Trigger - Rising Edge (Once)

Groups can execute only when the trigger is increasing in value. This is known as a rising edge trigger and it will only execute once and will not execute again until the trigger repeats the same cycle.

To execute the group only on the rising edge

  1. Create a standard transaction group with any number of tags as long as one of them is a boolean tag that will serve at the trigger for the group.

  2. S et the Write Target for the boolean tag to Read-only by selecting read-only from its drop down in the Target Name column.

  3. Go to the Trigger tab and select the check box to Execute this group on a trigger. Select the boolean tag from the drop down menu and select to have the group only execute once while the trigger is active.

  4. Save the transaction group to start the group.

Trigger – Rising Edge (Once)

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