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- Forum
- Discussions
- QuickOPC-Classic in .NET
- Browsing, Browse Dialogs and Controls
- BrowseBranchesWeb Timeout Exception
BrowseBranchesWeb Timeout Exception
Best
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With the repro, I was able to make a fix that works for me.
Please download a new build (5.59.1147.1) from the same location, and rebuild with the updated assemblies.
Best regards
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Thank you so much for your ongoing assistance with this case. Please let me know if there is anything I can test.
drive.google.com/file/d/1X-exkZn1-8kcuawkwlwFZ6PaDP5MfsPs/view?usp=sharing
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I have made a change that removes the problematic piece of code it from BrowseNodes. There is a chance (just a chance) that it will fix the problem.
Please download this special build (5.59.1044.1) from www.opclabs.com/files/transient/20210128/OPC%20Data%20Client-2020.3-Windows-Full.exe , and retest with it (please be absolutely sure that you are referencing the assemblies from the new build).
Thank you
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5. No, there is only one instance of the OPC Server Kit running
6. Yes, WebApplication1 and AutoRefreshWeb both work.
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this is quite difficult without a repro on my side. I have some questions (it is OK just to try it on your side, no need to know it from the customer).
4. I assume that the problem is only with Web apps: On the same computer, does browsing OPC DA nodes work from the desktop demo apps etc.?
5. Don't you get multiple instance of the OPC server running (check in Task Manager) : need to display processes "from all users" - isn't there the server ("opcrtkit") listed more than once?
6. I understand that BrowseServers works OK, and browsing for branches does not. What about other operations, such as Reads? There is Web demo project for it as well - does it work?
Thank you
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1. 5.59.492.1
2. It takes approx. 60 seconds before timeout error
3. Yes, using IISExpress
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1. I am using 5.59.492.1.
2. There is a perceivable delay. The screen does not load, a few minutes pass, then the timeout error occurs.
3. I am also using "IIS Express".
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So far I was unable to reproduce the problem.
I have some additional questions:
1. Which build of 2020.3 are you using? (I have recently delivered an update) - it should not matter but I want to use precisely the one you have.
2. Is there actually a perceivable delay (tens of seconds, or a minute or so) before the timeout error pops up, or does it appear quickly (how fast)?
3. Which Web server is being used? In my Visual studio, next to to "Debug" green arrow icon, I have "IIS Express".
Best regards
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"Timeout browsing nodes. + The client method called was 'BrowseNodes'."
The full exception details are in the attached text file.
He attempted to modify the example to extend the timeout, but received the same error.
We were able to recreate this behavior, and are seeing it with both the built-in test server and TOP Server.
Both the customer and I are able to run BrowseServersWeb with no issue.
Please let me know if there is any further information I can provide, or if you have any suggestions.
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- Forum
- Discussions
- QuickOPC-Classic in .NET
- Browsing, Browse Dialogs and Controls
- BrowseBranchesWeb Timeout Exception