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PI Interface for OPC Alarms and Events

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Advising

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  • Last UpdatedOct 20, 2026
  • 1 minute read

The Alarms/Events server notifies clients when a change in data has occurred. Read-on- change points are advised, which means that the OPC AE server sends data whenever a new value is read into the server's cache. The PI OPCAE interface does advise operations only and does not poll for new values.

UniInt Failover

This interface supports UniInt failover.