Learn about additional data source parameters

On the data source configuration page, you can define the start-up parameters which are either mandatory or do not have a suitable default. After saving the configuration page, the parameters are stored in:

%PIHOME64%\Connectors\OpcUa\Configuration\Datasource.config.json

The following additional start-up parameters have a suitable default, which means that they do not need to be published on the configuration page, but can be modified manually.

HAScanTime

Optional: Mostly applicable for OPC UA wrappers with underlying "classic" HDA OPC servers. Variables, which only have historical data, must be polled. The parameter allows for specifying the polling period (in seconds). The default value is 60 seconds.

When 0 is specified, variables with only historical data will be ignored.

HistoryRecoverySupport

Optional: Allows for turning off the history recovery. The default value is true.

Note: The connector needs to be restarted to activate the manually modified parameters.