The DeltaV OPC Alarms and Events Server provides an interface to the DeltaV Alarms and Events subsystems. OPC client applications use the DeltaV Alarms and Events Server to collect DeltaV alarm and event information from the DeltaV Alarms and Events subsystems.
The DeltaV OPC Alarms and Events Server is not supported for redundancy. You should not use a DeltaV Alarms and Events Server on either Application Station in a pair on which redundancy has been enabled for assigned modules in a virtual controller, OPC Data Access Server, OPC Mirror, or Redundant DeltaV Connect, because inconsistent and/or erroneous data may result after a switchover.