How to set the OPC source timestamp with writeValue()?

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Martin Kosch
Martin Kosch 2020-3-30
回答： Martin Kosch 2020-5-19
Dear MATLAB community,
I am currently trying to establish a connection between MATLAB's OPC toolbox and a python OPC-UA server (aysncua). When manipulating variables on the server, it is very helpful to provide the local UTC time of the client as a source timestamp.
Apparently, MATLAB does not send a source timestamp when using writeValue(uaClient, node, value), as can be seen in Wireshark:
I tried various things and studied the docs but could not find advice on how to send the current system time. Can anybody give me a hint?

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Martin Kosch
Martin Kosch 2020-5-19
I found the solution myself: It was no MATLAB issue. Instead, the FreeOpcUa python server I am using does not support setting time stamps.

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