MLEN

Calculates the length of a message string.

Arguments
IN	IN	MESSAGE	Any message string
MLEN	NbC	DINT	Number of characters in the IN string

Example

(* FBD Program using "MLEN" Function *)

(* ST Equivalence: *)

nbchar := MLEN (complete_string);

If (nbchar < 3) Then Return;

End_if;

prefix := LEFT (complete_string, 3);

(* This program extracts the three characters on the left of the string and places the result in the prefix string variable.

Nothing is done if the string length is less than three characters. *)

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