Configure a deadband action
- Last UpdatedDec 12, 2025
- 2 minute read
Important: Deadband actions are no longer supported. Any configured deadband actions are ignored.
To configure a deadband action
-
In the Action Type list, select Deadband.

-
To add one or more tags for which to set a new deadband, click Add. The Tag Finder dialog box appears, in which you can query the database for tags. For more information, see Use the tag finder.Select a tag in the Tag List list, and then click Properties. The Deadband Properties dialog box appears.

-
Configure the appropriate deadbands for the tag.
Apply Time Deadband
The minimum time, in milliseconds, between stored values for a single tag. Any value changes that occur within the time deadband are not stored. The time deadband applies to delta storage only. A time deadband of 0 indicates that the system will store the value of the tag each time it changes.
Apply Value Deadband
The percentage of the difference between the minimum and maximum engineering units for the tag. Any data values that change less than the specified deadband are not stored. The value deadband applies to delta storage only. A value of 0 indicates that a value deadband will not be applied. The value deadband applies only to analog tags.
-
Click OK. The changes appear in the Tag List window.
-
To delete a tag from the Tag List window, select the tag and then click Delete.
-
(Optional) In the Post Detector Delay box, type the amount of time, in milliseconds, that must elapse after an event is detected before the event action can be executed.
Note: If the tag list contains a tag that is deleted from the Runtime database, then the word "Deleted" appears as the tag type for the tag.