Starting with WinCC flexible, tags can be imported as .csv file from an external data source. These tags can also originate from configuration packages for control programs by different manufacturers. The exported data has to be formatted accordingly and can then be imported into WinCC flexible. 

For the formatting of the tag data from control programs, converters are available. With the converters, tag lists of different export formats are converted into the .csv format, which can then be imported by WinCC flexible.