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  |