Setting DataSource when reading values through Python - by: jihaekor

Hello,

I was looking for a way to set the datasource to 'device' using a Python implementation of QuickOPC, but I could not find a good way of getting this to work even after searching through the documentation. I see that there is a DAReadParameters class, but I was unable to figure out how to use the class through the Python COM implementation.

Below is a quick excerpt of the code that I have:



I was hoping to either add arguments to the dispatched client, or to the ReadItemValue function to achieve this. Is this something that can be done?

Thanks,
John