GE GFK-1541B manual Eok Off

2

	LED Pattern		Where Stopped	Possible Cause	Corrective Actions
❍	EOK	(OFF)	A	Fatal Hardware Error.	ƒ Make sure the PLC has power.
					ƒ Examine PLC Fault Table for clues.
❍ LAN (OFF)
❍	STAT (OFF)		Hardware		ƒ Recheck PLC Programmer
					configuration.
			Failure
					ƒ Power off baseplate, inspect the
					Interface for loose components,
					reseat the module, and Restart.
					ƒ If the problem persists, replace the
					PLC hardware.
✫	EOK	(Slowblink)	B	Software corrupt.	Connect a PC Software Loader and load
					new software. See Appendix C.
✫ LAN (Slowblink)
✫	STAT (Slowblink)		Software
All LEDs blink in unison.			Loader
✫	EOK	(Slowblink)	C	ƒ Did not configure slot using the	ƒ Use the PLC Programmer
				PLC Programmer.	configuration software to configure
❍	LAN	(OFF)
				ƒ CPU not communicating with	the Interface then store the
❍	STAT (OFF)		Waiting for
				Ethernet Interface.	configuration to the PLC CPU.
			Configuration	(Condition can last a maximum of	ƒ Power cycle the PLC.
			from PLC
				2 seconds.)	ƒ Clear faults and Restart Interface.
✫	EOK	(Slowblink)	D	Interface’s IP address has not been	ƒ Use the PLC Programmer to
				configured or has been configured	configure the Interface with a non-
●/✲/❍ LAN		(ON/Traffic/OFF)
				as 0.0.0.0.	zero IP address.
✫	STAT (Slowblink)		Waiting for IP
					ƒ Assign IP address over network
			Address
EOK and STAT blink in unison.
●EOK (ON)			E	ƒ If the LAN LED is OFF,	ƒ Connect cable.
●/✲/❍	LAN (ON/Traffic/OFF)			the problem may be	ƒ Examine PLC Fault Table to find out
●/❍ STAT(ON/OFF)			Operational	network cable not	why the STAT LED is OFF.
				connected

ƒIf the STAT LED is OFF, an exception condition has occurred.

GFK-1541B Chapter 2 Installation 2-39