Connection and addressing notes
- Protocol
- Modbus
- Access
- read only
- Function codes
- 03 read holding, 04 read input
- Register addressing
- Modicom addresses (300001...) with physical protocol addresses (0000h...)
- Physical address
- Modicom address minus 300001, 0-based
- Data format
- INT32 over two registers, INT16 or UINT16
- Undefined registers
- reading an unlisted address returns an illegal data address exception
Registers in the map: 20. function 4 (input registers). byte order big-endian. data types: integer, smallint, word.
| MODBUS offset | Description | Units | Data type | Scale |
|---|---|---|---|---|
| 770 | Version code | word | ||
| 0 | VL-N | V | integer | ×0.1 |
| 2 | A | A | integer | ×0.001 |
| 4 | W | W | integer | ×0.1 |
| 6 | WA | VA | integer | ×0.1 |
| 8 | Var | var#10 | integer | |
| 10 | W dmd | W | integer | ×0.1 |
| 12 | W dmd peak | W | integer | ×0.1 |
| 14 | PF | PF | smallint | ×0.001 |
| 15 | Hz | Hz | smallint | ×0.1 |
| 16 | kWh (+) TOT | kWh | integer | ×0.1 |
| 18 | Kvarh (TOT | kvarh | integer | ×0.1 |
| 20 | kWh (+) PARTIAL | kWh | integer | ×0.1 |
| 22 | Kvarh (+) PARTIAL | kvarh | integer | ×0.1 |
| 24 | kWh (+)T1 | kWh | integer | ×0.1 |
| 26 | kWh (+) T2 | kWh | integer | ×0.1 |
| 32 | kWh (-) TOT | kWh | integer | ×0.1 |
| 34 | Kvarh (-) TOT | kvarh | integer | ×0.1 |
| 771 | Revision code | Revision | word | |
| 11 | Garo identification code | word |