Chapter 12. Diagnostics212 PACSystems* RX7i & RX3i TCP/IP Ethernet Communications User Manual GFK-2224QBlinkCode Description Blink Code Description0x39 Instruction cache TLB miss exception 0x78 Boot: Unexpected Restart pushbuttoninterrupt0x41 BSP startup error12.5 Controller Fault TableMost error conditions involving the Ethernet interface generate faults in the Controller Fault table. The table onthe next two pages lists Ethernet interface faults and corrective actions.To access the details of a Controller Fault Table entry, double-click the Fault Table entry and the details aredisplayed as “fault extra data”. Refer to Online Help in the PLC programming software for more information.An example of the fault extra data is shown below:Figure 89: Fault Extra Data ExampleFor Ethernet Interfaces the leftmost 14 digits of fault extra data (underlined in the example above) show thecorresponding log Events (2 digits) and Entries 2, 3, and 4 (in that order, 4 digits each).The example above is reporting▪ an Event 16,▪ Entry 2=6,▪ Entry 3=3, and▪ Entry 4=5.This information can be used to refer directly to detailed fault descriptions included in the Exception Log Eventtables in GFK-2225, TCP/IP Ethernet Communications for PACSystems Station Manager Manual. (In thatdocument, refer to Appendix B, Exception Log Events.)Controller Fault Table DescriptionsController Fault User ActionBackplane communications withcontroller fault; lost requestCheck to make sure that the logic application is not sending COMMREQsfaster than the Ethernet Interface can process them. Reduce the rate atwhich the application is sending COMMREQs to the Ethernet interface. Ifproblem persists, contact Technical Support.Mailbox queue full – COMMREQabortedCheck to make sure that the logic application is not sending COMMREQsfaster than the Ethernet Interface can process them. Reduce the rate atwhich the application is sending COMMREQs to the Ethernet interface. Ifproblem persists, contact Technical Support.Bad local application request;discarded requestCheck for valid COMMREQ command code. If problem persists, contactTechnical Support.Bad remote application request;discarded requestTry to validate the operation of the remote node. If problem persists,contact Technical Support.Can’t locate remote node;discarded requestError reported when message received where IP/MAC address cannot beresolved. Error may indicate that remote host is not operational on thenetwork. Check that remote host is operational on network and itsaddresses are correct.
