Diagnostics and Troubleshooting - User Interface
Table 30 - Scanner Diagnostics
Diagnostic | Number | Possible Cause | Scanner Action | User Action |
Condition | of |
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| Strobes |
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Watchdog Reset | 3 | Watchdog reset resulting from | Scanner restarts and | 1. Cycle power to the scanner |
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| software failure | requests configuration | 2. Upgrade scanner software |
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| from the main CPU. | |
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| 3. Replace scanner module |
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| 4. Contact Honeywell Personnel. |
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Prefetch abort | 3 | CPU failed when attempting to | See watchdog reset | 1. Cycle power to the scanner |
CPU exception |
| fetch an instruction from the |
| 2. Isolate system from noise and |
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| prefetch register. |
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| cycle power to the scanner |
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| 3. Replace scanner module |
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Address error | 3 | The reserved exception | See watchdog reset | See Prefetch abort CPU |
CPU exception |
| occurred for an unknown |
| exception |
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| reason. |
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Undefine | 3 | Bad Instruction Detected | See watchdog reset | See Prefetch abort CPU |
instruction CPU |
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| exception |
exception |
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Data abort CPU | 3 | CPU failed when attempting to | See watchdog reset | See Prefetch abort CPU |
exception |
| access data. |
| exception |
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Software interrupt | 3 | Spurious Interrupt | See watchdog reset | See Prefetch abort CPU |
exception |
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| exception |
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Vector error | 3 | Interrupt vectors in RAM were | Interrupt vectors were | See Watchdog reset |
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| corrupted | restored |
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Flash write error | 4 | Flash failed to burn properly. | The boot code is the | Do a code download. |
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| only software running. |
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| This software waits |
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| for a request to burn |
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| the flash. It does no |
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| scanning of modules. |
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| Modules remain in |
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| their failsafe state. |
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Rack backplane | 6 | The Scanner is unable to | Does no scanning of | 1. Remove modules and check |
failure |
| successfully communicate to | modules. Modules | for bent pins on connectors. |
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| any modules that are in its SPI | remain in their failsafe | 2. Reinsert modules one at a time |
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| backplane. | state. | |
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| and note which module the |
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| diagnostic reoccurs, and |
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| replace that module. |
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| 3. Cycle power to the rack. |
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| 4. Replace the power supply. |
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| 5. Replace the rack. |
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| 6. Replace the scanner module. |
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Revision 5 | HC900 Hybrid Controller Installation and User Guide | 137 |
9/03 |
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