Opc server request limitation

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glawi00s
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Opc server request limitation

Post by glawi00s »

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

Post by Support Team »

Hello,

if a server has operational limits it should provide such information in it's information model.
Root->Objects->Server->ServerCapabilities->OperationalLimits

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.
Best regards
Unified Automation Support Team

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