Get OPC UA Server Hierarchy dynamically with library AsOpcUaC

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1

Hi Everyone,

Does anyone know a way to get the object/node structure of the opc ua server with the library AsOpcUac?

Meaning…

I should be able to determine at runtime that Root has objects Aliases, Application and that Application has components active_limiter and active_pid_parameter set etc…

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The only elements known are the IP and port number of the OPC UA Server and the namespace index.

I thought about using the UA_NodeGetInfo over a defined range of NodeIds in a for loop but the FB gives me back the NodeClass but not the information if it has childs.

The returned BrowseName is also not helpful.

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Thanks in advance for the support

2

I think this is only possible with the UA_Browse function block from the new AsOpcUac library (Release 1.1), which is available with AR/AS 6.0.

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3

Thanks Corne! I will try out with the AS 6.0 Engineering Sample

4

Hi @filipe.costa, please let us known the result. :slight_smile:

5

The function block UA_browse available from AR 6.0 does exactly what I needed! Thanks @corne.geerts for the support.

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