My username and password are required to connect to the OPC UA server however I can’t remember what they are and don’t know how to check what my username is. Is there any way to find out my username and reset my password?

I’ve just tested it. The only change I made in the UaCsConfig.uacfg was enabling OPC UA (the same as you did). To change and watch variables in the ladder program, your user needs to have the BR_Engineer role. [image]

Hello, Do you mean an OPC UA server on a B&R PLC? Do you have a source project? You can check the username in the User Configuration file.

Hello, I’m actually just trying to run a test simulation as I’m only starting out with AS6. I’ve found the username and password but I think it might be a different one. This is the prompt I’m getting: [image]

Apologies, I have gotten the right username and password but now I’m getting the following message when I enter them: [image]

This is what it is showing me [image]

This is my most recent error message, I have been able to login with the username and password but now it says this [image]

Ah, yes that seems to have worked, thanks for your help

Username and Password

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pavel.vavra (Pavel Vavra) July 8, 2026, 10:11am 5

I can see the Monitor activated with the ladder program. Check ARSim monitoring - “Connection to OPC UA server not possible”. What is the configuration of the OPC UA C/S in your project?

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Username and Password

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