Finder · Energy meter
7M.24 Modbus register map
Default configuration
- Protocol
- RS485
- Port
- 502
- Unit ID
- 33
- Addressing
- 0-based
- Byte order
- Big endian
- Word order
- High word first
- Baud rate
- 19200
- Parity
- None
- Data bits
- 8
- Stop bits
- 2
This device has an RS-485 interface. Reach it through a Modbus RTU-to-TCP gateway, configured with the factory serial settings above.
Register map
| Address | Count | Name | Type | Unit | Scale | Access |
|---|---|---|---|---|---|---|
| 2498 | 2 | Frequency | Float32 | Hz | 1 | R |
| 2500 | 2 | Voltage L1 | Float32 | V | 1 | R |
| 2516 | 2 | Current L1 | Float32 | A | 1 | R |
| 2530 | 2 | Active power L1 | Float32 | W | 1 | R |
| 2536 | 2 | Active power, total | Float32 | W | 1 | R |
| 2538 | 2 | Reactive power L1 | Float32 | var | 1 | R |
| 2544 | 2 | Reactive power, total | Float32 | var | 1 | R |
| 2546 | 2 | Apparent power L1 | Float32 | VA | 1 | R |
| 2552 | 2 | Apparent power, total | Float32 | VA | 1 | R |
| 2554 | 2 | Power factor L1 | Float32 | - | 1 | R |
| 2560 | 2 | Power factor, total | Float32 | - | 1 | R |
| 2562 | 2 | Power factor L1 (capacitive/inductive) | Float32 | - | 1 | R |
| 2568 | 2 | Power factor, total (capacitive/inductive) | Float32 | - | 1 | R |
| 2570 | 2 | Phase angle between U1 and I1 | Float32 | ° | 1 | R |
| 2576 | 2 | Power angle, total | Float32 | ° | 1 | R |
| 2588 | 2 | Current THD L1 | Float32 | % | 1 | R |
| 2594 | 2 | Voltage THD L1 | Float32 | % | 1 | R |
| 2638 | 2 | Energy counter n1 (second copy) Protocol document: energy counter n1 in Wh. | Float32 | kWh | 0.001 | R |
| 2640 | 2 | Energy counter n2 (second copy) Protocol document: energy counter n2 in varh. | Float32 | kvarh | 0.001 | R |
| 2658 | 2 | Internal temperature | Float32 | °C | 1 | R |
| 2750 | 2 | Active tariff | Float32 | - | 1 | R |
| 2752 | 2 | Energy counter n1 Protocol document: energy counter n1 in Wh. Counters n1/n3 are active energy and n2/n4 reactive energy; conventionally n1/n2 import and n3/n4 export. | Float32 | kWh | 0.001 | R |
| 2754 | 2 | Energy counter n2 Protocol document: energy counter n2 in varh. | Float32 | kvarh | 0.001 | R |
| 2756 | 2 | Energy counter n3 Protocol document: energy counter n3 in Wh. | Float32 | kWh | 0.001 | R |
| 2758 | 2 | Energy counter n4 Protocol document: energy counter n4 in varh. | Float32 | kvarh | 0.001 | R |
Notes
RS-485 device: reach it through a Modbus RTU-to-TCP gateway using the factory serial settings above (address 33, 19200 bps, 8N2). Sources: Finder 'Modbus communication protocol 7M24 - 7M38' v2 (30.06.2021) for the register table and Finder 'Benutzerhandbuch 7M' for the factory defaults. The 'IEEE 754' measurement bank is used, so all values are 32-bit floats read with function code 04; the protocol document's 3xxxxx register numbers map to wire address = number - 30000 and the 4xxxxx settings to number - 40000. Energy counters are transmitted in Wh/varh and scaled to kWh/kvarh here. This is the single-phase 7M.24; the three-phase 7M.38 has its own seed.