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  9. Install 2019.2 but opcda doesn t works anymore in delphi

Install 2019.2 but opcda doesn t works anymore in delphi

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09 Nov 2020 12:13 #9104 by support
Replied by support on topic Install 2019.2 but opcda doesn t works anymore in delphi
Regarding the empty choice in License manager, that has a clear reason. You need to manually create a corresponding registry key, see opclabs.doc-that.com/files/onlinedocs/QuickOpc/Latest/User%2...bframe.html#License_Store.html .

Regarding "Subscribe Doesn t works", you need to describe the steps taken and the observed behavior, see www.opclabs.com/forum/announcements12/2365-rules-for-forum-posts .

Regards

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09 Nov 2020 10:21 #9103 by alr1976
Replied by alr1976 on topic Install 2019.2 but opcda doesn t works anymore in delphi
Hi!

ReadValue works
WriteValue Works
Subscribe Doesn t works
I can t insert License (see image)

Br,Alessandro
Attachments:

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09 Nov 2020 09:51 #9102 by support
Replied by support on topic Install 2019.2 but opcda doesn t works anymore in delphi
Hello,
What error or symptoms are you getting now?

Regards

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09 Nov 2020 08:54 #9101 by alr1976
Replied by alr1976 on topic Install 2019.2 but opcda doesn t works anymore in delphi
Hi!

I followed your instruction but doesn t works...... I do a bat file:

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


But it doesn t works

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06 Nov 2020 11:22 #9092 by support
Replied by support on topic Install 2019.2 but opcda doesn t works anymore in delphi
Yes, I wrote before that the installer for QuickOPC 2020.2 won't run on Windows 7. There might be some tricks to make it think it is on Windows 10. But instead of going that way, just install QuickOPC 2020.2 on some supported systems, and then take the files from there and follow the steps for Application Deployment (see corresponding chapter in the documentation), mainly:

- opclabs.doc-that.com/files/onlinedocs/QuickOpc/Latest/User%2...ml#Application_Deployment.html

- opclabs.doc-that.com/files/onlinedocs/QuickOpc/Latest/User%2....html#Assemblies%20(.NET).html
- opclabs.doc-that.com/files/onlinedocs/QuickOpc/Latest/User%2...%20and%20Type%20Libraries.html

(i.e. copy the assemblies and use RegAsm to register them for COM interop).

Regards

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06 Nov 2020 11:11 #9091 by alr1976
Replied by alr1976 on topic Install 2019.2 but opcda doesn t works anymore in delphi
Hi!

sorry my mistake.

i can t install 2020.2 on Windows 7. It possible to install it ? How?

Attachments:

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06 Nov 2020 09:47 #9090 by support
Replied by support on topic Install 2019.2 but opcda doesn t works anymore in delphi
OK.
Still, please also install support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads .

And, if you want to try to run with QuickOPC 2020.2, have you rebuilt your app with units regenerated with type libraries from Quick OPC 2020.2? Taking an app comppiled with units generated from older type libraries won't work.

Regards

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06 Nov 2020 08:09 #9087 by alr1976
Replied by alr1976 on topic Install 2019.2 but opcda doesn t works anymore in delphi
Hi!

i wrote wrong path. Correct path is:

C:\Program Files (x86)\OPC Labs QuickOPC 2020.2\Redist

Br,Alessandro

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06 Nov 2020 07:43 #9086 by support
Replied by support on topic Install 2019.2 but opcda doesn t works anymore in delphi
Now we are getting into precisely the situation we want to avoid, by not supporting some systems. If it does not work, you may end up on your own. But I will try.

You are installing a redistributable from QuickOPC 2019.2 and using it with 2020.2. I tmight be different. So first thing to do is to use the one for 2020.2 with 20202.
As an additional undocumented step, please also install this: support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads (because the link in the product/documentation might be incorrect).

Regards

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06 Nov 2020 07:39 #9085 by alr1976
Replied by alr1976 on topic Install 2019.2 but opcda doesn t works anymore in delphi
1)Redistributable:

redistributable material that you may need for production deployments.
Please refer to "Application Deployment" chapter in "Concepts" document for details.(C:\Program Files (x86)\OPC Labs QuickOPC 2019.2\Redist).

2)I compile In Delphi your Demo and run it on Windows 7 but doesn't start

2)Last Version 2020.2

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  1. Forum
  3. Discussions
  5. QuickOPC-Classic in COM
  7. Reading, Writing, Subscriptions, Property Access
  9. Install 2019.2 but opcda doesn t works anymore in delphi
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