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Concept

Concept


Products: Enterprise Central, Enterprise Server, Esmi Sense FDP
Functionalities: Alarms
12/3/2024

Change of State Alarms

The change of state alarm monitors the state changes of digital variables. You configure the alarm ​to trigger when the variable changes its state to true or to false.

 
action_zoom_plus_stroke Change of state alarm when the monitored variable goes true
Figure: Change of state alarm when the monitored variable goes true
 
action_zoom_plus_stroke Change of state alarm when the monitored variable goes false
Figure: Change of state alarm when the monitored variable goes false

For example, you set up a change of state alarm that monitors a ventilation fan. If the fan breaks or stops working, the alarm is triggered.

You can configure the change of state alarms using shunt variable and time delay. For more information, see Alarm Functions .

See Also

  • Alarm Types
  • Alarms Overview
  • Alarm Functions
  • Change of State Alarm Properties – Basic Tab
  • Creating a Change of State Alarm