Var_ToAreaOffs32

POU body

When the variable bStart is set to TRUE, the function block CalcSum_REAL is carried out. It calculates the sum of all elements of the data field g_arArrayIn1 and writes the result to the data field g_arArrayOut1. In this way the first element of g_arArrayOut1 receives the first element of g_arArrayIn1. The second element of g_arArrayOut1 contains the sums of the first and second element of g_arArrayIn1.The third element of g_arArrayOut1 contains the sums of the first, second and third element of g_arArrayIn1.....

Remember that the function block CalcSum_REAL can calculate its function independently of the memory areas in which both data fields can be stored and independently of the number of elements in the data fields. If you wish to assign an address for the data field, you have to declare the data field in the global variable list.Both data fields must possess the same number of elements.

LD body

BODY
    WORKSPACE
        NETWORK_LIST_TYPE := NWTYPELD ;
        ACTIVE_NETWORK := 0 ;
    END_WORKSPACE
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 7 ;
        NETWORK_BODY
B(B_VARIN,,g_arArrayIn1,10,4,12,6,);
B(B_VARIN,,g_arArrayOut1,10,5,12,7,);
B(B_F,GetPointer32!,,12,4,19,6,,?D?C);
B(B_F,GetPointer32!,,12,5,19,7,,?D?C);
B(B_CONTACT,,bStart,5,3,7,5,);
B(B_FB,CalcSum_Real!,CalcSum_Real1,19,2,29,7,,?BEN?Bp32InputArray?Bp32OutputArray?AENO);
L(7,4,19,4);
L(1,4,5,4);
L(1,0,1,7);
        END_NETWORK_BODY
    END_NET_WORK
END_BODY

LD body

• Network 1–5:

  here the initializations for calculating the sum that follows is dealt with.

• Network 6:

  copies value of an element from the input data field.

• Network 7:

  adds this value to the current sum.

• Network 8:

  copies current sum to an element of the output data field.

• Network 9:

  calculation of the offset for the next data field element of the input data field and output data field.

• Network 10:

  jump to the label (network 6) until all elements of the data field have been processed.

BODY
    WORKSPACE
        NETWORK_LIST_TYPE := NWTYPELD ;
        ACTIVE_NETWORK := 0 ;
    END_WORKSPACE
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 5 ;
        NETWORK_BODY
B(B_F,Is_AreaDT!,,12,0,18,2,,?D?C);
B(B_VARIN,,p32ToDatafield.iArea,9,1,11,3,);
B(B_F,Is_AreaFL!,,12,3,18,5,,?D?C);
B(B_F,@AND-2!,,19,1,24,4,NN,?D?D?C);
B(B_F,E_MOVE!,,29,0,35,4,,?DEN?D?AENO?C);
B(B_VARIN,,FALSE,27,2,29,4,);
B(B_VAROUT,,ENO,35,2,37,4,);
B(B_RETURN,,,36,1,38,3,);
L(12,2,12,4);
L(12,1,12,2);
L(11,2,12,2);
L(18,1,18,2);
L(18,2,19,2);
L(18,3,18,4);
L(18,3,19,3);
L(35,2,36,2);
L(24,2,29,2);
L(1,0,1,5);
        END_NETWORK_BODY
    END_NET_WORK
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 2 ;
        NETWORK_BODY
B(B_VARIN,,p32ToDatafield.diOffset,18,0,20,2,);
B(B_VAROUT,,In_Offs_Intern,20,0,22,2,);
L(1,0,1,2);
        END_NETWORK_BODY
    END_NET_WORK
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 2 ;
        NETWORK_BODY
B(B_VARIN,,0.0,18,0,20,2,);
B(B_VAROUT,,rSum,20,0,22,2,);
L(1,0,1,2);
        END_NETWORK_BODY
    END_NET_WORK
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 2 ;
        NETWORK_BODY
B(B_VARIN,,1,18,0,20,2,);
B(B_VAROUT,,Idx,20,0,22,2,);
L(1,0,1,2);
        END_NETWORK_BODY
    END_NET_WORK
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL := Lbl1: ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 4 ;
        NETWORK_BODY
B(B_F,AreaOffs32_ToVar!,,17,0,27,4,,?DiArea?DdiOffs?C@'Var');
B(B_VARIN,,p32ToDatafield.iArea,15,1,17,3,);
B(B_VAROUT,,Sum_Operand,27,1,29,3,);
B(B_VARIN,,In_Offs_Intern,15,2,17,4,);
L(1,0,1,4);
        END_NETWORK_BODY
    END_NET_WORK
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 3 ;
        NETWORK_BODY
B(B_F,@ADD-2!,,17,0,22,3,,?D?D?C);
B(B_VARIN,,rSum,15,0,17,2,);
B(B_VARIN,,Sum_Operand,15,1,17,3,);
B(B_VAROUT,,rSum,22,0,24,2,);
L(1,0,1,3);
        END_NETWORK_BODY
    END_NET_WORK
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 3 ;
        NETWORK_BODY
B(B_F,Size_Of_Var!,,17,1,24,3,,?D?C);
B(B_VARIN,,Sum_Operand,15,1,17,3,);
B(B_F,@ADD-2!,,32,0,37,3,,?D?D?C);
B(B_VARIN,,In_Offs_Intern,30,0,32,2,);
B(B_VAROUT,,In_Offs_Intern,37,0,39,2,);
B(B_F,INT_TO_DINT!,,24,1,32,3,,?D?C);
L(1,0,1,3);
        END_NETWORK_BODY
    END_NET_WORK
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 5 ;
        NETWORK_BODY
B(B_F,@LT-2!,,13,1,18,4,,?D?D?C);
B(B_VARIN,,p32ToDatafield.diSize,11,2,13,4,);
B(B_F,E_ADD-2!,,22,0,28,5,,?DEN?D?D?AENO?C);
B(B_VARIN,,1,20,3,22,5,);
B(B_VAROUT,,Idx,28,2,30,4,);
B(B_VARIN,,Idx,20,2,22,4,);
B(B_JUMP,,Lbl1,28,1,30,3,);
B(B_VARIN,,Idx,3,1,5,3,);
B(B_F,INT_TO_DINT!,,5,1,13,3,,?D?C);
L(18,2,22,2);
L(1,0,1,5);
        END_NETWORK_BODY
    END_NET_WORK
END_BODY