Contents
R688 HPM High-Performance Process Manager Service xvii
December 2020 Honeywell
IOP Soft failure ............................................................................................................................................... 302
4.3 Fault Isolation Concepts ...................................................................................................... 303
Introduction ..................................................................................................................................................... 303
Troubleshooting flowcharts ............................................................................................................................. 303
Recommendations for Operators and Service Technicians ............................................................................ 304
Troubleshooting table usage .......................................................................................................................... 304
Troubleshooting Flow Chart ........................................................................................................................... 306
HPMM Corrective Actions .............................................................................................................................. 312
I/O Link overruns ............................................................................................................................................ 314
I/O Link overruns corrective actions ............................................................................................................... 315
Comm/Control Hard failure codes .................................................................................................................. 315
HPMM Soft Failure Codes .............................................................................................................................. 335
Comm/Control Soft failure error codes ........................................................................................................... 337
I/O Link processor Hard failure error codes .................................................................................................... 340
IOP Hard failure error codes ........................................................................................................................... 341
IOP Box Soft failure error codes ..................................................................................................................... 343
IOP Slot Soft failure error codes ..................................................................................................................... 348
Additional Troubleshooting for EUCN nodes .................................................................................................. 349
4.4 Smart Transmitter Interface ................................................................................................. 350
Introduction ..................................................................................................................................................... 350
STI IOP and FTA faults .................................................................................................................................. 350
Two wire link or Smart Transmitter faults ....................................................................................................... 351
4.5 FTA Redundancy Indicators ................................................................................................ 351
Introduction ..................................................................................................................................................... 351
AO FTA redundancy indicator ........................................................................................................................ 351
HLAI FTA redundancy indicator ..................................................................................................................... 351
4.6 Redundant Analog Output IOP Failure Diagnosis ............................................................. 351
Introduction ..................................................................................................................................................... 351
Considerations ............................................................................................................................................... 352
Avoid removing IOP A .................................................................................................................................... 352
IOP A preference ............................................................................................................................................ 352
Replacing the FTA switching module ............................................................................................................. 352
Switch to IOP A when a Soft failure occurs .................................................................................................... 352
Consider use of an AO Standby Manual device ............................................................................................. 352
OK/CNF [S] status .......................................................................................................................................... 353
Replacing the switching module ..................................................................................................................... 353
[S] CNF/OK status .......................................................................................................................................... 353
Best solution when replacing switching module ............................................................................................. 353
Switching module replacement procedure ...................................................................................................... 354
IOP B should be secondary ............................................................................................................................ 354
4.7 Battery Backup Exhaustion ................................................................................................. 354
Introduction ..................................................................................................................................................... 354
Loss of 24 Vdc ................................................................................................................................................ 354
Multiple battery backup ................................................................................................................................... 354
US response to 48 Vdc battery failure ............................................................................................................ 354
4.8 HPMM Card and Module Indicators ..................................................................................... 355
Application of power ....................................................................................................................................... 355
Status indicators and Alphanumeric display ................................................................................................... 355
HPM UCN Interface module ........................................................................................................................... 355
Indicator functionality ...................................................................................................................................... 355
High-Performance Comm/Control card Status indicator ................................................................................. 356
High-Performance I/O Link card Status indicator ........................................................................................... 356
HPM UCN Interface module Transmit indicator .............................................................................................. 357
Power and Status indicators ........................................................................................................................... 357
HPMM fuse ..................................................................................................................................................... 357
UCN Interface Module fuse ............................................................................................................................ 357
HPMM Card extractors ................................................................................................................................... 357
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