Hi,

I was using the OPC UA Excel client with Win 10 and Excel 32bit and it was fine; Actually, my compagny has updated the system to Win 11 and Excel 64bit. I have reinstalled the excel 64x library and framework 4.7.2 and even higher but the Excel file does not work correctly. I tried also with 32bit library, but the result was the same.

I have an error at this line : tmpOpcUaClient.Connect endpoints(i), False, "", ""

Error is : "Object reference not set to an instance of an object"

Finding the endpoint(s) of the OPC UA server is OK. When debugging no "nothing" object was detected.

Any help to solve the problem please ?

Best regards,

Hello Benp_S7

I think you  are referring to

https://support.industry.siemens.com/cs/de/en/view/109748892

you can use the feedback function in the website to contact the online support.

Bye Murof

Hello,

Yes indeed, it is the good reference. Thank you I will try to contact.