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Install 2019.2 but opcda doesn t works anymore in delphi

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13 Nov 2020 08:26 #9139 by support
Unfortunately not. But I do not think the problem is in the installation.
It would be best to accept the fact the QuickOPC 2020.2 isn't for WIndows 7.

Best regards

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12 Nov 2020 11:21 #9135 by alr1976
Hi!

it possible to have 2020.2 redistributable version that install in Windows 7? It is easy from your side so i can check it if it works.

Br,Alessandro

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12 Nov 2020 09:59 #9134 by support
Thank you for the information. So the VBScript has the same problem as Delphi, which means all COM tools are probably affected.
Unfortunately, in this situation (attempting to make QuickOPC 2020.2 work on Windows 7), I cannot help you any further, because it is both unsupported and there are no further ideas or workarounds.

I went through this forum thread, and noticed that originally, what you were trying to do was to run QuickOPC version 2019.2 on Windows 10 version 2004. So, that's quite an opposite of what we are working on now. So, it is not clear to me what it is that you actually want to achieve. And, on 5 Nov (post #9080), for QuickOPC 2019.2 on Windows 10 version 2004, I have recommended to disable the prerequisites boxing, but received no information from you about what the outcome was. So, this part is not clear to me either.

Regards

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11 Nov 2020 16:07 #9129 by alr1976
Hi!

Works with cscript 64 bit but i have same result than delphi.

i got subscribing...but nothing happened.

I got this problem also with old versions that delphi app doesn t works and after that i reinstalled many times pc it worked but i need to solve this problem because i can t install industrial pc without internet connection....

Br,Alessandro

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11 Nov 2020 14:14 #9127 by support
OK this is just because 64-bit CSCRIPT gets used instead of 32-bit one, or vice versa.

Try using C:\Windows\SYSWOW64\cscript.exe ; if that does not work, try C:\WIndows\System32\cscript.exe .

Regards

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11 Nov 2020 08:24 #9123 by alr1976
Hi!

I got ActiveX error.

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10 Nov 2020 12:02 #9114 by support
Thank you for more information.
The steps you have described seem OK.

Can you try the same example from other COM tool - namely, VBScript, because it's so easy to do:

1. In command line prompt, change to the <QuickOPC installation directory>\Examples-COM\VBScript\WSH\UADocExamples\_EasyUAClient
2. Enter:

cscript SubscribeDataChange.Main.vbs


Thank you

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10 Nov 2020 10:40 #9112 by alr1976
Hi!

It seem that only delphi app doesn t works.....

i have tried your .net demo and it works (EasyOpcUADemo,ConnectivityExplorer) on Windows 7

Br,Alessandro

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10 Nov 2020 10:35 #9111 by alr1976

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09 Nov 2020 12:52 #9105 by alr1976
Hi!

these are my steps:

Install windows 7
install .net last version 4.8(check that 4.72 was installed)

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe Opclabs.baselib.dll /codebase
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe OpcLabs.BaseLibForms.dll /codebase
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe OpcLabs.EasyOpcClassic.dll /codebase
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe OpcLabs.EasyOpcForms.dll /codebase
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe OpcLabs.EasyOpcUA.dll /codebase


i have compiled(2020.2 version) your Delphi demo uadocexample.

run uadocexample on windows 7 pc

option 1
option 25

i don t have any data.....




tried same steps in windows 10 workd

copied uadocexample in windows 7 pc
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