Overview

The Historical Values (narrow) connector handles database tables where each tag is logged as a separate row in the table, that connector only accommodates one value column in the table. In some cases, there may be multiple value columns in the table from which data should be reported for every tag.

For this case, the Historical Values (narrow multi-column) connector is provided. As an illustration, consider the following table:

This table consists of a timestamp column, a tag index column and multiple data columns pertaining to the tag.

The table tblName gives the association between TagName and TagIndex for browsing purposes.