13. Series 8 I/O
Alarms and Failures
13.3. Reviewing IOM hard failures
R500
Series 8 I/O User's Guide
289
April 2017
Honeywell
Step
Action
IOMLHFSTA / IOMLHFSTB parameters.
3
Record the
IOM firmware
and
hardware revisions
located on the
Configuration Form's Maintenance tab:
Hardware Revision of the failed IO module.
Firmware Revisions (Boot Image and Application Image) of the failed IO
module.
Release number of the Experion system in which the IO module was
operating.
4
Extract the
C300 Controller internal logs
using the CTool Application.
5
Extract the
IOM internal logs
(trace and crash logs) using the CTool
Application.
6
Report the problem to Honeywell TAC and provide all data captured in steps
2-5.
IOM Behavior during Hard Failures
When the IOM hard fails and switch over to the secondary does not take place:
For a Digital Output module:
all field output terminals for channels with DOTYPE = STATUS go to the
configured fault state.
the field output terminals for channels with other DOTYPE go unpowered.
For an Analog Output module, all field output terminals go unpowered
INITREQ is asserted on all associated Output Channel Blocks
the IOM icon in the Monitor tab becomes RED
the Detail Display shows No Response