| Can a Historian OPC HDA server connect to more than one Historian Server at a single time? | The Historian OPC HDA Server cannot connect to more than one Historian Server at a single time. If you want to connect to another Historian server, you must disconnect all OPC HDA clients, reconfigure the Historian OPC HDA Server, and then reconnect OPC HDA clients. |
| How do I configure Historian OPC HDA Server ? | The Historian OPC HDA Server works without configuration. By default, the Historian OPC HDA Server will connect to the default Proficy Historian Server. Optionally, you can configure Historian OPC HDA Server. For more information, see Setting up the Historian OPC HDA Server. |
| Does Historian OPC HDA Server consume a "Client Access License (CAL)" ? | No. Historian OPC HDA Server does not consume a "Client Access License (CAL)"whenever Historian OPC HDA Server connects to the Historian. |
| Can I view the Historian OPC HDA Server trace log file? | Yes. By default, the Historian OPC HDA Server trace log file is located in C:\HistorianData\LogFiles. |
| Can I turn on the debug mode to get more information in the trace log? | Yes, you can turn on the debug mode to find more information in the trace log file. For more information, see Turning On Debug Mode to Access Trace Log Files. |