About Event Attributes

Events usually also include attributes, which give greater detail to the status of the event. Attributes vary from server to server; user-defined attributes as well as vendor-defined attributes may be configured on your OPC Alarms and Events server.

Some common attributes are:

  • Start time
  • End time
  • Acknowledgement status
  • Acknowledgement time
  • Operator name
  • Data Source
  • Quality
  • Severity

Historian archives all event attributes sent to it by the OPC Alarms and Events server. Consult your OPC Alarms and Events server documentation for more information.