System Tags Folder
The System Tags folder contains predefined tags that have specific functions (time, date, acknowledge alarms, storage of the logged user, and so forth). You cannot edit or delete these tags; but you can access their values from any IWS task, copy them, and use them elsewhere.
For a list of system tags, including their properties and descriptions, see List of System Tags.
You can view the properties of a system tag using the System Tags datasheet, which contains four columns (Name, Size, Type, and Description).