Connection and addressing notes
- Protocol
- Modbus
- Function codes
- 04 read input registers
- Register addressing
- addresses listed in hex and decimal, used directly as 0-based offsets
- Data format
- 16-bit values (2 bytes)
- Scaling
- scale ratio given per row
Registers in the map: 30. function 4 (input registers). byte order big-endian. data types: word.
| MODBUS offset | Description | Units | Data type | Scale |
|---|---|---|---|---|
| 1 | Master version | word | ×0.01 | |
| 0 | Ambient temperature | deg C | word | ×0.1 |
| 2 | Year, month | ' | word | |
| 3 | Date, time | word | ||
| 4 | Minutes, seconds | word | ||
| 5 | Battery status | word | ||
| 6 | Battery voltage | V | word | ×0.1 |
| 7 | Battery current | A | word | ×0.1 |
| 8 | Input frequency | Hz | word | ×0.01 |
| 9 | Input voltage | V | word | ×0.1 |
| 10 | Input appa.p A | VA | word | |
| 11 | Input acti.p | W | word | |
| 12 | Inverter frequency | Hz | word | ×0.01 |
| 13 | Inverter voltage | V | word | ×0.1 |
| 14 | Inverter current | A | word | ×0.1 |
| 15 | Inverter acti.p | W | word | |
| 16 | Pv voltage | V | word | ×0.1 |
| 17 | Pv current | A | word | ×0.1 |
| 18 | Pv power | W | word | |
| 19 | Bus voltage | V | word | ×0.1 |
| 20 | System geneeraating capacity low | kWh | word | ×0.01 |
| 21 | System generating capacity high | KSH | word | |
| 22 | System total generating capacity low | KSH | word | |
| 23 | System total generating capacity high | KSH | word | |
| 24 | Load voltage | V | word | ×0.1 |
| 25 | Load current | A | word | ×0.1 |
| 26 | Load acti.p | W | word | |
| 27 | Load appa.p | VA | word | |
| 28 | Load percentage | % | word | ×0.1 |
| 33 | Soc | % | word |