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Concept

Concept


Products: Enterprise Central, Enterprise Server, Esmi Sense FDP
Functionalities: Alarms
12/2/2024

Variable Status Alarms

The variable status alarm monitors the status of a variable. The alarm is triggered when the value of the monitored variable is either forced, overridden or offline. If you configure the alarm to trigger on all statuses, the alarm is triggered immediately when the variable changes to one of the statuses.

The override status indicates that the value of a variable is adjusted by the I/O hardware, and is not the measured value.

The force status indicates that the value of a variable is adjusted by the software, and is not the measured value. For more information, see Force and Unforce Buttons .

The offline status indicates that the status of the monitored variable is offline.

For example, you can use the variable status alarm to get a notification when a technician overrides the variable on an I/O module.

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

Monitored Value in Alarms Pane or Alarm View

The Value at change column, in the Alarms pane or Alarm View, displays the value of the monitored variable when the alarm changed state. For a variable status alarm, the Value at change column displays the status of the monitored variable:

  • (Blank: Neither forced, overridden, nor offline)

  • Forced

  • Overridden

  • Offline

  • Any combination of forced, overridden, and offline

  • Alarm Types
  • Alarms Overview
  • Alarm Functions
  • Variable Status Alarm Properties – Basic Tab
  • Creating a Variable Status Alarm
  • Alarms Pane and Alarm View Customization