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  3. Acuvim II

Accuenergy Acuvim II Modbus register map

Also covers Acuvim IIR, Acuvim IIE, Acuvim IIW, Acuvim II V3

Acuvim II series power and energy meters (V3 firmware map), RS485 Modbus RTU and Modbus TCP with the Ethernet module

  • Official
  • 1,400 registers
  • Modbus TCP and RTU
  • Revision 2 · 2026-10-17

Official: Written from the manufacturer's documentation, but not tested on a device yet. Check the map against the manufacturer's documentation before you write to a live device. Tested it? Report a test.

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Communication

Protocol
Modbus TCP and RTU
Unit ID
1
TCP port
502
Serial
19200 8N1 · 19200 baud, 8 data bits, none parity, 1 stop bit
Byte / word order
ABCD · bytes big-endian, words high first
Addresses
0-based

Connection values are defaults: the device may be configured differently.

Map

Registers
1392 holding registers, 8 coils
Groups
20
Revision
2 · 2026-10-17
Added
()
File
maps/accuenergy/acuvim-ii.mbmap.json · 256 KB · history
SHA-256
0bf44743b03ffc4b41338128cecd664692624c9e30f113baf6e3545ddb2f5f7d
Manufacturer
accuenergy.com

Sources and notes

Source: Accuenergy, "Acuvim II V3 Modbus map" v1.10 (2026-09-25)

  • Acuvim II, IIR, IIE and IIW meters with the V3 Modbus map. FC03 reads, FC10 writes; FC01/FC05 for the relay outputs.
  • Values are big endian, high word first; floats are IEEE 754 and given in primary units (V, A, kW, kvar, kVA).
  • Energies are counts of 0.1 kWh (kvarh, kVAh) with Energy display mode (0x1019) at Primary, the default; in Secondary mode they are counts of 0.001 kWh.
  • Some I/O, analog and alarm registers need the matching AXM-IO extension module.
  • The integer real-time copies, the high-speed (100 ms, 20 ms) blocks, harmonic amplitudes and phases, time stamps of max/min values, alarm and SOE records, data logs, the TOU program and holidays, waveform capture and the Class S aggregations are in the Modbus map and left out here.
AreaAddressNameTypeAccessUnitScaleDescription
HR 4093 uint16 RW
HR 4094 uint16 RW
HR 4095 uint16 RW
HR 4096 uint16 RW Default: 0
HR 4097 uint16 RW Default: 1
HR 4098 uint16 RW Default: 19200
HR 4099 uint16 RW
HR 4100 uint16 RW
HR 4101 uint16 RW Default: 0
HR 4102 uint16 RW Default: 220
HR 4103 uint16 RW Default: 220
HR 4104 uint16 RW Default: 5 (5A Model) 1 (mV Model)
HR 4105 uint16 RW
HR 4106 uint16 RW Default: 5000
HR 4107 uint16 RW Default: 5000
HR 4108 uint16 RW Default: 1
HR 4109 uint16 RW Default: 15
HR 4110 uint16 RW
HR 4111 uint16 RW
HR 4112 uint16 RW
HR 4113 uint16 RW
HR 4114 uint16 RW
HR 4115 uint16 RW
HR 4116 uint16 RW
HR 4117 uint16 RW
HR 4118 uint16 RW
HR 4119 uint16 RW
HR 4120 uint16 RW
HR 4121 uint16 RW
HR 4122 uint16 RW
HR 4123 uint16 RW
HR 4124 uint16 RW
HR 4125 uint16 RW
HR 4126 uint16 RW Bit0: First Communication Parameters Bit1: Second Communication Parameters Bit2: Clear Run Time Bit3: DI Pulse Count Bit4: TOU; Default: 0
HR 4127 uint16 R
HR 4128 uint16 RW Default: 1
HR 4129 uint16 RW
HR 4130 uint16 RW Default: 1
HR 4131 uint16 RW
HR 4134 uint16 RW
HR 4135 uint16 RW
HR 4140 uint16 RW Default: 1
HR 4141 uint16 RW
HR 4142 uint16 R Bit0: New Alarm Bit1: New SOE Record
HR 4143 uint16 RW
HR 4144 uint16 RW
HR 4145 uint16 RW Default: 1
HR 4146 uint16 R
HR 4147 uint16 R
HR 4148 uint16 RW
HR 4149 uint16 R
HR 4150 uint16 R Bit0: AXM-IO1-1 Bit1: AXM-IO1-2 Bit2: AXM-IO2-1 Bit3: AXM-IO2-2 Bit4: AXM-IO3-1 Bit5: AXM-IO3-2 0: Disconnected 1:Connected
HR 4152 uint16 R
HR 4153 uint16 RW
HR 4154 uint16 RW
HR 4155 uint16 RW
HR 4156 uint16 RW
HR 4157 uint16 RW
HR 4158 uint16 RW
HR 4340 uint16 RW
HR 4341 uint16 RW
HR 4342 uint16 RW
HR 4343 uint16 RW
HR 4344 uint16 RW Default: 1
HR 4345 uint16 RW Default: 4
HR 5178 uint16 RW
HR 5179 uint16 R
HR 5262 uint16 RW Default: 1
HR 16384 float32 ABCD R Hz
HR 16386 float32 ABCD R V
HR 16388 float32 ABCD R V
HR 16390 float32 ABCD R V
HR 16392 float32 ABCD R V
HR 16394 float32 ABCD R V
HR 16396 float32 ABCD R V
HR 16398 float32 ABCD R V
HR 16400 float32 ABCD R V
HR 16402 float32 ABCD R A
HR 16404 float32 ABCD R A
HR 16406 float32 ABCD R A
HR 16408 float32 ABCD R A
HR 16410 float32 ABCD R A
HR 16412 float32 ABCD R kW ×0.001
HR 16414 float32 ABCD R kW ×0.001
HR 16416 float32 ABCD R kW ×0.001
HR 16418 float32 ABCD R kW ×0.001
HR 16420 float32 ABCD R kvar ×0.001
HR 16422 float32 ABCD R kvar ×0.001
HR 16424 float32 ABCD R kvar ×0.001
HR 16426 float32 ABCD R kvar ×0.001
HR 16428 float32 ABCD R kVA ×0.001
HR 16430 float32 ABCD R kVA ×0.001
HR 16432 float32 ABCD R kVA ×0.001
HR 16434 float32 ABCD R kVA ×0.001
HR 16436 float32 ABCD R
HR 16438 float32 ABCD R
HR 16440 float32 ABCD R
HR 16442 float32 ABCD R
HR 16444 float32 ABCD R % Value: U=Rx*100%
HR 16446 float32 ABCD R % Value: I=Rx*100%

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