Dynamic Nodes added by client

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glynjones
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Joined: 26 Jul 2017, 15:03

Dynamic Nodes added by client

Post by glynjones »

I'm new to OPC and UA in general.
If I understand the documentation correctly, the server defines the nodes in the system at startup, and clients can find out details about the nodes from the server.
Is it possible to allow clients to "register" themselves with the server so nodes become available dynamically as different parts of a distributed system start up?
I'm assuming that a client would need to re-read the directory to discover new nodes added in this way.
Apologies if this is covered in the OPC documentation or API reference, but I haven't been able to find it.
Thanks.

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Support Team
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Re: Dynamic Nodes added by client

Post by Support Team »

OPC UA defines ModelChangeEvents a client can register (subscribe) for. This is done by UaExpert.

But a server has to send ModelChangeEvents when he is changing the address space.
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Unified Automation Support Team

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