Activating OPC UA Client

To activate OPC UA Client, proceed as follows: 

  • Log in to the WBM. 

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Establishing a connection to the Web-based Management (WBM):

  • Open a web browser on your computer.
  • In the address field, enter the URL https://<IP-address-of-the-controller>/wbm,
    for example:

For further information, see WBM.

  • Open the System Services page (ConfigurationSystem Services) in the WBM. 
  • Activate the OPC UA Client by its checkbox.
  • Click the Apply and reboot button. 

Note: You have to make some settings in the OPC UA Server.

The OPC UA Client supports the Minimum UA Client Profile. Currently only manual configuration is supported (configuration via PLCnext Engineer is in progress).

  • Open the Identity Store and the Trust Store (Security → Certificate Authentication) to check the OPC UA Client certificates and configure them accordingly.


Further information can be found in the OPC UA Client documentation.

Note: Your OPC UA client requires a system use notification that complies with your legal requirements. You can see an example in the User Authentication WBM topic in the main PLCnext Info Center.



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• Published/reviewed: 2023-11-02 • Revision 011 •