Historian Manager API

The Historian Manager is a service that runs in the VTScada layer. It contains two public functions that can be accessed by your VTScada application. Note that script applications, which are not based on the VTScada layer, will not have access to these items.

  The GetLog function has been marked as deprecated. All legacy code using that function should be updated to use the Historian functions instead.

Data logging is done through the use of the WriteHistory function. Later retrieval of that data is done using the GetTagHistory function.