10. C300 Controller Troubleshooting
10.4. Fixing common problems
R500
April 2017
Series 8 C300 Controller User's Guide
Honeywell
241
Cause 2
Secondary IOTA is defective.
Solution
Replace the Secondary IOTA that initiated switchover when fault was
detected. Refer to the section
C300 Controller module and IOTA
for details.
If Secondary controller synchronizes after replacement, the removed
IOTA is defective. Otherwise, proceed to Cause 3.
Cause 3
Primary controller is defective.
Solution
Replace the Primary controller. Refer to the section
for details.
If you can command synchronization after replacement, the removed
C300 Controller is defective. Otherwise, proceed to Cause 4.
Cause 4
Primary IOTA is defective.
Solution
Replace the primary IOTA. Refer to the section
for details.
If the controller pair synchronizes after IOTA replacement, the removed
IOTA is defective. Otherwise, proceed to Cause 5.
Cause 5
There is a software problem.
Solution
Contact TAC.
Duplicate Device Index setting
The FTE subsystem detects duplicate Device Index settings in separate nodes.
Diagnostic Check
All nodes will stop tracking cable status for the detected duplicate Device
Index value. Communications will continue and will not impact system
performance until there is a cable fault. This fault will also be detected by
the FTE System Management Tool.
A duplicate Device Index could cause a duplicate IP Address. In most
cases, the duplicate IP Address would be detected first and prevent the
FTE diagnostic messages from being sent.
Cause 1
Device Index switches on separate IOTA's are set to same value.
Solution
Change Device Index switches setting on one of the IOTA's to a unique
value. Refer to the section
Reset Device Index and IP address of
for more information.
