GEM80-400 Table of Contents
Issue 3 04/99 ALSPA GEM80-400 SERIES CONTROLLERS TECHNICAL MANUAL Page xvii
9. Maintenance and Fault Finding ...........................................................................................9-1
9.1. General..........................................................................................................................9-1
9.2. Spare Modules ..............................................................................................................9-1
9.3. Cleaning and Visual Inspection of GEM 80................................................................9-1
9.3.1. General Maintenance and Cleanliness.............................................................9-1
9.4. Batteries.........................................................................................................................9-2
9.4.1. General.................................................................................................................9-2
9.4.2. Battery Connection Procedure ..........................................................................9-2
9.4.3. Battery Replacement Procedure .......................................................................9-3
9.5. Fault Finding ..................................................................................................................9-3
9.5.1. Introduction..........................................................................................................9-3
9.5.2. Monitoring and Test Facilities ..............................................................................9-4
9.5.3. Indicators ..............................................................................................................9-5
9.5.3.1. Front Panel Indications................................................................................9-5
9.5.3.2. Display ..........................................................................................................9-5
9.6. User Program Checksum Calculations........................................................................9-5
9.7. Compilation and Compiler Error Messages (#100 to #199) .......................................9-5
9.7.1. Compilation Error Messages................................................................................9-5
9.7.2. Compilation Checks............................................................................................9-9
9.7.3. Error Messages #105 and #106 and I/O Scanning...........................................9-10
9.7.3.1. I/O Scanning..............................................................................................9-10
9.7.3.2. Basic and Verification I/O.........................................................................9-10
9.7.3.3. Fast I/O .......................................................................................................9-11
9.7.4. Programming Routine for Correction of Compilation Errors...........................9-11
9.7.5. Compilation Errors and the Controller..............................................................9-11
9.8. System Status at Power Up (#500 to #699)................................................................9-12
9.9. Self-test and Self-test Failure Error Messages (#700 to #799)....................................9-15
9.9.1. Self-test Error Messages (#700 to #799).............................................................9-15
9.9.2. Self-test System...................................................................................................9-17
9.9.2.1. Execution....................................................................................................9-17
9.9.2.2. Faults which immediately trip the watchdog.........................................9-17
9.9.2.3. Faults which trip the watchdog when detected by running tests........9-18
9.9.2.4. Faults from which recovery is automatic.................................................9-18
9.9.2.5. Faults which the user may program to trip the watchdog....................9-18
9.10. Interprocessor Communications (Error Messages #800 to #899)...........................9-18
9.11. System Errors (Error Messages #900 to #999) ........................................................... 9-18
9.12. F-Table Usage............................................................................................................9-20
9.13. Serial Communications Diagnostic F -Tables..........................................................9-21
9.13.1. Printer Port.........................................................................................................9-21
9.13.2. ESP Tributary Port..............................................................................................9-21
9.13.3. ESP Control Port................................................................................................9-21
9.13.4. GEMSTART CCU Port.........................................................................................9-22
9.14. Serial Communications Links Statistics F-Tables......................................................9-23
9.14.1. Printer Ports .......................................................................................................9-23
9.14.2. ESP Tributary Ports.............................................................................................9-23
9.14.3. ESP Control Ports...............................................................................................9-23
9.14.4. GEMSTART CCU Ports.......................................................................................9-24
9.15. I/O Statistics...............................................................................................................9-24
9.16. V-Data Tables............................................................................................................9-24
9.17. Clear Store Command.............................................................................................9-26
9.18. Power Module Self-test and Manual Test ...............................................................9-27
9.18.1. Self-test..............................................................................................................9-27
9.18.2. Manual test.......................................................................................................9-27
9.19. Intermittent Tripping Problems .................................................................................9-27
9.19.1. Electrical Noise or Electromagnetic Interference.........................................9-27
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