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by leoknipp
Mon Jul 26, 2021 4:59 pm
Forum: Bugs / Problems
Topic: deleted files on a redundant system
Replies: 1
Views: 122

Re: deleted files on a redundant system

If you want to delete files from the db/wincc_oa directory you need to know exactly which files can be deleted. Otherwise, you can damage the database and the project cannot be started again. In case of a redundant system you can stop the project on server A, copy the database to server B and start ...
by leoknipp
Mon Jul 26, 2021 4:45 pm
Forum: HowTos
Topic: Audit Trail database settings
Replies: 1
Views: 175

Re: Audit Trail database settings

The _AuditTrail datapoint does not use dyn-arrays, only a few dp elements of typ "string" are defined. As the _AuditTrail elements are normally only written if a user is doing an important command (which needs to be documented) there is no need to do an optimization. Best Regards Leopold K...
by leoknipp
Fri Jul 23, 2021 2:47 pm
Forum: Bugs / Problems
Topic: Error while reading the alarm class value from DIST system
Replies: 1
Views: 201

Re: Error while reading the alarm class value from DIST system

The DP ID information does not contain the type information and therefore resolving the DP ID possibly fails. The DP ID is very high (100.082.636). Do you know which such a high ID is used? Possibly you can check in System 10 if the DP ID 100082636 can be resolved to a valid DP name. Best Regards Le...
by leoknipp
Fri Jul 23, 2021 2:39 pm
Forum: HowTos
Topic: How to reduce webView chargetime
Replies: 4
Views: 294

Re: How to reduce webView chargetime

Is there possibly a difference in the network connection between the server and the client? If you open the same URL in a browser window do you see longer loading times at the client where the Desktop UI is running? How long is the loading time if you run a Desktop UI at the server (where you have s...
by leoknipp
Tue Jul 20, 2021 2:30 pm
Forum: Bugs / Problems
Topic: [3.18] CENTOS
Replies: 1
Views: 191

Re: [3.18] CENTOS

Which operating systems are supported for a specific WinCC OA version you can find in the documentation in chapter "Installation" and the sub chapter "Software requirements". E.g. the information for WinCC OA 3.18 P002 https://www.winccoa.com/documentation/WinCCOA/3.18.2/en_US/WC...
by leoknipp
Mon Jul 19, 2021 1:32 pm
Forum: Bugs / Problems
Topic: Animations in Layouts
Replies: 3
Views: 361

Re: Animations in Layouts

I have tested in 3.18 with the same animation as in your code and I could not see a similar problem. During one of the tests I got the following log message: WCCOAui (1), 2021.07.19 13:26:35.605, CTRL, WARNING, 62/uim, Das Attribut '' konnte nicht gesetzt werden. Ort: Module: _QuickTest_ Panel: C:\W...
by leoknipp
Mon Jul 19, 2021 1:03 pm
Forum: Bugs / Problems
Topic: Dicrete alert_hdl not available for float in 3.17
Replies: 1
Views: 231

Re: Dicrete alert_hdl not available for float in 3.17

In previous version it was a bug that you can use a discrete alert handling also for DP elements of type float. This functionality has been deactivated as it may lead to performance issues in the Event Manager. In software in general a float value has a limited precision. A value comparison of float...
by leoknipp
Mon Jul 19, 2021 12:54 pm
Forum: Bugs / Problems
Topic: Export/import of historical data
Replies: 2
Views: 308

Re: Export/import of historical data

As suggested you can copy the complete DB folder to do analysis "offline". You have to ensure that the language settings of the projects are identical. Otherwise, the project with the backuped database will not start. In WinCC OA an original value can only be set with the same time as the ...
by leoknipp
Mon Jul 19, 2021 12:52 pm
Forum: Bugs / Problems
Topic: 3.18, API Driver Code, Manager::getId(xx,xy) is not working
Replies: 3
Views: 371

Re: 3.18, API Driver Code, Manager::getId(xx,xy) is not working

I am not an API specialist. Therefore, I cannot give you detailed information how to change the API code to load identification or to access datapoint elements. Why do you need to communicate to others DPs (not related to the driver)? If you do an API training (can also be made with a live session) ...
by leoknipp
Wed Jul 14, 2021 4:33 pm
Forum: Bugs / Problems
Topic: do not display when using "addSymbol"
Replies: 3
Views: 402

Re: do not display when using "addSymbol"

I have tested it.
When the BackgroundCover EWO is inserted to the panel in Gedi a button is displayed in front of the EWO.
If a reference with the EWO is also loaded using addSymbol() it covers all objects.

Best Regards
Leopold Knipp
Senior Support Specialist