GE 90-30 PLC User Manual

Page 83

4-4

TCP/IP Ethernet Communications User’s Manual – August 1997

GFK-1084B

Table 4-1. PLC Fault Table Descriptions (Continued)

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PLC Fault

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User Action

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LAN I/F can’t init - check parms; running
soft Sw utl

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Internal system error. User Action: If problem
persists, contact GE Fanuc Automation.

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LAN I/F capacity exceeded; discarded re-
quest

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Verify that connection limits are not being exceeded.

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LAN interface hardware failure; switched
off network

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User Action: Replace Ethernet Interface.

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LAN network problem exists; perfor-
mance degraded

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Excessive backlog of transmission requests due to
excessive traffic on the network. For a sustained pe-
riod the MAC was unable to send frames as quickly
as requested. User Action: If problem persists, con-
tact GE Fanuc Automation.

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LAN severe network problem; attempting
recovery

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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.

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LAN system-software fault; aborted
connection resuming

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Internal system error. User Action: If problem
persists, contact GE Fanuc Automation.

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LAN system-software fault; restarted LAN
I/F

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Internal system error. User Action: If problem
persists, contact GE Fanuc Automation.

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LAN system-software fault; resuming

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Internal system error. User Action: If problem
persists, contact GE Fanuc Automation.

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LAN transceiver fault; OFF network until
fixed

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Transceiver or transceiver cable failed or became dis-
connected. User Action: Reattach the cable or re-
place the transceiver cable. Check SQE test switch if
present on transceiver.

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Local request to send was rejected; dis-
carded request

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Internal error. Check that the Ethernet Interface is
online. User Action: If problem persists, contact GE
Fanuc Automation.

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Memory backup fault; may lose config/log
on restart

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Internal error accessing FLASH device.
User Action: If problem persists, contact GE Fanuc
Automation. Replace Ethernet Interface.

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Module software corrupted; requesting
reload

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Catastrophic internal system error. Contact GE Fa-
nuc Automation.

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Module state doesn’t permit Comm_Req;
discarded

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COMMREQ received when Ethernet Interface can-
not process COMMREQ. User Action: Make sure
Ethernet Interface is configured and online.

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Unsupported feature in configuration

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PLC firmware does not support ethernet commu-
nications software. User Action: Check CPU revi-
sion, order upgrade kit for CPU.