The Activation History view is a static view of
historical alarms and their corresponding events. It shows up to 1000 alarm
icons for the time span presented and according to when the alarms became
active. This view presents an icon for only the following alarm state
change events:
Note
The icons in Activation History view act only as placeholders for when an event occurred; they represent no actual state information.
When you switch to Activation History view, the background of the
Timeline Chart region changes color and displays the
image. This view can be
particularly helpful during an operator shift change.