Honeywell C300 - Controller Does Not Synchronize with Backup

238
Series 8 C300 Controller User's Guide
Honeywell
R500
April 2017
10. C300 Controller Troubleshooting
10.4. Fixing common problems
no FTE Diagnostic messages over the sample interval of this
diagnostic. In this case, the C300 Controller's FTE Receive Fault
Diagnostic will indicate a spurious fault. The spurious alarm
generated by the FTE Receive Fault Diagnostic is a relatively minor
side effect, in the case of a network storm. A network storm is
signaled by other alarms in the system.
Solution
Unless you suspect that one of the causes described above exists and is
resulting in a spurious indication, you should replace the C300
Controller Module exhibiting this diagnostic at your earliest convenience.
When this fault exists, network redundancy for this node no longer is
working. See C300 Controller module and IOTA replacem ent for details.
Controller does not synchronize with backup
Diagnostic Check
Primary controller cannot synchronize with backup.
In the Monitoring tab, double-click the primary C300 icon to display its
Parameters configuration form. Click the Redundancy tab to display it
and check the Inhibit Sync Reason parameter for a description for the
controller not achieving synchronization.
Troubleshoot to correct condition for inhibiting sync.
Cause 1
Redundancy cable bad.
Solution
Replace redundancy cable. Check to see if controllers synchronize.
Cause 2
Controller IOLINKS may be configured for Series 8 I/O.
IOL cables may be disconnected.
Solution
Reconnect cables to controller IOTA.
Cause 2
Backup controller bad.
Solution
Replace controller module. Refer to the section C300 Controller module
and IOTA replacement for details.
Check to see if controllers synchronize.
Cause 3
Backup IOTA bad.
Solution
Replace the IOTA. Reinstall the original backup controller module on
the new IOTA. Refer to the section C300 Controller module and IOTA
replacement for details.
Check to see if controllers synchronize.
Cause 4
Primary controller module bad.