Welcome to our new forum
All users of the legacy CODESYS Forums, please create a new account at account.codesys.com. But make sure to use the same E-Mail address as in the old Forum. Then your posts will be matched. Close

Array finding the total of index

  • dumbass - 2022-11-25


    I have an array of String but I do not know how many elements in it. If the user put 3 elements in the array then the total of index = 3. How can I scan all the elements array if it is not equal to '' (meaning NULL) and get the total of index in the array?
    Thank you in advance

  • oguzemretombul - 2023-02-13

    You can not define dynamic size array in codesys. I guess you have an array with static length but you want to now how many elements is not empty.
    for example you have ' StringArrayVar : ARRAY [1..100] OF STRING ' . you can find like that how many elements is not empty;


    StringArrayVar : ARRAY [1..100] OF STRING ;
    i: byte ;
    TotalIndex : Byte ;


    TotalIndex := 0 ;
    FOR i:=1 TO 100 DO
    IF StringArrayVar[i] <> '' THEN TotalIndex := TotalIndex + 1 ; END_IF


Log in to post a comment.