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- QuickOPC-Classic in COM
- Installation, Deployment
- OPC Subscribing does not work on a production installation
OPC Subscribing does not work on a production installation
- m.baumgartner
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I wasn't sure it was specifically related to the full installer only.
We'll run some test with the small installer and I'll come back to you.
Thank you very much for your help. Much appreciated.
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If you are incorporating our installer into your own, you should be doing that using the smaller, "production" installer package. I have tested that one, and could not reproduce the problem.
I admit the problem exists with the "production" install type within the "full" installer, but that should not be a serious problem for you, because you are not supposed (and have no reason for) to embed the "full" installer into your installation program.
Please clarify if I understood something wrong.
Best regards
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- m.baumgartner
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It has to be transparent to the user, I cannot afford to ask the end user to execute an additional GUI installer.
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- m.baumgartner
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- Visitor
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We will look into that and fix it later.
For now, can you please work around this by re-running the Setup, and choose the "express install for COM development" instead.
Please let me know whether this has helped.
Best regards
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- m.baumgartner
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What are the symptoms in #5? Do you get some error, or is it the same as with your application, i.e. no error but also no event notification?
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- m.baumgartner
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1. Windows 10 x64
2. On the same machine (Matrikon OPC)
3. Delphi (IDE Delphi 10 Seattle)
5. This worked on the dev machine only again. Failed on the prod machine.
I guess this isn't related to my implementation then.
Tell me if you still need 4. (I don't have the app code quickly accessible right now where I am).
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can you please answer following questions?
1. Which operating system are you using on the production machine, and is it 32-bit or 64-bit?
2. Is the OPC server remote to the client, or on the same machine?
3. Which programming tool or language are you using?
4. Can you please post a skeleton of your ItemChanged event notification handler? I want to check the error handling approach.
5. Can you please take the _EasyDAClient.SubscribeItem.Main.vbs file (in the VBScript/WSH examples folder) from the development machine, place it on the production machine, modify it to connect to your OPC server & subscribe to your item, and test?
Thank you
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- Forum
- Discussions
- QuickOPC-Classic in COM
- Installation, Deployment
- OPC Subscribing does not work on a production installation