C300 Redundancy-related notifications
OPM Status – RDNOPMSTATUS
R301.1 Experion C300 Controller User's Guide 205
11/06 Honeywell
Notification Description
RDNOPMSTATUS
Parameter
initial-sync as part of an OPM session.
OPM (4) Open I/O
Conns
The primary controller generates this notification prior to the
transfer of I/O connection related data as part of initial-sync
during an OPM session.
OpenIoConns
OPM (5) Match
Peer Refs
This notification is generated by the primary controller prior
to transferring peer cross-reference ID data as part of initial-
sync during an OPM session.
MatchPeerRefs
OPM (6) Transfer
Data
This notification is generated by the primary controller prior
to transferring dynamic data as part of initial-sync during an
OPM session.
From this point forward, control is frozen on the primary
controller for up to 5 seconds (depending on the size of the
control strategy). Control is resumed following either the
switchover (upon completing OPM initial-sync) or on
abnormal termination of the OPM session.
TransferData
OPM Session
Complete
Upon the successful completion of OPM initial-sync, a
switchover follows shortly after (<100 ms). This notification
is generated by the primary controller due to event
regeneration following the switchover into the primary
redundancy role and represents successful completion of
the controller OPM session.
SessionComplete
OPM Partial Cold
Init
The default behavior when one or more blocks have not yet
implemented OPM support is to cold initialize the block(s).
Upon the successful completion of an OPM session, the
new primary controller sets the RDNOPMSTATUS
parameter to PartialColdInit and generates this notification to
indicate one or more blocks have been cold initialized. This
notification is generated only once regardless of how many
blocks were initialized. This notification represents
successful completion of the controller OPM session.
PartialColdInit
OPM Commanded
Abort
The primary controller generates this notification when the
Controller Migration Wizard commands the controller to
abort the current OPM session. This notification represents
unsuccessful OPM session termination.
CommandedAbort
OPM Create Block
Timeout
This notification is generated by the primary controller upon
timeout of OPM secondary checkpoint restore operation.
Secondary checkpoint restore timeout occurs if checkpoint
data is stalled for longer than 2 minutes. This notification
represents abnormal OPM session termination.
CreateBlockTimeout
OPM Initial Sync
timeout
This notification is generated by the primary controller when
initial sync does not commence within 2 minutes following
the receipt of the Controller Migration Wizard command to
InitialSyncTimeout
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