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

Question

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.

Answer 1

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

Answer 2

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?