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Accuenergy · Power analyzer

Acuvim 3 Modbus register map

Default configuration

Protocol
Modbus TCP
Port
502
Unit ID
1
Addressing
0-based
Byte order
Big endian
Word order
High word first

Register map

AddressCountNameTypeUnitScaleAccess
82102
System frequency (10-cycle high-speed)
Float32Hz1R
82122
Phase A line-to-neutral voltage
Float32V1R
82142
Phase B line-to-neutral voltage
Float32V1R
82162
Phase C line-to-neutral voltage
Float32V1R
82182
Average line-to-neutral voltage
Float32V1R
82202
Line-to-line voltage AB
Float32V1R
82222
Line-to-line voltage BC
Float32V1R
82242
Line-to-line voltage CA
Float32V1R
82262
Average line-to-line voltage
Float32V1R
82282
Phase A current
Float32A1R
82302
Phase B current
Float32A1R
82322
Phase C current
Float32A1R
82342
Neutral current
Float32A1R
82362
Average current
Float32A1R
82382
Phase A active power
Float32kW1R
82402
Phase B active power
Float32kW1R
82422
Phase C active power
Float32kW1R
82442
System active power
Float32kW1R
82462
Phase A reactive power
Float32kvar1R
82482
Phase B reactive power
Float32kvar1R
82502
Phase C reactive power
Float32kvar1R
82522
System reactive power
Float32kvar1R
82542
Phase A apparent power
Float32kVA1R
82562
Phase B apparent power
Float32kVA1R
82582
Phase C apparent power
Float32kVA1R
82602
System apparent power
Float32kVA1R
82622
Phase A load nature (L/C/R)
Float32-1R
82642
Phase B load nature (L/C/R)
Float32-1R
82662
Phase C load nature (L/C/R)
Float32-1R
82682
System load nature (L/C/R)
Float32-1R
82702
Phase A power factor
Float32-1R
82722
Phase B power factor
Float32-1R
82742
Phase C power factor
Float32-1R
82762
System power factor
Float32-1R
82782
Phase A leading power factor
Float32-1R
82802
Phase B leading power factor
Float32-1R
82822
Phase C leading power factor
Float32-1R
82842
System leading power factor
Float32-1R
82862
Phase A lagging power factor
Float32-1R
82882
Phase B lagging power factor
Float32-1R
82902
Phase C lagging power factor
Float32-1R
82922
System lagging power factor
Float32-1R
245762
Phase A fundamental line-to-neutral voltage
Float32V1R
245782
Phase B fundamental line-to-neutral voltage
Float32V1R
245802
Phase C fundamental line-to-neutral voltage
Float32V1R
245822
Average fundamental line-to-neutral voltage
Float32V1R
245842
Fundamental line-to-line voltage AB
Float32V1R
245862
Fundamental line-to-line voltage BC
Float32V1R
245882
Fundamental line-to-line voltage CA
Float32V1R
245902
Average fundamental line-to-line voltage
Float32V1R
245922
Phase A fundamental line current
Float32A1R
245942
Phase B fundamental line current
Float32A1R
245962
Phase C fundamental line current
Float32A1R
245982
Neutral fundamental line current
Float32A1R
246002
Average fundamental line current
Float32A1R
246022
Phase A fundamental active power
Float32kW1R
246042
Phase B fundamental active power
Float32kW1R
246062
Phase C fundamental active power
Float32kW1R
246082
System fundamental active power
Float32kW1R
246102
Phase A fundamental reactive power
Float32kvar1R
246122
Phase B fundamental reactive power
Float32kvar1R
246142
Phase C fundamental reactive power
Float32kvar1R
246162
System fundamental reactive power
Float32kvar1R
246182
Phase A fundamental apparent power
Float32kVA1R
246202
Phase B fundamental apparent power
Float32kVA1R
246222
Phase C fundamental apparent power
Float32kVA1R
246242
System fundamental apparent power
Float32kVA1R
246262
Phase A displacement power factor
Float32-1R
246282
Phase B displacement power factor
Float32-1R
246302
Phase C displacement power factor
Float32-1R
246322
System displacement power factor
Float32-1R
258564
Phase A accumulative active energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kWh1R
258604
Phase B accumulative active energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kWh1R
258644
Phase C accumulative active energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kWh1R
258684
System accumulative active energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kWh1R
258724
Phase A accumulative reactive energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kvarh1R
258764
Phase B accumulative reactive energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kvarh1R
258804
Phase C accumulative reactive energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kvarh1R
258844
System accumulative reactive energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kvarh1R
258884
Phase A accumulative apparent energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kVAh1R
258924
Phase B accumulative apparent energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kVAh1R
258964
Phase C accumulative apparent energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kVAh1R
259004
System accumulative apparent energy, quad 1
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kVAh1R
259164
System accumulative active energy, quad 2
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kWh1R
259324
System accumulative reactive energy, quad 2
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kvarh1R
259484
System accumulative apparent energy, quad 2
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kVAh1R
259644
System accumulative active energy, quad 3
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kWh1R
259804
System accumulative reactive energy, quad 3
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kvarh1R
259964
System accumulative apparent energy, quad 3
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kVAh1R
260124
System accumulative active energy, quad 4
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kWh1R
260284
System accumulative reactive energy, quad 4
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kvarh1R
260444
System accumulative apparent energy, quad 4
64-bit IEEE double: four registers (IEEE-754 double, which the vendor map types 'Double').
Float64kVAh1R

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Notes

Source: Accuenergy 'Acuvim 3 User Modbus Address Table' v1.00 (the vendor's spreadsheet at https://www.accuenergy.com/wp-content/uploads/Acuvim-3-User-Modbus-Address-Table-v1.00.xlsx ), sheets 'HS', 'Fundamental' and 'Energy'. Every row there is marked '03H Read', i.e. a holding register read. The map prints both the hex and the decimal form of each address, and they agree (0x2012 = 8210), so the addresses below are the wire addresses. Communication defaults are from the Acuvim 3 User Manual v1.0.13 (August 2026), section 7.2 'Network': Modbus TCP port 502 and Modbus TCP slave address 1, which is why this seed is modelled over TCP. The same manual states the RS-485 defaults for the RTU variant: slave address 1, baud rate 115200, no parity, 8 data bits, 1 stop bit (parity, data bits and stop bits are fixed and cannot be changed). Caveat: the vendor map gives the register type and width (Float = 2 registers, Double = 4 registers) but does not state a register word order, so the file keeps the default HighFirst. Deliberate omissions: the 10 s and high-speed timestamp/valid-flag/event-flag rows, the 'Meter Sys Config' and 'Meter IO Config' blocks (nominal values, transformer ratios, DI/DO behaviour), the demand and max/min groups, the TOU groups, the PQ event, alarm, IEEE 519 and EN 50160 report groups, and the per-phase energy rows for quadrants 2 to 4 (this seed carries the full quadrant-1 set plus the system totals of quadrants 2 to 4).