HistorianTroubleshooting OPC UA HDA Server Issues
Unable to Connect to the Server
Issue: When you attempt to connect to the OPC UA HDA server from an OPC UA HDA client, a message appears, stating that you cannot connect to the server.
Diagnostics:
- Ensure that user authentication for the OPC UA HDA server is based on either user credentials or certificates. Anonymous authentication is not supported.
- If you have selected authentication based on user credentials, ensure that you have entered the correct credentials of the Historian server.
Unable to See the Latest Historian Model Changes in the OPC UA HDA Client
Issue: Changes to the Historian model are not reflected in the OPC UA HDA client.
Diagnostics:
- Ensure that you have selected the Yes, I want to use a model check box and tested that the OPC UA HDA server machine is connected with the machines on which you have installed Web-based Clients and Proficy Authentication. These settings are in the Model section in the Proficy Historian OPC UA Server Configuration window. For instructions, refer to Configure the OPC UA HDA Server Settings.
- Restart the OPC UA HDA Server service.