Configure historical logging

You need to perform three main tasks to configure historical logging for an InTouch application:

• Configure tags for historical logging

• Configure general logging properties for the InTouch application

  • Configure properties for storing tag values in InTouch historical log files and/or

  • Configure properties for storing tag values in a Historian server

• Optionally, set the historical logging frequency

  Note: You can configure logging to LGH files and/or the Historian server.

Redundant Historian support

If you configure historical logging in InTouch and also specify Historian partner in Operations Control Management Console then the Historian Client automatically detects and selects the online Historian from the redundant pair. The AppEngine automatically sends data to both the primary Historian and the specified partner. If one of the historians goes offline, the AppEngine stores the historized data until the Historian comes back online. After the connection is restored, the AppEngine forwards the data to the Historian that was offline. For more information on how to configure Historian partner see Use a redundant Historian.