This Function Code writes a single bit. 0xFF00 sets the coil ON, 0x0000 sets the coil OFF.
Query:
| Field | Data | Number of Bytes |
|---|---|---|
| Slave Address | 0x03 | 1 |
| Function Code | 0x05 | 1 |
| Start Address HI | 0x00 | 1 |
| Start Address LO | 0x01 | 1 |
| Data HI | 0xFF | 1 |
| Data LO | 0x00 | 1 |
| Error Check | CRC | 2 |
Response:
| Field | Data | Number of Bytes |
|---|---|---|
| Slave Address | 0x03 | 1 |
| Function Code | 0x05 | 1 |
| Start Address HI | 0x00 | 1 |
| Start Address LO | 0x01 | 1 |
| Data HI | 0xFF | 1 |
| Data LO | 0x00 | 1 |
| Error Check | CRC | 2 |