Is upper

IS_UPPER

Type Function	BOOL
Input STR	STRING (String input)
Output	BOOL (TRUE if STR contains only capital letters)
	IS_UPPER checks if in the string STR all capital letters are included. If an incorrect, non capital character is found the function returns FALSE. If in STR are only capital letters included, the function returns TRUE. In examining the Global Setup EXTENDED_ASCII constant is considered. If EXTENDED_ASCII = TRUE the extended ASCII character-set to be considered in accordance with ISO 8859-1. Umlauts like Ä, Ö, Ü are considered only if the global constant EXTENDED_ASCII = TRUE.