AdrLast_Of_Var

Returns the input or output address

This function returns the address of a variable at the input or output of a basic function.

Parameters

Input

AdrLast (ANY)

This pin must be connected to the input/output of a basic function for which the data type INT, WORD is allowed

Yields the 16-bit final address of the input/output variables

Output

Var (ANY_IN_UNITS_OF_WORDS): Output variable for which the 16-bit final address is needed

Remarks

The 16-bit final address is yielded at input/output AdrLast based on the variable at input/output Var. This input or output has to be directly attached to the 16-bit input or output of a basic function.
Only for LD and FBD Editors: Use “Input instruction” or “Output instruction” from the “Instructions” pane to insert the instruction required into the programming window.

Example

POU header

All input and output variables used for programming this function have been declared in the POU header. The same POU header is used for all programming languages.

	VAR
		start: BOOL:=FALSE;
		data_field: ARRAY [0..5] OF INT:=[6(111)];
	END_VAR

LD body

When the variable start is set to TRUE, the function is carried out. The function copies the value 100 into all elements of the data field, i.e. all six elements in data_field have the value 100.

BODY
    WORKSPACE
        NETWORK_LIST_TYPE := NWTYPELD ;
        ACTIVE_NETWORK := 0 ;
    END_WORKSPACE
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 8 ;
        NETWORK_BODY
B(B_COMMENT,,Initialization of all data fields with the values,2,0,22,1,);
B(B_F,F11_COPY!,Instance,5,2,12,7,,?DEN?Ds?AENO?Cd1_Start?Cd2_End);
B(B_VARIN,,start,3,3,5,5,);
B(B_VARIN,,100,3,4,5,6,);
B(B_F,AdrLast_Of_Var_O!,Instance,14,6,24,8,,?D?C);
B(B_VAROUT,,data_field,24,6,26,8,);
B(B_F,Adr_Of_Var_O!,Instance,14,4,22,6,,?D?C);
B(B_VAROUT,,data_field,22,4,24,6,);
L(12,5,14,5);
L(12,6,12,7);
L(12,7,14,7);
L(1,0,1,8);
        END_NETWORK_BODY
    END_NET_WORK
END_BODY

Further example see: Example