I’m new to Automation Studio (using v 6.0.2.177), and I’m trying to learn to program via ARSim. I setup a test project with a Standard PC and transferred a simple program. When I click the ‘monitor’ button, I get an error of “Connection to OPC UA server not possible.”

That seems to be the fix. It’s strange that disabling OPC UA in v4.9 creates no issues, but disabling it in v6.0 causes an error. Thanks for your help. I did actually just find this explained in the help file, and does explain why a ladder program has this issue, but not a text program: “Ladder …

ARSim monitoring - "Connection to OPC UA server not possible"

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kovarj (Jaroslav Kovar) Split this topic November 12, 2025, 6:50am 6

4 posts were split to a new topic: Port conflict causing OPC UA failure

Topic		Replies	Views
Port conflict causing OPC UA failure B&R Software & Runtime opc-ua	3	71	November 10, 2025
Scene Viewer with ARSim B&R Software & Runtime automation-studio , automation-runtime	4	343	January 2, 2025
OPC-UA BadSecureChannelClosed with simulator active B&R Software & Runtime opc-ua	2	80	September 9, 2025
Does the OPC UA client work on an Arsim B&R Software & Runtime automation-runtime , opc-ua , arsim	3	279	June 11, 2024
AS6- Error Booting the OPC UA Server B&R Software & Runtime opc-ua , automation-studio-6	6	313	February 13, 2025

ARSim monitoring - "Connection to OPC UA server not possible"

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