Annotations and the acknowledgment feature

Information associated with previous times that a notification was generated is stored as annotations on each event frame that triggered the notification. The annotations can be accessed by selecting the specific event frame of interest from the Event Frames plug-in on PI System Explorer. Each event frame annotation includes such information as the notification rule corresponding to the send event, the subscribers who were notified and when they were notified, and whether the attempt to notify was successful.

If you have migrated from PI Notifications 2012, and elected to migrate both configuration and history, your legacy notifications history is fully migrated; the historical information is migrated as annotations on the event frames created during migration. The migration report includes information on the legacy history instances that were processed during migration.

Note: For information on permissions required during migration, see Migration from PI Notifications 2012.

Event frame annotations may also be viewed using AVEVA PI Vision or other client tools that support viewing annotations.

Acknowledgment feature

The acknowledgment feature is used by notifications and PI AF client applications, such as AVEVA PI Vision. The event-frame acknowledgment feature replaces the acknowledge notification functionality in legacy PI Notifications 2012 and older versions.

For more information on acknowledging event frames in PI AF, see Event frame acknowledgement and Acknowledge event frames.

For more information on viewing and acknowledging event frames using AVEVA PI Vision, see View event details and annotate events.