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7-6 TCP/IP Ethernet Communications for the Series 90™ PLC User's Manual
–
May 2002 GFK-1541B
7
PLC Fault Table Descriptions (Continued)
PLC Fault
User Action
LAN I/F can’t init - check parms; running soft
Sw utl
Internal system error. User Action: If problem
persists, contact GE Fanuc Automation - NA.
LAN I/F capacity exceeded; discarded request Verify that connection limits are not being exceeded.
LAN interface hardware failure; switched off
network
User Action: Replace Ethernet Interface.
LAN network problem exists; performance
degraded
Excessive backlog of transmission requests due to
excessive traffic on the network. For a sustained period
the MAC was unable to send frames as quickly as
requested. User Action: If problem persists, contact GE
Fanuc Automation - NA.
LAN severe network problem; attempting
recovery
External condition prevented transmission of frame in
specified timeframe. Could be busy network or network
problem. User Action: Check transceiver to make sure it
is securely attached to the network. Check for
unterminated trunk cable.
LAN system-software fault; aborted
connection resuming
Internal system error. User Action: If problem
persists, contact GE Fanuc Automation - NA.
LAN system-software fault; restarted LAN I/F Internal system error. User Action: If problem
persists, contact GE Fanuc Automation - NA.
LAN system-software fault; resuming Internal system error. User Action: If problem
persists, contact GE Fanuc Automation - NA.
LAN transceiver fault; OFF network until
fixed
Transceiver or transceiver cable failed or became
disconnected. User Action: Reattach the cable or replace
the transceiver cable. Check SQE test switch if present on
transceiver.
Local request to send was rejected; discarded
request
Internal error. Check that the Ethernet Interface is online.
User Action: If problem persists, contact GE Fanuc
Automation - NA.
Memory backup fault; may lose config/log on
restart
Internal error accessing FLASH device.
User Action: If problem persists, contact GE Fanuc
Automation - NA. Replace Ethernet Interface.
Module software corrupted; requesting reload Catastrophic internal system error. Contact GE Fanuc
Automation - NA.
Module state doesn’t permit Comm_Req;
discarded
COMMREQ received when Ethernet Interface cannot
process COMMREQ. User Action: Make sure Ethernet
Interface is configured and online.
Unsupported feature in configuration PLC firmware does not support Ethernet communications
software or attempt has been made to configure a feature
not supported by the Ethernet Interface. User Action:
Check CPU and Ethernet Interface revisions, order
upgrade kit for CPU and/or Ethernet Interface.
Network Adapter does not support Ethernet
Global Data
Ethernet Interface does not support Ethernet Global Data
operation. User Action: Check Ethernet Interface
revision; order upgrade kit for Ethernet Interface.