Can't find PLC Online. AS 4.9

Again some tips from our conversational help:


To resolve the issue where the B&R Upgrades Service fails to start and you receive a Windows error 3 stating “the system cannot find the path specified,” follow these steps:

  1. Check Service Path:
  • Open the Windows Services management console by pressing Win + R, typing services.msc, and pressing Enter.
  • Locate the B&R Upgrades Service (specific to your Automation Studio version, e.g., AS412).
  • Right-click on the service and select Properties.
  • In the General tab, check the Path to executable. Ensure that the path specified is correct and that the executable file exists at that location.
  1. Correct the Service Path:
  • If the path is incorrect or the executable is missing, you may need to reinstall the B&R Upgrades Service or correct the path manually.
  • Navigate to the installation directory of Automation Studio and verify the presence of the upgrade service executable.
  1. Check for Missing Files:
  • Ensure that all necessary files for the upgrade service are present in the installation directory. Missing files can cause the service to fail to start.
  1. Run as Administrator:
  • Ensure that you have the necessary permissions to start the service. Right-click on the Automation Studio shortcut and select Run as administrator.
  1. Check System Updates:
  • Ensure that your Windows system is up to date. Sometimes, missing system updates can cause services to fail.
  1. Review Event Viewer Logs:
  • Open the Event Viewer by pressing Win + R, typing eventvwr, and pressing Enter.
  • Navigate to Windows Logs > System and look for any error messages related to the B&R Upgrades Service. This can provide more detailed information about why the service is failing to start.

By following these steps, you should be able to resolve the issue with the B&R Upgrades Service and successfully start it to install upgrades in Automation Studio. If the problem persists, consider reaching out to B&R support for further assistance.

Further Information:

1 Like