Configuring historical access

To configure Historical Access, you must first set up the History Adapters. These are the different locations for storing historical data, such as RAM, file, SQL Server.

History Adapters are added to the configuration using the context menu command Add new History Adapter.

Depending on the adapter type you have to specify further parameters, e.g. the desired file storage path or the access data for the SQL Server.

After you have created a History Adapter you can add the desired variables to the adapter. These variables must already exist on the selected OPC UA Server when the engineering is implemented. You can use the integrated OPC UA Target Browser to select the variables and then add the variables from the target browser to the History Adapter by drag and drop.

Additional parameters can be specified in the properties window of the newly added variable, e.g. the desired SamplingRate or the size of the ring buffer to be used in the History Adapter.