The status2 command returns the status of the corresponding port, including an additional hardware error byte from the MAX14819 channel status register. It is an extended version of CMD_STATUS (0x06).
Command:
| Octet # | Usage |
|---|---|
| 0 | Command ID = 0x08 |
| 1 | Port index 0x00 or 0x01 |
Return Success:
| Octet # | Usage | Comment |
|---|---|---|
| 0 | Command ID = 0x08 | |
| 1 | Port index 0x00 or 0x01 | |
| 2 | Process data IN valid | 0x00 = Not valid 0x01 = Valid |
| 3 | Process data OUT valid | |
| 4 | Transmission rate | 0x00 = Detection Failure 0x01 = COM1 (4.8 kbps) 0x02 = COM2 (38.4 kbps) 0x03 = COM3 (230.4 kbps) |
| 5 | Process data IN length | |
| 6 | Cycle time | |
| 7 | Process data OUT length | |
| 8..9 | Vendor ID | 16-bit value |
| 10..13 | Device ID | 32-bit value |
| 14 | Power | 0x00 = Power OFF 0x01 = Power ON |
| 15 | Hardware error | Lower 3 bits of MAX14819 REG_ChanStatA/B. 0x00 = No error |