Hello, After using the help files to migrate my AsOpcUac library from AS 4.12 to AS 6.0, I was able to transfer the application to the target. However, the UA_MonitoredItemAddList function block gives me an error code 2952790020 for invalid variable names. The variable names did not changed and the…

Hello, Starting from AR6, specifying the NodeQualityID is mandatory. If it is not provided, the error UA_Bad_VariableNameInvalid occurs. [image]

Hello, Are those variables local or global? Local variables are specified without a task name in the AS6 OpcUa_Sample. [image] Are those variables used in the code? Couldn’t it be somehow connected to this post ?

Hello @Phong_Vo , Maybe this will help you: [image] How to implement batch OPC UA subscriptions in AS6 How-To & Wikis Background — Why the Change Was Made If you are migrating a project from Automation Studio 4 to AS6 and you use OPC UA subscriptions, you will …

Specifying the NodeQualityID solved my problem. Thank you. [Screenshot 2026-03-24 104007]

Dear Pavel, With the suggested solution of providing NodeQualityID, i was also able to fix the variable issue. [image] UA_MonitoredItemAddList function block error code 2952790020 after migrating from AS 4.12 to AS 6.5 B&R Software & Runtime Hello, After usi…

UA_MonitoredItemAddList function block error code 2952790020 after migrating from AS 4.12 to AS 6.5

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pavel.vavra (Pavel Vavra) March 24, 2026, 5:03am 2

Hello,

Are those variables local or global? Local variables are specified without a task name in the AS6 OpcUa_Sample.

Are those variables used in the code? Couldn’t it be somehow connected to this post?

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UA_MonitoredItemAddList function block error code 2952790020 after migrating from AS 4.12 to AS 6.5

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