6 |
Table 6-10. Exception Log Event Codes - Continued
Log Event |
|
Code | Possible Cause and Resolution |
Eventªcº | 120* ªLAN Controller Fault;RestartedLANI/Fº |
LLC events | or |
(Continued) | 121* ªLAN Interface Hardware Failure; Switched Off Networkº: |
| Fuse F1 on the LAN Controller board, which protects the PLC Power |
| Supply from overload from the externaltransceiver, is blown.. This fuse is |
| not field replaceable. Correct the external fault and replace the LAN |
| Controllerboard. |
| 122* ªLAN Controller Fault;RestartedLANI/Fº |
| or |
| 23* ªLAN InterfaceHardwareFailure; Switched Off Networkº: |
| |
| |
| The MAC chip failed its internal loopback test. Replace the LAN |
| Controllerboard. |
| 124* ªLAN Controller Fault;RestartedLANI/Fº |
| or |
| 125* ªLAN Interface Hardware Failure; Switched Off Networkº: |
| The MAC chip failed to initialize. Replace the LAN Controller Board. |
| 126*ªLANControllerFault;RestartedLANI/Fº |
| or |
| 127* ªLAN Interface Hardware Failure; Switched Off Networkº |
| The MAC reported a ªbabbleº fault; more than 1518 bytes of data have |
| been transmitted in a frame. Replace the LAN Controller board. |
| 128* ªLAN Controller Fault;RestartedLANI/Fº |
| or |
| 129* ªLAN Interface Hardware Failure; Switched Off Networkº : |
| TheMAC reported a handshaking error in accessing the LAN Controller |
| memory. Replace the LAN Controller board. |
| 12a* ªLANControllerFault;RestartedLANI/Fº |
| or |
| 12b* ªLAN Interface Hardware Failure; Switched Off Networkº: |
| The MAC reported a broken ªchainº of buffers in a transmit frame. Since |
| the LAN Controller does not chain buffers, this should not occur. Replace |
| the LAN Controller board. If this fault recurs, please report it to GE Fanuc. |
| * Same fault for both reports. It is remotely possible that error codes |
| 120 - 12b may occur due to a transient system fault. Because of this |
| possibility, an attempt is made to recover without manual intervention, by |
| restarting the LAN Controller (thus rerunning power±up diagnostics). If a |
| hardware fault is detected, the LAN Controller will be held in reset. To |
| prevent repeated restarts and to protect the network, the LAN IF will |
| instead Switch Offline from the Network (rather than Restart) if this fault |
| occurs within 5 minutes of startup. |
|
|
TCP/IP Ethernet Communications User's Manual ± January 1996 |
|