Description
You want to use Tag Chart of the WinCC/CAS Web Viewer to export tags as a table.
If you use six or more tags, export does not work. If you use less tags, export works.

The reason for this is a restriction of the MS Internet Explorer. This only supports a maximum URL length of 2KB.
(Tag Chart transfers the export request via URL. Approx. 6 tags and more exceed the maximum URL length of 2KB.
Information from Microsoft is available at the following link: http://support.microsoft.com/kb/208427/en.)

Remedy

• Use less than 6 tags or
• Use a browser that supports URL lengths >2KB.

Keywords
WinCC/Central Archive Server, Export tags, Tag export, Web Viewer