Connection and addressing notes
- Protocol
- Modbus
- Function codes
- 0x04 read input
- Interface
- RS-485 serial
- Default baud rate
- 9600 bps
- Data bits
- 8
- Stop bits
- 1
- Parity
- none
- Byte order
- big endian
- Register length
- 2 bytes
- Access
- read only
Registers in the map: 25. function 4 (input registers). byte order big-endian. data types: dword, word.
| MODBUS offset | Description | Units | Data type | Scale |
|---|---|---|---|---|
| 0 | State bits | word | ||
| 1 | AB line voltage | V | word | ×0.1 |
| 2 | BC line voltage | V | word | ×0.1 |
| 3 | CA line voltage | V | word | ×0.1 |
| 4 | A phase current | A | word | ×0.1 |
| 5 | B phase current | A | word | ×0.1 |
| 6 | C phase current | A | word | ×0.1 |
| 7 | PVI voltage | V | word | ×0.1 |
| 8 | PVI electric current | A | word | ×0.1 |
| 9 | PV2 voltage | V | word | ×0.1 |
| 10 | PV2 electric current | A | word | ×0.1 |
| 11 | PV3 voltage | V | word | ×0.1 |
| 12 | PV3 electric current | A | word | ×0.1 |
| 13 | Grid frequency | Hz | word | ×0.1 |
| 14 | Module temperature | deg C | word | ×0.1 |
| 15 | Inverter housing temperature | deg C | word | ×0.1 |
| 16 | Generation day | W | dword | |
| 18 | Current generation power | W | dword | |
| 20 | The cumulative generation time of | s | dword | |
| 22 | Current cumulative power generation | W | dword | |
| 24 | Error bits 1 | word | ||
| 25 | Error bits 2 | word | ||
| 26 | Error bits 3 | word | ||
| 27 | Error bits 4 | word | ||
| 28 | Error bits 5 | word |