You can select most Historian tags as a data source, with the exception of binary object (BLOB) tags. BLOB type tags do not appear in the browse list.
After you select a Historian tag, the Edit Source dialog box appears. This dialog box lets you configure specific data source properties, including:
The time zone - see Time Zones
The start time and time span - see Time Criteria
The sampling interval - Sampling Interval
The data point interval - Data Point Interval and the Retrieval Mode
Fields to display - see Advanced items
NOTE: Default settings can be configured for each Historian data source. For more information, see Adding an iHistorian Data Source.
NOTE: In order to read data from a Historian server, you must belong to the iH Readers group.