RS-485 Modbus RTU port, per user manual MN150009EN (October 2018).
Also known as: PXM 1000, PXM 1100, PXM 1200, PXM 1300, PXM1000, PXM1100, PXM1200, PXM1300, Power Xpert Meter 1000 - Energy meter
Finder 7M.38 three-phase energy meter (Modbus RS485)
Finder 7M.38 three-phase meters with serial RS485 communication (7M.38.8.400.XXXX serial versions); the 7M.24 single-phase meter in the same document is not covered.
Also known as: 7M.38, 7M38, 7M.38.8.400.0212, 7M3884000212, Finder 7M38 Modbus - Energy meter
inepro Metering PRO380-Mod three-phase energy meter
PRO380-Mod and PRO380-Mod CT (RS485 Modbus RTU), current register map from PRO380 user manual version 2.18-8.
Also known as: PRO380 Mod, PRO380-Mod CT, PRO380-MOD, inepro PRO380, PRO380 MID - Power meter (power analyser)
Janitza UMG 104 power analyser (RS-485 Modbus RTU)
UMG 104 DIN-rail power analyser, firmware 1.268, per address list 1.041.006.1.e (01/2023).
Also known as: UMG104, UMG 104, Janitza UMG104 - Power meter (power quality analyser)
Janitza UMG 509-PRO power quality analyser (Modbus RTU / Modbus TCP)
UMG 509-PRO per Modbus address list 1.059.004.2.n (06/2024).
Also known as: UMG509-PRO, UMG 509PRO, UMG509PRO, Janitza UMG 509 - Power meter (power quality analyser)
Janitza UMG 512-PRO power quality analyser (Modbus RTU / Modbus TCP)
UMG 512-PRO power quality analyser, per address list 1.054.016.3.k (08/2023).
Also known as: UMG512-PRO, UMG 512, UMG512, UMG 512 PRO, Janitza UMG512-PRO - Power meter (power quality analyser)
Janitza UMG 604-PRO power analyser (Modbus RTU / Modbus TCP)
UMG 604-PRO from firmware release 5.028, per address list 1.033.034.e (08/2023).
Also known as: UMG604-PRO, UMG 604PRO, UMG604PRO, UMG 604-EP PRO, Janitza UMG 604 - Power meter (power quality analyser)
Janitza UMG 605-PRO power quality analyser (Modbus RTU / Modbus TCP)
UMG 605-PRO from firmware release 5.028, per address list 1.038.009.7.h (09/2022).
Also known as: UMG605-PRO, UMG 605PRO, UMG605PRO, Janitza UMG 605 - Power meter (energy analyser)
Janitza UMG 96-S2 energy analyser (serial Modbus)
UMG 96-S2 energy analyser, per address list 2.062.026.1.b (10/2019).
Also known as: UMG96-S2, UMG 96 S2, UMG96S2, Janitza UMG96-S2 - Power meter (power analyser)
Janitza UMG 96RM power analyser (basic device, RS-485 Modbus RTU)
UMG 96RM basic device from firmware release 1.14, per address list 1.040.034.t; the same list covers the shared registers of the -P, -CBM and -PN extensions. Other UMG 96RM variants (e.g. the Ethernet -E / -EL) are not covered by this list.
Also known as: UMG96RM, UMG 96 RM, UMG 96RM-P, UMG 96RM-CBM, UMG 96RM-PN, Janitza UMG96RM - Power meter (power analyser)
Janitza UMG 96RM-E power analyser (Ethernet, Modbus TCP / RTU)
UMG 96RM-E from firmware 3.01 / hardware release 104, per address list 1.040.085.8.n (06/2024).
Also known as: UMG96RM-E, UMG 96 RM-E, UMG96RME, Janitza UMG96RM-E - Power meter (power analyzer)
Lovato Electric DMG7000 / DMG7500 / DMG8000 / DMG9000 power analyzers
Lovato DMG7000, DMG7500, DMG8000 and DMG9000 panel power analyzers on any Modbus port (RTU, ASCII or TCP); DMG9000-only rows are marked.
Also known as: DMG7000, DMG7500, DMG8000, DMG9000, DMG 7000, DMG 8000, DMG 9000, Lovato DMG - Energy meter
Siemens SENTRON PAC2200
SENTRON 7KM PAC2200 Modbus TCP and Modbus RTU variants (5 A and 65 A), per Equipment Manual 12/2022.
Also known as: 7KM PAC2200 - Power meter
Siemens SENTRON PAC3200
SENTRON PAC3200 (7KM2111/7KM2112), Ethernet port and optional PAC RS485 expansion module, per manual edition 02/2008.
Also known as: 7KM2112-0BA00-2AA0, 7KM2112-0BA00-3AA0, 7KM2111-1BA00-3AA0, 7KM PAC3200
Power & energy meters: default communication settings
Factory defaults as the manufacturer documents them. Change one setting at a time on site and write down what you changed. Word order applies to 32-bit values; the addressing column says how the manufacturer prints register numbers (every map on this site also gives the 0-based wire address).