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Finder Modbus register maps

Updated 24 October 2026

1 Finder model, 72 registers in all, each re-typed from Finder’s own free documentation and checked against it.

• 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.

  72 registers · 13 writable · RTU
  Also known as: 7M.38, 7M38, 7M.38.8.400.0212, 7M3884000212, Finder 7M38 Modbus

Finder: 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).