Legacy Event and Summary Tables

Legacy Event and Summary tables contain definitions for events, including tags associated with events, detectors for events, and actions for events. The event system tables can also store "snapshots" of tag values at the time of an event, as well as details about the event itself.

A special type of event action is a summarization of tag values. A subset of the event tables provide the supporting framework for fully automated summary generation for analog, discrete and string tags.

Legacy Event and Summary tables are:

• _EventTag

• ActionType

• AnalogSnapshot

• CalcType

• DetectorType

• DiscreteSnapshot

• EventHistory

• EventTagPendingDelete*

• Frequency

• SnapshotTag

• StringSnapshot

• SummaryData

• SummaryHistory

• SummaryOperation

• SummaryTagList

• TimeDetectorDetail

• TimeDetectorDetailPendingDelete*

  * System-level table. Do not edit.

  Note: The _EventTag table replaces the previous EventTag table. New views named EventTag now provide backward-compatibly.