Working with the Tag Names List

The Tag Names List is specific to the Wonderware Historian driver - it is only available on systems on which that driver is installed. Use the Display Tag Names pick action to display the Tag Names List for a particular Wonderware Historian database item. The List contains information about the tag names of points and accumulators that are configured to have their historic data exported to that particular Wonderware Historian. (Tags only exist for points and accumulators for which historic data has been added to Geo SCADA Expert's historian since those points and accumulators were configured to have their historic data exported to the Wonderware Historian.)

The List is particularly useful when points or accumulators have been renamed or moved in the Geo SCADA Expert database, resulting in their names no longer matching the tag names in Wonderware Historian.

As with other Lists, the Tag Names List consists of rows and columns. Each row represents an individual tag entry, and each column contains information about a specific value associated with that tag.

The Tag Names List contains these column headings:

As with other Lists, you can right-click on an entry in the List to display a context-sensitive menu (see Work with Common List Options).

If you want another application to query this data (for example, by using the Automation Interface), set it to query the CHCALTagNames table. The table is a Query Processor only table. The database Schema provides more information about this table.

Further Information

Wonderware Historian Tags.


Disclaimer

Geo SCADA Expert 2020