13. Series 8 I/O
Alarms and Failures
13.2. Reviewing IOM soft failures
R500
Series 8 I/O User's Guide
287
April 2017
Honeywell
185
RLYEXTBDMSSNG
Relay Extension Board Missing
Diagnostic check:
Relay Extension Board missing
Cause:
Relay Extension Board missing
Solution:
Ensure Relay Board is properly installed.
186
REDHWFAIL
Redundancy hardware failure
Diagnostic check:
Cause:
Redundancy Hardware Failure
Solution:
187
HARTCHANFAIL
IOM or IOTA HART channel failure.
Diagnostic check:
Cause:
IOM or IOTA HART Channel Failure
Solution: