How can I access single characters of a STRING variable declared as ARRAY?

If you want to access single characters of a STRING variable and this variable has been declared as an array, this is possible by the following assignments:

Example

PROGRAM Test
	VAR
		vChar1, vChar2 : CHAR;
		aString : ARRAY[1..5] of STRING[10];
		AccessHelp : STRING[10];
	END_VAR
	
    vChar1 := aString[4][3];    (* accessing the 4th ARRAY element *)
 
    (* alternate access *)
	AccessHelp := aString[4];   (* 1st assignment: accessing the 4th ARRAY element *)
	vChar2 := AccessHelp[3];    (* 2nd assignment: accessing the 3rd character of the 4th ARRAY element *)
END_PROGRAM

Information on STRING variables are listed under "Declaration of STRING variables (incl. access)".

logi.cals recommends to install and use the most current versions of logi.CAD 3 and the runtime system so that the latest features and problem fixes according to the release notes are provided in the used version.

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