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34 Series 90 -70 I/O Link Interface Module User’s Manual – February 1993
GFK-0644A
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
Code
Description of
Error
Recommended Action
0 No error None
1 I/O Link module
hardware fault
Reset the module by pressing the pushbutton or cycling power. If the
problem persists, replace the module.
2 External I/O link
failure
This fault can be caused by pressing the Reset pushbutton while the link is
operating. If that is not the cause, inspect all cabling and examine carefully
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
responding
Check that the I/O Link Interface Module is installed in the rack and slot
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
I/O Link Modules
This code means that the number of I/O Link Interface Modules is not in the
range of 0–2 or 0–4, as specified in program reference %P0001.