| LED label | LED color | Normal LED state | Description of LED states |
|---|---|---|---|
|
POWER |
Green |
On Steady |
Off Steady = No Supply Power or the controller’s polyswitch/resettable fuse is open. Check Output wiring for short circuits and cycle power to controller. On Steady = Power Connected |
|
FAULT |
Red |
Off Steady |
Off Steady = No Faults On Steady = Device Fault; no application loaded Blink - 2 Hz = Startup in progress, not ready for normal operation Rapid blink = SA Bus communications issue |
|
SA/FC BUS |
Green |
Blink - 2 Hz |
Blink - 2 Hz = Data Transmission (normal communication) Off Steady = No Data Transmission On Steady = Communication lost, waiting to join communication ring |
|
EOL |
Amber |
Off (Except on terminating devices) |
On Steady = EOL switch in ON position Off Steady = EOL switch in Off position |