Thursday, April 13, 2006


Acquiring GPS Data with MGCplus: No problem with the soft PLC ML70. Ready made CODESYS programs - free of charge - are available for different tasks in different applications. Posted by Picasa
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2 comments:

  1. Anonymous9:53 AM, April 18, 2006

    Hi, are there anywhere the CoDeSys programs for ML70 or ML70B available for download ?

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  2. Anonymous9:47 AM, April 19, 2006

    ML70(B) can be used for many applications. Below there is source text representing export code from codesys. Here you can perform fast online averaging (not only for ML70).


    (* @PATH := '\/specfun\/filter\/average' *)
    (* @SYMFILEFLAGS := '0' *)
    FUNCTION_BLOCK average_real (* Online average calculation over N values *)
    VAR_INPUT (* IN : signal of type REAL *)
    IN: REAL; (* N : number of values to consider (INT) *)
    N: INT; (* 2 <= N <=100 *)
    reset: BOOL; (* reset : When TRUE, output OUT is set to zero *)
    END_VAR (* and "history buffer is cleared *)
    VAR_OUTPUT (* OUT : result is average over history *)
    OUT: REAL;
    END_VAR
    VAR
    a: ARRAY [0..99] OF REAL;
    k: INT;
    p: INT;
    summe: REAL;
    END_VAR
    (* @END_DECLARATION := '0' *)
    IF N>100 THEN
    N:=100;
    ELSE
    IF N<2 THEN
    N:=2;
    END_IF;
    END_IF;
    IF NOT reset THEN
    summe:=summe-a[k];
    a[k]:=IN;
    summe:=summe+IN;
    k:=k+1;
    IF k>=N THEN
    k:=0;
    END_IF
    OUT:=summe/INT_TO_REAL(N);
    ELSE
    OUT:=0;
    summe:=0;
    FOR p:=0 TO N-1 DO;
    a[p]:=0;
    END_FOR;
    END_IF;
    END_FUNCTION_BLOCK

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