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Opc server request limitation

Unified Architecture topics related to OPC UA Specification, compliant behavior and any technical issues of OPC UA, like Security, Information Model, Companion Specs DI, PLCopen, ADI, ...

Opc server request limitation

Postby glawi00s » 06 Nov 2018, 15:56

It seems reasonable for an Opc client to ask the opc server for Request settings (e.g. Operation Timeout, MaxOperationPerRequest). Is it mandatory for a server to publish these properties? If yes, where in the namespace is it found? And where is it found in the OPC UA standard?
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Re: Opc server request limitation

Postby Support Team » 11 Jul 2019, 10:12


if a server has operational limits it should provide such information in it's information model.

If a server does not provide such nodes, the client may assume that the server has "no limits".
However, a client must be capable of handling errors on all service calls and on all operations and react properly.
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