Basic Characteristics RAPID

StrOrder Checks if strings are ordered
Example
StrOrder (String Order) is used to check whether two strings are in order, according to
a specified character ordering sequence.
VAR bool le;
le := StrOrder("FIRST","SECOND",STR_UPPER);
The variable le is given the value TRUE, because "FIRST" comes before
"SECOND" in the character ordering sequence STR_UPPER.
Return value Data type: bool
Arguments
TRUE if the first string comes before the second string (Str1