| PWR |
green |
ON (light) |
Power supply available. |
| OFF (dark) |
Power supply not available or defective hardware. |
| RDY |
yellow |
ON |
Boot procedure |
| Blinking |
Boot failure |
| OFF |
— |
| RUN |
green |
ON |
Communication module is operational. |
| Blinking |
— |
| OFF |
Communication module is not operational. |
| CAN-RUN |
green |
ON |
Operational: Device is in the OPERATIONAL state. |
| Single Flash |
Stopped: Device is in STOPPED state. |
| Blinking |
Pre-operational: Device is in the PREOPERATIONAL state. |
| OFF |
No communication or no power supply. |
| CAN-ERR |
red |
ON |
Bus Off: The CAN controller is bus off. |
| Single flash |
Warning limit reached: At least one of the error counters of the CAN controller has reached or exceeded the warning level (too many error frames). |
| Double flash |
Error control event: A guard event (NMT Slave or NMTmaster) or a heartbeat event (Heartbeat consumer) has occurred. |
| OFF |
No Error: Device is in working condition. |
