GE Series 90-70 manual Error Codes Troubleshooting, Error Description RecommendedAction Code

4

Error Codes: Troubleshooting

The less significant byte of an I/O Link status register contains an error code supplied by the Program Block. Error codes are listed below and on the next page.

Error	Description of	RecommendedAction
Code	Error
0	No error	None
1	I/OLinkmodule	Reset the module by pressing the pushbutton or cycling power. If the
	hardware fault	problem persists, replace the module.
2	ExternalI/Olink	This fault can be caused by pressing the Reset pushbutton while the link is
	failure	operating. If that is not the cause, inspect all cabling and examinecarefully
		each link device. Reset the link. If the problem persists, remove devices
		from the link one at a time to isolate the defective unit. This error code may
		also be caused by a hardware problem on the I/O Link Interface Module.
3	Configuration error	Try to reinitialize the link interface. If the problem persists, contact the GE
		Fanuc PLC service hotline (phone number: 1±800±978±5747).
4	Link interface is not	Check that the I/O Link Interface Module is installed in the rack and slot
	responding	location specified in the %P configuration data. Also determine if the
		module is inserted completely in the backplane, and the VME bus is
		operating to other modules in that rack. Make sure that the Logicmaster
		configuration has been correctly completed for the module as described in
		chapter 4. Reset the module by cycling power on the rack. If the problem
		persists, replace the link module.
6	Link Reset	This code indicates that a reset has occurred, or that the application program
		has reset the link by writing a 1 to control bit 13. The fault bit (status bit 12)
		is not set. The I/O Link Module automatically resets control bit 13 to 0 to
		acknowledge that it has received the command.
9	Invalid Number of	This code means that the number of I/O Link Interface Modules is not in the
	I/OLinkModules	range of 0±2 or 0±4, as specified in program reference %P0001.

34 Series 90t-70 I/O Link Interface Module User's Manual ± February 1993 GFK-0644A