EL3356 - LEDs

	EL3356 and special versions Unless stated otherwise, the designation “EL3356” always refers also to special versions such as the EL3356-0010.

LED	Color	Meaning
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. Outputs remain in safe state
		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 firmware updates of the terminal
Measure	green	ON	Measurement active (process data are valid)
Measure	green	OFF	Calibration active (if the Calibr. LED is lit) or Test active (if the Test LED is lit) Filters are initialized
Steady state	green	ON	The measured value is stable
Steady state	green	OFF	The measured value is not stable
Self Calibr.	green	ON	Calibration active Process data are not valid
Self Test	green	ON	Self-test active Process data are not valid
Error Dif	red	ON	Channel 1 (strain gauge differential signal) is above or below the valid range Internal reference voltage for channel 1 is missing
Error Ref	red	ON	Channel 2 (strain gauge differential signal) is above or below the valid range Internal reference voltage for channel 2 is missing Reference voltage too low (between -1 V and +1 V)