Activating OPC UA® Client

To activate OPC UA® Client, proceed as follows: 

  • Log in to the WBM. 

Return to topicHow do I get to the WBM again? Click here for more information... 

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: https://192.168.1.10/wbm.

For further information, see WBM.

  • Open the System services page (System → System services) in the WBM. 
  • Activate the toggle switch of the OPC UA Client .
  • Click the SAVE PAGE & RESTART button. 

Note:

  • You have to make some settings in the OPC UA Server.
  • 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 Technology ‑ Info Center.

The OPC UA® Client supports the "Minimum UA Client Profile". 

  • Open PLCnext Engineer and enter all the required information on the OPC UA tab.
    Attention: The configuration of the OPC UA client connection requires the server password to be entered in plain text.

 

  • Log in to the WBM again and open the Identity Store and the Trust Store (Security → Certificate management) to check the OPC UA Client certificates and configure them accordingly.
Trust Stores: OPC UA Client section
Identity Stores: OPC UA Client section (self-signed and 'Application Instance Certificate')

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

 

 

• Published/reviewed: 2025-06-27 • Revision 018 •