StrLenA (FUN)

FUNCTION StrLenA : DINT

This function determines the length of a string by searching for a terminating zero character. The function will do its work either with native IEC-Strings or with strings coming from external functions. It will return -1 if the given pointer to String is equal NULL

InOut:

Scope	Name	Type	Comment
Return	StrLenA	DINT
Input	pstData	CharBufferPtr	simply a pointer to byte