This test client application is part of the Advosol OPCDA.NET client development component product.
It is provided in the uaPLUS distribution.

With the UA Option for OPCDA.NET client applications can access UA server through the same API as classic OPC DA servers.
The test client therefore can be used to test the access of OPC DA and OPC UA servers.
The server type is determined from the server ID.

• For OPC DA servers the server ID is a DCOM ProgID, e.g. Advosol.SimDAServer.1
• For OPC UA servers the server ID is ua:url, e.g. ua:http://localhost:80/Advosol/uaPLUS
  

If a user identification is required for the UA server access then the Id and password can be defined in the Credentials dialog. They are used when the server is connected.

Detailed error reporting is not possible through the OPC DA compliant API. For UA error reporting the client application can define an error callback handler. The test client does this and displays error and trace information in a window. The Window is automatically opened on the first message and stays open. The Window can be closed when the messages are not of interest.