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  9. Python code (error 'invalid class string')

Python code (error 'invalid class string')

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21 Nov 2023 13:41 #12404 by support
Replied by support on topic Python code (error 'invalid class string')
Note: QuickOPC now supports Python in much better way, cleaner syntax, and public packages (pypi.org/project/opclabs-quickopc/) on Python Package Index . See What's new in QuickOPC 2023.2 for more information. And, over 270 examples are available in the User's Guide!

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29 Nov 2016 17:57 #4608 by support
Replied by support on topic Python code (error 'invalid class string')
Hello,
cam you please answer following:

1. Which of our examples are you running (please state the file name)? Or, if you are running something code from the Web, or if you have made any changes, please post the whole code here.

2. Please specify which line of code gives the error.

3. Which choices have you made during installation - specifically, on the wizard dashboard page, have you kept the default choice, or have you selected something else?

Thank you

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29 Nov 2016 17:35 #4607 by support
Python code (error 'invalid class string') was created by support
From: OPC Labs Contact Form - L.
Sent: Tuesday, November 29, 2016 1:52 PM
...
hi,

I run your example in python and get an error 'invalid class string'.

please can you explain what i need to do to connect to the OPC server as in your python example.

Thanks

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  9. Python code (error 'invalid class string')
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