ASCII

The ASCII instruction returns the ASCII code for characters in strings.
Languages supported: Function block diagram, ladder diagram, structured text.
This instruction applies to the Micro810, L20E, L50E, and L70E controllers.
ASCII
ASCII
ASCII parameters
Parameter
Parameter Type
Data Type
Description
EN
Input
BOOL
Instruction enable.
  • TRUE: Display the ASCII code for characters.
  • FALSE: No display operation.
Applies to ladder diagram programs.
IN
Input
STRING
Any non-empty string.
Pos
Input
DINT
Position of the selected character in set [1.. len] (len is the length of the IN string).
ASCII
Output
DINT
ASCII code of the selected character (in set [0 .. 255]) yields 0 is Pos is out of the string.
ENO
Output
BOOL
Enable output.
Applies to ladder diagram programs.

ASCII examples

ASCII function block diagram example
ASCII function block diagram example
ASCII ladder diagram example
ASCII ladder diagram example
ASCII structured text example
ASCII structured text example
(* ST Equivalence: *)

FirstChr := ASCII (message, 1);

(* FirstChr is the ASCII code of the first character of the string *)
Results
Results
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Normal