Modelling method with optional input arguments

Questions regarding the use of UaModeler

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thowafs
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Joined: 09 Nov 2017, 00:30

Modelling method with optional input arguments

Post by thowafs »

Hello,

is it possible to specify if input arguments of methods are mandatory (must not be null) or optional (can be null)?

We have created a method with an input argument of type UInt32. It should be possible to call this method by a client with null as argument, but the code generation for the c++-server-stack is checking for non-null and returns BadOutOfRange.

Sincerely yours.

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Support Team
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Joined: 18 Mar 2011, 15:09

Re: Modelling method with optional input arguments

Post by Support Team »

Hello,

In OPC UA all method arguments are mandatory. If you want to use optional method arguments, you have to update the generated code manually.
Best regards
Unified Automation Support Team

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