Status LEDs

The LEDs are located at the front of module. There are 2 different groups:

• The 5 system LEDs (PWR, STA1 ETH, STA2 ETH, S-ERR and I/O-Bus) show the operation status of the module and display possible errors.
• The 29 process LEDs (UP, UP3, inputs, outputs, CH-ERR1 to CH-ERR3) show the process supply voltage and the states of the inputs and outputs and display possible errors.

Status of the 5 System LEDs

LED	Color	OFF	ON	Flashing
PWR/RUN	Green	Process supply voltage missing	Internal supply voltage OK, module ready for communication with IO Controller	Start-up / preparing communication
	Yellow	—	—	—
STA1 ETH (System LED “BF”)	Green	—	Device configured, cyclic data exchange running	Device configured, acyclic data exchange running
	Red	—	Communication error (timeout) appeared	IP address error
STA2 ETH (System LED “SF”)	Green	Device has valid parameters	Device is running parameterization sequenze	Device has no parameters
	Red	—	—	Device has invalid parameters
S-ERR	Red	No error	Internal error	–
I/O-Bus	Green	No expansion modules connected or communication error	Expansion modules connected and operational	—
ETH1	Green	No connection at ETHERNET interface	Connected to ETHERNET interface	—
	Yellow	—	Device is transmitting telegrams	Device is transmitting telegrams
ETH2	Green	No connection at ETHERNET interface	Connected to ETHERNET interface	—
	Yellow	—	Device is transmitting telegrams	Device is transmitting telegrams

Status of the 29 Process LEDs

LED	Color	OFF	ON	Flashing
DC0 to DC7	Yellow	Input/Output is OFF	Input/Output is ON	–
DI8 to DI15	Yellow	Input is OFF	Input is ON (the input voltage is even displayed if the supply voltage is OFF)	–
DO8 to DO15	Yellow	Output is OFF	Output is ON	–
UP	Green	Process supply voltage missing	Process supply voltage OK and initialization finished	–
UP3	Green	Process supply voltage missing	Process supply voltage OK	–
CH-ERR1 to CH-ERR3	Red	No error or process supply voltage missing	Internal error	Error on one channel of the corresponding group