In WinCC OA 3.17 we have replaced WebKit with WebEngine with the upgrade to QT 5.12.
WinCC OA 3.16 does not use WebEngine.

You can probably test if the application works in 3.17 with the new QT version.

Best Regards
Leopold Knipp
Senior Support Specialist

In standard configuration the WinCC OA drivers do a general query during a redundancy switch.
With the config entry autoGQ you can define when the drivers shall do a general query. For details please have a look at the WinCC OA Documentation.

Best Regards
Leopold Knipp
Senior Support Specialist

We have tested it on 3 computers and we cannot see a similar behaviour.
A comparison to 3.16 did not show a difference.

Which operating system are you using?
Which kind of hardware is used?
Is it a native system or a virtual machine?

Best Regards
Leopold Knipp
Senior Support Specialist

You can possibly use the following approach:
-- Send data (JSON format including timestamp information) from WinCC OA to your JavaScript application
-- Check how the timestamp is formatted
-- Use the same format when sending data to WinCC OA

Best Regards
Leopold Knipp
Senior Support Specialist

If you have the permissions you can download WinCC OA in the "Download" section in the WinCC OA Portal. According to your user settings you do not have the required permissions. Please get in contact with your common WinCC OA sales contact to clarify if you can get access to the "Download" section. ...

If you want a module to be on top you can use the function stayOnTop() where you can define the module name.
Then you do not have to do it for every panel.

Best Regards
Leopold Knipp
Senior Support Specialist

Thanks for the information.
I tested it and I can reproduce the problem.

Best Regards
Leopold Knipp
Senior Support Specialist

Which WinCC OA version and patch level are you using?
Do you want to receive from or send values to the MQTT broker in that case?

Best Regards
Leopold Knipp
Senior Support Specialist

The WinCC OA drivers do not change the transfer mode depending on the values received from the PLC. If you have the values archived it looks like they have been send by the PLC. Please take into account that an old/new comparison for float values does not make sense if the precision is not limited. ...

If this log message occurs the system does not try to copy automatically data from the backup device to the project database. The log message has nothing do with the accessibility of the backup device. If the project is not stopped properly the Data Manager detects during startup that the database w...