Status LEDs
L/A (Link/Act)
A green LED labelled "L/A" is located next to each EtherCAT socket. The LED indicates the communication state of the respective socket:
| LED | Meaning | 
|---|---|
| off | no connection to the connected EtherCAT device | 
| lit | LINK: connection to the connected EtherCAT device | 
| flashes | ACT: communication with the connected EtherCAT device | 
Run
Each EtherCAT slave has a green LED labelled "Run". The LED signals the status of the slave in the EtherCAT network:
| LED | Meaning | 
|---|---|
| off | Slave is in "Init" state | 
| flashes uniformly | Slave is in "Pre-Operational“ state | 
| flashes sporadically | Slave is in "Safe-Operational" state | 
| lit | Slave is in "Operational" state |