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C300 Redundancy operation
The following topics are presented in describing C300 Controller redundancy. Click on a
topic to view it.
Redundancy description
Redundancy configuration restrictions
Partner (controller) compatibility
Synchronization states
Redundancy parameters
Conditions that result in a loss of sync
Switchover
Conditions that result in a switchover
Redundancy history
C300 redundancy-related notifications
OPM Status and OPM-related notifications
On-process migration of C300 Controller
Controller redundancy specifications
Description
The goal of controller redundancy is to improve the availability of the controller to
perform its assigned control functions. This is done by providing a pair of C300
Controllers (Primary and Backup) so a component failure in one controller switches the
handling of the assigned control functions to the other controller. In this redundant
arrangement, the active or primary controller is considered to have a redundant partner or
backup controller which is available to take over control functions of the primary
controller in the event of a switchover. This is considered a dual redundant system, which
is characterized by the following two main redundancy states.
Primary — Refers to the controller executing the assigned control functions.
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R301.1
11/06
Topic
Experion C300 Controller User's Guide
Honeywell
187
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