LEDs

| LED | Color | Meaning | |
|---|---|---|---|
| E-BUS RUN | green | This LED indicates the terminal's operating state: | |
| off | State of the EtherCAT State Machine: INIT = initialization of the terminal | ||
| flashing | State of the EtherCAT State Machine: PREOP = function for mailbox communication and different standard-settings set | ||
| single flash | State of the EtherCAT State Machine: SAFEOP = verification of the sync manager channels and the distributed clocks. | ||
| on | State of the EtherCAT State Machine: OP = normal operating state; mailbox and process data communication is possible | ||
| flickering | State of the EtherCAT State Machine: BOOTSTRAP = function for terminal firmware updates | ||
| POWER | green | State of the transmit signal line | |
| ENABLE A / B | green | Current controller for channel A / B active | |
| ERROR A / B | red | Error for channel A / B  | |
| WARNING A / B | yellow | Warning for channel A / B  | |