IOLINK block soft failures
Device Index value is zero upon power up
234 Experion C300 Controller User's Guide R301.1
Honeywell 11/06
Soft Fail Message Condition when indicator is lit Corrective Action
IOL Maximum Error
Exceeded
Shows the I/O link has exceeded the
maximum error limit.
See “IOL Channel A Failure” and
“IOL Channel B Failure” Soft fail
Messages
Not Active Supervisor
Indicates that the IOL interface
daughter card could not transition into
the active supervisor role.
Generally this is caused by a
partner IOLINK with conflicting
IOLINK Address (See Duplicate
IOL Address).
IOLIM Daughter Card
Soft Failure
Indicates that a Daughter Card Soft
Failure exists.
Partner I/F Not Visible
On IOL
Shows the Primary IOLINK is unable
to view it's redundant partner across
the I/O Link
Call Honeywell TAC.
Partner I/F Mismatch
On IOL
Indicates that the Secondary IOLINK
Partner is incompatible with the
Primary. The software versions may
be different.
Applicable only to IOLIM.
Check/Replace the IOLINK
firmware application version.
Call Honeywell TAC.
IOL PROCESSOR
UNKNOWN SF
Indicates a Daughter Card soft
failure.
Call Honeywell TAC.
IOL PROCESSOR,
RESUMPTION OF NON-
WAIT TASK
Indicates a Daughter Card soft
failure.
Call Honeywell TAC.
IOL PROCESSOR,
DIAGNOSTIC
INITIATION TIMEOUT
Indicates a Daughter Card soft
failure.
Call Honeywell TAC.
IOL PROCESSOR,
DIAGNOSTIC CYCLE
OVERFLOW
Indicates a Daughter Card soft
failure.
Call Honeywell TAC.
IOL PROCESSOR
STACK LIMIT
OVERFLOW
Indicates a Daughter Card soft
failure.
Call Honeywell TAC.
IOL Process Data Cycle
Overruns
Indicates that PV scanning from the
IOM or IOMs was not completed
within the IOM scan rate timeframe.
Reduce the IOM’s scan rate or the
execution period of the Control
Modules containing connections to
IO Channels.
UM51 Diagnositc
Exceeded Time
Threshold
The time allotted for the incremental
internal diagnostic has been
exceeded.
Call Honeywell TAC.
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