We have a requirement to create java based opc da 3.0 client for backward compatibility. Has anyone tried using utguard for OPC DA version 3.0 As per specification for Utguard, it only supports version upto 2.0 I am trying to use J-interop for OPC DA 3.0 specification but it is time consuming. So far just able to connect to opcserver and stuck trying to read tag values