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- Error "Class not registered"
Error "Class not registered"
Although I cannot yet know the precise reason to the detail, I think we can safely conclude that the problem is with 64-bit registration of the DeltaV OPC Server, or OPCEnum. All other clients you have tried run as 32-bit processes and that's why they work.
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I have compiled the application for x86, I'm confused, I thought I had already tried to compile my application for x86 but I only tried with the option AnyCpu.
Thanks
Luca Astolfi
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I've already tried with the ClassID instead of the ProgID, but it does not work, there is a possibility for logging actions. NET library?
thanks
Best Regards
Luca Astolfi
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In order:
No, there isn't a way for install to you DeltaV Ericson.
No, I haven't try with other computer becouse i can't access phisically on the machine.
progrid and classID
The question of "machine name" is really strange, with EasyOPCDADemo.exe (com version) I'm able to connect only if i leave the "machine name" empty,but if I use "localhost" or the Netbios Name I receive the same error "Class not registred"
I can browse the OPC servers with EasyOpcNetDemo.exe (see attachment:1) but when i try to read an item or make a browse of tag I have received the same error "Class not registred"
I reinstall the core components.... but still not work.
There is an other way of support ( phone or email) ?
Thanks for all
Best regards
Luca Astolfi
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Is there any way we can obtain and install the DeltaV server to test it out here? (probably not... just asking).
Have you tried this on more than one computer, and if so, what were results?
What is the ProgID you are using to connect to the server?
Are you using an empty string in place of "machine name" when referring to the local computer, ro are you using something different (such as "localhost")?
From the .NET-based demo app, are you able to browse the OPC servers including the DeltaV server? What kind of information does it display for it?
I still suspect that there may be relation to 64-bits, although you seem to indicate to the contrary. Can you please reinstall the latest *64-bit* OPC Core redistributables, from www.opcfoundation.org/DownloadFile.aspx?CM=3&RI=821&CN=KEY&CI=286&CU=12 ?
Thank you
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Windows 7 64 bit Pro SP1
OPC server is Local
I have tried to compile my application for 64 bit and also for x86 but not work, my application use:
Imports OpcLabs.EasyOpc.DataAccess
Imports OpcLabs.EasyOpc
And these classes:
EasyDAClient()
ServerDescriptor()
DAItemGroupArguments()
DAGroupParameters()
DAItemDescriptor()
My application is configured for polling and datachange but any combination of these method not work.
I have tried also to connect with EasyOpcNetDemo.exe but not work
if you need other information, all you have to do is ask.
Thanks
Best Regards
Luca Astolfi
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- Error "Class not registered"