Siemens Industry Online Support
Siemens AG
Entry type: FAQ Entry ID: 109765796, Entry date: 04/25/2019

Why is the Calendar Control not displayed in the WinCC/WebNavigator?

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One possible cause is that the DCF file of your project is inconsistent.

The following message appears when you call the Calendar Control: "Unable to connect to WinCC. (@LocalMachine::)"

If you open the project on a different computer and in the computer properties change the computer name in the WinCC Explorer, you get the message "Unknown error".

Delete the DCF file of the project. How to delete the DCF file and create a new one is described in Entry ID 109763043.

Additional Keywords
WebNavigator Client, Calendar Options, Calendar Scheduler, Internet Explorer, Viewer RT, Resources, .NET Control, Computer list, Computer name, Migration, Upgrade

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