Function Codes
The TeSys Tera system supports the following Modbus RTU function codes:
|
Function Code |
Description |
|---|---|
|
2 (0x02) |
Read discrete inputs |
|
3 (0x03) |
Read holding registers |
|
4 (0x04) |
Read input registers |
|
6 (0x06) |
Write single holding register |
|
16 (0x10) |
Write multiple holding registers |
|
23 (0x17) |
Read or Write multiple holding registers |
|
43 or 14 (0x2B or 0x0E) |
Read device identification |