LED Status Display

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

• The 5 system LEDs (PWR, NET, DC, 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 statuses of the inputs and outputs and display possible errors.

Status of the 5 System-LEDs:

LED	Color	off	on	flashing	1x flash	2x flash
PWR/RUN	green	Error in the internal supply voltage or process voltage missing	Internal supply voltage OK	Module is not configured	–	–
	yellow	–	–	–	–	–
NET	green	Init	operational	pre-operational	safe-operational	–
	red	No Error	PDI Watchdog Timeout	Invalid Configuration	Unsolicited State Change	Application time out
DC *)	green	Distributed Clock not active	Distributed Clock active	–	–	–
	red	–	–	–	–	–
S-ERR	red	No error	Internal error	–	–	–
I/O-Bus	green	No expansion modules connected or communication error	—	—	–	–
ETH1	green	No EtherCATâ connection	Link OK No data transfer	Link OK Data transfer OK	–	–
	yellow	–	–	–	–	–
ETH2	green	No EtherCATâ connection	Link OK No data transfer	Link OK Data transfer OK	–	–
	yellow	–	–	–	–	–

*) The status of this LED is only significant if the camswitch functionality is enabled

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