Events

Events provide notification of occurrences within a Plant SCADA system that do not require any action to be taken. Examples of such occurrences could include a particular user logging on, or an alarm being acknowledged.

The events that are generated by a Plant SCADA system are grouped according to the following classifications:

• Action — events that log an action performed on an alarm by an operator

• <Alarm Type> — events associated with a particular type of alarm (for example, ON, OFF and ACK transitions)

• System — events that represent an occurrence that affects the entire system, such as the server being stopped and restarted

• Configuration — events that occur when configuration changes are loaded (for example, alarm tags being added or removed)

• Comment — events that indicate when a user adds a comment to the sequence of events (see Add a Comment to the SOE Page)

• Interface Events — events that indicate when a user adds an event to the sequence of events (see Add an Event to the SOE Page).

Events can be viewed at runtime via the Sequence of Events (SOE) page (see Alarm Pages).

Note: Plant SCADA also supports triggering events that allow you to initiate a particular action when a specified set of circumstances occurs. For more information on this type of event, see Triggering Events.