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  2. Circutor
  3. CVM-MINI

Circutor CVM-MINI Modbus register map

Also covers CVM-MINI-ITF-RS485-C2, CVM-MINI-MC-ITF-RS485-C2, CVM-MINI-HAR

DIN rail power analyser with RS-485 (Modbus RTU)

  • Official
  • 218 registers
  • Modbus 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 RTU
Unit ID
1
Serial
9600 8N1 · 9600 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
218 holding registers
Groups
5
Revision
2 · 2026-10-17
Added
()
File
maps/circutor/cvm-mini.mbmap.json · 34 KB · history
SHA-256
952043404582d8b5160eb38e3c516b58a4d9a593488e939b01dbba8b335bd3c0
Manufacturer
circutor.com

Sources and notes

Source: Circutor, "Power analyzer CVM-MINI series instruction manual", M98174001-03-19A

  • Every value is a 32-bit integer in two registers, read with FC03 or FC04.
  • Harmonics (0x01F4-0x0307) are on the HAR model only.
  • The manual gives watts (w) as the unit of the reactive and apparent powers; they are var and VA here.
AreaAddressNameTypeAccessUnitScaleDescription
HR 0 int32 ABCD R V ×0.1
HR 96 int32 ABCD R V ×0.1
HR 192 int32 ABCD R V ×0.1
HR 2 int32 ABCD R A ×0.001
HR 98 int32 ABCD R A ×0.001
HR 194 int32 ABCD R A ×0.001
HR 4 int32 ABCD R W
HR 100 int32 ABCD R W
HR 196 int32 ABCD R W
HR 6 int32 ABCD R var
HR 102 int32 ABCD R var
HR 198 int32 ABCD R var
HR 74 int32 ABCD R VA
HR 170 int32 ABCD R VA
HR 266 int32 ABCD R VA
HR 8 int32 ABCD R ×0.01
HR 104 int32 ABCD R ×0.01
HR 200 int32 ABCD R ×0.01
HR 10 int32 ABCD R V ×0.1
HR 106 int32 ABCD R V ×0.1
HR 202 int32 ABCD R V ×0.1
HR 12 int32 ABCD R A ×0.001
HR 108 int32 ABCD R A ×0.001
HR 204 int32 ABCD R A ×0.001
HR 14 int32 ABCD R W
HR 110 int32 ABCD R W
HR 206 int32 ABCD R W
HR 16 int32 ABCD R var
HR 112 int32 ABCD R var
HR 208 int32 ABCD R var
HR 76 int32 ABCD R VA
HR 172 int32 ABCD R VA
HR 268 int32 ABCD R VA
HR 18 int32 ABCD R ×0.01
HR 114 int32 ABCD R ×0.01
HR 210 int32 ABCD R ×0.01
HR 20 int32 ABCD R V ×0.1
HR 116 int32 ABCD R V ×0.1
HR 212 int32 ABCD R V ×0.1
HR 22 int32 ABCD R A ×0.001
HR 118 int32 ABCD R A ×0.001
HR 214 int32 ABCD R A ×0.001
HR 24 int32 ABCD R W
HR 120 int32 ABCD R W
HR 216 int32 ABCD R W
HR 26 int32 ABCD R var
HR 122 int32 ABCD R var
HR 218 int32 ABCD R var
HR 78 int32 ABCD R VA
HR 174 int32 ABCD R VA
HR 270 int32 ABCD R VA
HR 28 int32 ABCD R ×0.01
HR 124 int32 ABCD R ×0.01
HR 220 int32 ABCD R ×0.01
HR 80 int32 ABCD R °C ×0.1
HR 176 int32 ABCD R °C ×0.1
HR 272 int32 ABCD R °C ×0.1
HR 30 int32 ABCD R W
HR 126 int32 ABCD R W
HR 222 int32 ABCD R W
HR 32 int32 ABCD R var
HR 128 int32 ABCD R var
HR 224 int32 ABCD R var
HR 34 int32 ABCD R var
HR 130 int32 ABCD R var
HR 226 int32 ABCD R var
HR 36 int32 ABCD R ×0.01
HR 132 int32 ABCD R ×0.01
HR 228 int32 ABCD R ×0.01
HR 38 int32 ABCD R ×0.01
HR 134 int32 ABCD R ×0.01
HR 230 int32 ABCD R ×0.01
HR 40 int32 ABCD R Hz ×0.1
HR 136 int32 ABCD R Hz ×0.1
HR 232 int32 ABCD R Hz ×0.1
HR 42 int32 ABCD R V ×0.1
HR 138 int32 ABCD R V ×0.1
HR 234 int32 ABCD R V ×0.1
HR 44 int32 ABCD R V ×0.1
HR 140 int32 ABCD R V ×0.1
HR 236 int32 ABCD R V ×0.1
HR 46 int32 ABCD R V ×0.1
HR 142 int32 ABCD R V ×0.1
HR 238 int32 ABCD R V ×0.1
HR 48 int32 ABCD R % ×0.1
HR 144 int32 ABCD R % ×0.1
HR 240 int32 ABCD R % ×0.1
HR 50 int32 ABCD R % ×0.1
HR 146 int32 ABCD R % ×0.1
HR 242 int32 ABCD R % ×0.1
HR 52 int32 ABCD R % ×0.1
HR 148 int32 ABCD R % ×0.1
HR 244 int32 ABCD R % ×0.1
HR 54 int32 ABCD R % ×0.1
HR 150 int32 ABCD R % ×0.1
HR 246 int32 ABCD R % ×0.1
HR 56 int32 ABCD R % ×0.1
HR 152 int32 ABCD R % ×0.1
HR 248 int32 ABCD R % ×0.1
HR 58 int32 ABCD R % ×0.1

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