OPC Publisher gives 10 seconds delay to send telemetry from OPC UA python based server, with --si=0 and --ms=0 configuration

Vivek Sagar Pandey 386 Reputation points
2021-01-19T05:15:52.78+00:00

Hi There,

I am trying to simulate a 6 axis robot. I configured OPC Server using python freeopcua module, I exposed the nodes with the Robot's axis values. node id are ns=2,i=2 to ns=2,i=7.

I put --si=0 and --ms = 0 in container create option of the OPC publisher. But the OPCPublisher holds the data for about 10 seconds and then sends the value, although the values are changing in every 0.1 sec.

I read the OPCPublisher source code, I saw that the default time given there is 10 seconds.

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  1. Vivek Sagar Pandey 386 Reputation points
    2021-02-01T09:22:32.833+00:00

    I tried with the microsoft's Marketplace OPCPublisher module but it was not responding for the performance control options. So, I downloaded it's source code from Git-Hub (https://github.com/Azure/iot-edge-opc-publisher ). Published the code in Azure Container Registry using Visual Studio and then deploy it as a module on my Azure Edge runtime.

    It's working now with all the memory and performance control options.iot-edge-opc-publisher

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  1. Sander van de Velde 29,196 Reputation points MVP
    2021-01-19T20:41:59.097+00:00

    Can you check out which version of the OPC Publisher you are using? 2.7 or higher?

    I presume you check this and this documentation already?