Enumeration to define the data source used in the weather data reader.
type RadiationDataSource = enumeration(File "Use data from file", Input_HGloHor_HDifHor "Global horizontal and diffuse horizontal radiation from connector", Input_HDirNor_HDifHor "Direct normal and diffuse horizontal radiation from connector", Input_HDirNor_HGloHor "Direct normal and global horizontal radiation from connector");