Configure data source options

The data source settings are applied to all functions.

To configure data source options:

1. On the Historian tab, in the Publish group, click Options, and then click Options. The Options dialog box appears.

2. Click the Source tab.

3. In the Version (Legacy) area, specify what version of data should be retrieved. This setting is only relevant when retrieving data from an AVEVA Historian with a version earlier than 9.0.

   • Original: The original value as it was received from the data source (for example, the I/O Server) to the AVEVA Historian.

   • Latest: The latest value that is stored in the AVEVA Historian with the same timestamp as the original value. Multiple versions are created as the result of data inserts and updates.

4. Select the Retrieve history data from both manual and extension tables check box to retrieve data from both the manual and extension tables.

   • Manual history tables: Normal SQL Server tables that are used to store data. These are the ManualAnalogHistory and ManualDiscreteHistory tables.

   • Extension tables: Logical tables that are populated from the AVEVA Historian data files. These tables support the AVEVA Historian time domain extensions for handling data.

5. Click OK.