Activating software updates 

Central software updates will be possible via the Device and Update Management Service. You must first activate the service on the System Services page in the WBM.

  • 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 checkboxes of the OPC UA Server and the Software Update via Device and Update Management. 
  • Click the Apply and reboot button. 

After the PLCnext Control has rebooted, you must enable the port range to be able to communicate with the PROFINET® devices). To do this, proceed as follows:

  • Open the Firewall page (SecurityFirewall) in the WBM. 
  • Open the Basic Configuration tab. 
  • In the Basic Rules section, select Continue from the drop-down list for OPC UA ports in the Action column. 
  • Click the Apply button.
  • Open the User Configuration tab. 
  • On the Input Rules tab,  add a new rule via the .
  • Provide the following information:
    • Select the interface.
    • Select the protocol.
    • Enter the IP address range. 
    • Enter the target port 4840.
    • Select the action Accept.
  • Click the Apply button.



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