Finder · Energy meter
7M.38 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 |
|---|---|---|---|---|---|---|
| 2500 | 2 | Voltage L1 | Float32 | V | 1 | R |
| 2502 | 2 | Voltage L2 | Float32 | V | 1 | R |
| 2504 | 2 | Voltage L3 | Float32 | V | 1 | R |
| 2506 | 2 | Average voltage L-N | Float32 | V | 1 | R |
| 2508 | 2 | Voltage L1-L2 | Float32 | V | 1 | R |
| 2510 | 2 | Voltage L2-L3 | Float32 | V | 1 | R |
| 2512 | 2 | Voltage L3-L1 | Float32 | V | 1 | R |
| 2514 | 2 | Average voltage L-L | Float32 | V | 1 | R |
| 2516 | 2 | Current L1 | Float32 | A | 1 | R |
| 2518 | 2 | Current L2 | Float32 | A | 1 | R |
| 2520 | 2 | Current L3 | Float32 | A | 1 | R |
| 2522 | 2 | Sum of currents | Float32 | A | 1 | R |
| 2528 | 2 | Average current | Float32 | A | 1 | R |
| 2530 | 2 | Active power L1 | Float32 | W | 1 | R |
| 2532 | 2 | Active power L2 | Float32 | W | 1 | R |
| 2534 | 2 | Active power L3 | Float32 | W | 1 | R |
| 2536 | 2 | Active power, total | Float32 | W | 1 | R |
| 2538 | 2 | Reactive power L1 | Float32 | var | 1 | R |
| 2540 | 2 | Reactive power L2 | Float32 | var | 1 | R |
| 2542 | 2 | Reactive power L3 | Float32 | var | 1 | R |
| 2544 | 2 | Reactive power, total | Float32 | var | 1 | R |
| 2546 | 2 | Apparent power L1 | Float32 | VA | 1 | R |
| 2548 | 2 | Apparent power L2 | Float32 | VA | 1 | R |
| 2550 | 2 | Apparent power L3 | Float32 | VA | 1 | R |
| 2552 | 2 | Apparent power, total | Float32 | VA | 1 | R |
| 2554 | 2 | Power factor L1 | Float32 | - | 1 | R |
| 2556 | 2 | Power factor L2 | Float32 | - | 1 | R |
| 2558 | 2 | Power factor L3 | Float32 | - | 1 | R |
| 2560 | 2 | Power factor, total | Float32 | - | 1 | R |
| 2576 | 2 | Power angle, total | Float32 | ° | 1 | R |
| 2584 | 2 | Frequency | Float32 | Hz | 1 | R |
| 2588 | 2 | Current THD L1 | Float32 | % | 1 | R |
| 2590 | 2 | Current THD L2 | Float32 | % | 1 | R |
| 2592 | 2 | Current THD L3 | Float32 | % | 1 | R |
| 2594 | 2 | Voltage THD L1 | Float32 | % | 1 | R |
| 2596 | 2 | Voltage THD L2 | Float32 | % | 1 | R |
| 2598 | 2 | Voltage THD L3 | Float32 | % | 1 | R |
| 2752 | 2 | Active energy imported | Float32 | kWh | 0.001 | R |
| 2754 | 2 | Reactive energy imported | Float32 | kVArh | 0.001 | R |
| 2756 | 2 | Active energy exported | Float32 | kWh | 0.001 | R |
| 2758 | 2 | Reactive energy exported | 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). Measurements and energy counters are IEEE-754 Float32 values read with function code 04, high word first. Energy is transmitted in Wh and scaled to kWh here. Configuration registers are holding registers; their addresses are the Modicom 4xxxx numbers minus 40000.