I had a trial license of 30 days Visual Components premium 4.1. I had to test the PLC connectivity between Visual Components and Twincat 3. I went through the academy lessons for PLC connectivity with local PLC and OPC-Ua server. Unfortunately Beckhoff ads did not show after running Twincat 3 version 3.1.4022.29. The OPC-UA connectivity was successful but the variables defined in Twincat 3 was not showing in Visual Components. I tried both versions of Visual studio 2013 and 2015 but did not work. Is there a add on for Beckhoff ads? Since i have write the report kindly let me know what could be the possible reason for beckhoff ads not showing. Kindly check the attached files.