GE GFK-1004B user manual Problems During Power-Up

2

Problems During Power-Up

The Ethernet Interface may not transition directly to the Operational State upon power± up or restart. It may stop in another state or a fault may have been detected. Refer to the table below for possible states your Ethernet Interface can assume after completion of power-up diagnostics.

LED Pattern	Where Stopped	Possible Cause	Corrective Actions
MODULE OK On	Loaderutility	Interface requires a (re)load	Load the Communication Soft-
STATUS OK Blinking		ofcommunicationssoftware.	ware. See Procedure4.
MODULE OK On	Operational	Transceiverortransceiver	Connect cable & transceiver.
ONLINE Off		cable not (properly) con-
		nected.
		SQE not enabled on trans-	Set SQE ON on transceiver in ac-
		ceiver.	cordwithmanufacturer's
			instructions.
			Use LM90 configurator to set
		LAN Online Soft Switch* set	LAN Online Soft Switch* to
		to NO.	ªYESº. See Procedure3.
MODULE OK On	Operational	Exception condition oc-	Use the Station Manager LOG
ONLINE On		curred.	command as explainedin
STATUS OK Off			Chapter 6 under the section,
			ªTroubleshootingWhen
			STATUS OK LED is OFFº.
MODULE OK Blink-	Soft Switch Entryutility	Invalid Soft Switch Data.	Correct Soft Switch Data and
ing Slowly		Soft Switch Data checksum	Restart or Reload Ethernet Inter-
		invalid. System Software	face. See Procedures 3
		detectedincompatibleMAC	and/or4.
		address assignments. Cer-
		tain system errors.
		IP address = 0.0.0.0
MODULE OK Off	Power-Up/Restart	Fatal Error.	Inspect the Interface for loose
			components, reseat the Inter-
			face, and Restart. Recheck
			Logicmaster90Configuration.
			Examine PLC Fault Table for
			clues. If the problem persists,
			replace the Interface.
* MMS-ETHERNET configuration mode only

2-10 TCP/IP Ethernet Communications User's Manual ± January 1996 GFK-1004B