Eaton HCU16x, Instruction Manual

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DRAFT - 11 December 2014
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DRAFT - 11 December 2014 DRAFT - 11 December 2014
INM MTL4850_54 Rev4
10 APPENDIX B - ALARM EVENT LOG
The multiplexer maintains a log of alarm events that may read using the Instrument
Management Software. The types of event that might appear can be grouped into the
following categories:
• General information
• Multiplexer internal parameters or values
• Diagnostic errors causing reset
The possible event log messages are listed below by category, and the meaning or
appropriate action is supplied beside them.
General logs Meaning or required action
!Alarm generated by HART test command 242 MTL diagnostic test activated
!No storage space for transmitter Memory full of field device data
!Found a pre Rev 5 HART transmitter Check manufacturer for update
!Other master detected on loop Secondary master present
!Alarm Clear input used to reset alarms
Download of bootloader started Firmware update in progress
Bootloader download complete, module will restart Firmware update completed
Debug mode. No CRC installed in flash memory
Reset due to Watchdog or Brownout See list of causes below
Module Powered Up
Module failed watchdog test Return to MTL if alarm persists.
Warm start - Event Log or status corrupt
Unknown reason for module reset
Logs followed by a value: Meaning or required action
!Duplicate Transmitter Unique Id. ID used on loop Check manufacturer for update
!+12V Supply out of range Check power supply to multiplexer is
within specification.
Return to MTL if alarm persists.
!-12V Supply out of range Return to MTL if alarm persists.
!VBias out of range Return to MTL if alarm persists.
!VLeak out of range Return to MTL if alarm persists.
Power up scan complete - Transmitters found = Number, 0-32
Logs followed by 2 values: Meaning or required action
!VH signal out of range Check power supply to multiplexer is
within specification.
Return to MTL if alarm persists.
Log messages following an error that caused
the module to reset Meaning or required action
!CRC error in RAM copy of serial number Return to MTL if alarm persists.
!CRC error in RAM image of configuration parameters Return to MTL if alarm persists.
!An internal watchdog reset occured Return to MTL if alarm persists.
!A clock monitor reset occured Return to MTL if alarm persists.
!Module restarted due to failure in Startup Ram test Return to MTL if alarm persists.
!Background RAM word test failed Return to MTL if alarm persists.
!Background Ram byte test failed Return to MTL if alarm persists.
!Background Ram block test failed Return to MTL if alarm persists.
!Cold start flash test failed Return to MTL if alarm persists.
!Incremental flash test failed
Return to MTL if alarm persists.
!Incremental flash test switch variable corrupt Return to MTL if alarm persists.
!Illegal instruction trap did not execute Return to MTL if alarm persists.
!Stack overflowed Return to MTL if alarm persists.
!Stack underflowed Return to MTL if alarm persists.