Honeywell HPM, Service

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4 Fault Isolation
4.3 Fault Isolation Concepts
344 HPM High-Performance Process Manager Service R688
Honeywell December 2020
Table 62 IOP Box Soft Failure Error Codes
Error
Code Failure
Mnemonic
Description Corrective Action
08 EECNTERR EEPROM counter error. The number
of writes to EEPROM has exceeded
the safe number (10,000). This could
indicate the IOP has not been
calibrated because a virgin EEPROM
will fail this test. Same as error code 07.
09
EEFLAGER EEPROM semaphore (incomplete)
error. Same as error code 07.
09 EEFLAGER EEPROM semaphore (incomplete)
error. Same as error code 07.
10
SWTCHERR No longer used. No action required.
11 ADRAMCNT ADP (Analog to Digital Processor
–
LLAI only) private RAM contents
failure.
Replace the appropriate IOP card because the
ADP has failed.
12 ADRAMADR ADP (LLAI only) private RAM
address error. Replace the IOP card.
13 MBRAMCNT LLAI shared RAM contents failure. Replace the IOP card.
14
MBRAMADR LLAI shared RAM address error. Replace the IOP card.
15 MBCHKMER LLAI shared RAM checksum error. Replace the IOP card.
16
ADROMERR ADP (LLAI only) ROM checksum
failure. Replace the IOP card.
17 BADADPER Application processor (LLAI or STI)
has a communication failure with the
High-Performance I/O Link card. If the error persists, replace the IOP card.
18 ADSTRTUP ADP (LLAI only) failed on IOP
startup. Replace the IOP card.
19 SCANORUN Input IOP overran its input scan.
Inputs have been lost. Check for a "chattering" DI point. Another
possible cause would be intermittently bad I/O
link hardware.
20 SCANURUN DI IOP scan underrun. No longer used. No action required.
21 INPTFAIL Input point failure. Check which input is failing, then check the
hardware for that input. Replace the hardware if
required.
22 BADSECRG DO IOP card secondary regulator is
not functioning. Replace the DO IOP card.