F12_ICRD

IC卡扩展内存读取

从s1_Start指定的IC卡扩展内存区中的地址读取由s2_Number指定字数的数据，并写入d_Start指定的区域。

参数

输入

s1_Start(DWORD, DINT, UDINT, DATE, TOD, DT): 要在扩展内存中读取的起始32位区域
s2_Number(DWORD, DINT, UDINT, DATE, TOD, DT): 要读取的字数

输出

d_Start (WORD, INT, UINT): 目标，起始16位区域

示例

POU头

所有用于编程此函数的输入和输出变量已在POU头中声明。所有编程语言使用相同的POU头。

	VAR 
		Var_Real: REAL:=0.0;
		Write_To_ICCard: BOOL:=FALSE;
		Read_From_ICCard: BOOL:=FALSE;
		ICCardStartAdr: DINT:=0;
	END_VAR

LD本体

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_F,E_ADD-2!,Instance,9,2,15,7,,?DEN?D?D?AENO?C);
B(B_VAROUT,,Var_Real,15,4,17,6,);
B(B_CONTACT,,sys_bPulse1s,4,3,6,5,R);
B(B_COMMENT,,Just count th REAL value up,2,1,16,2,);
B(B_VARIN,,22.33,7,5,9,7,);
B(B_VARIN,,Var_Real,7,4,9,6,);
L(1,4,4,4);
L(6,4,9,4);
L(1,0,1,7);
        END_NETWORK_BODY
    END_NET_WORK
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 13 ;
        NETWORK_BODY
B(B_F,F13_ICWT!,Instance,20,2,28,8,,?DEN?Ds1_Start?Ds2_Number?Dd_Start?AENO);
B(B_CONTACT,,Write_To_ICCard,10,3,12,5,R);
B(B_F,Adr_Of_Var_I!,Instance,8,5,15,7,,?D?C);
B(B_VARIN,,Var_Real,6,5,8,7,);
B(B_F,Size_Of_Var!,Instance,8,7,15,9,,?D?C);
B(B_F,INT_TO_DINT!,Instance,8,9,16,11,,?D?C);
B(B_VARIN,,ICCardStartAdr,6,11,8,13,);
B(B_COMMENT,,Write REAL value to IC card,2,1,16,2,);
L(1,4,10,4);
L(12,4,20,4);
L(8,6,8,8);
L(15,6,16,6);
L(16,5,16,6);
L(16,5,20,5);
L(7,9,16,9);
L(7,9,7,10);
L(7,10,8,10);
L(15,8,16,8);
L(16,8,16,9);
L(17,6,17,10);
L(17,6,20,6);
L(16,10,17,10);
L(8,12,19,12);
L(19,7,19,12);
L(19,7,20,7);
L(1,0,1,13);
        END_NETWORK_BODY
    END_NET_WORK
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 9 ;
        NETWORK_BODY
B(B_CONTACT,,Write_To_ICCard,10,2,12,4,R);
B(B_VARIN,,ICCardStartAdr,8,3,10,5,);
B(B_F,Size_Of_Var!,Instance,8,5,15,7,,?D?C);
B(B_F,INT_TO_DINT!,Instance,8,7,16,9,,?D?C);
B(B_COMMENT,,Read REAL value from IC card,2,0,16,1,);
B(B_F,F12_ICRD!,Instance,18,1,26,6,,?DEN?Ds1_Start?Ds2_Number?AENO?Cd_Start);
B(B_F,Adr_Of_Var_O!,Instance,27,3,35,5,,?D?C);
B(B_VAROUT,,Var_Real,35,3,37,5,);
B(B_VARIN,,Var_Real,6,5,8,7,);
L(1,3,10,3);
L(7,7,16,7);
L(7,7,7,8);
L(7,8,8,8);
L(15,6,16,6);
L(16,6,16,7);
L(12,3,18,3);
L(26,4,27,4);
L(10,4,18,4);
L(18,5,18,8);
L(16,8,18,8);
L(1,0,1,9);
        END_NETWORK_BODY
    END_NET_WORK
END_BODY

ST本体

IF DF(R901C) then
    Var_Real := Var_Real + 22.33;
END_IF;
(* Write a REAL value to the IC Card *)
IF DF(Write_To_ICCard) then
    F13_ICWT( s1_Start:= Adr_Of_Var( Var_Real ) , s2_Number:= INT_TO_DINT( Size_Of_Var( Var_Real ) ), d_Start:= ICCardStartAdr );
END_IF;
(*Read a REAL value from the IC Card*)
IF DF(Read_From_ICCard) then
    F12_ICRD( s1_Start:= ICCardStartAdr, s2_Number:=  INT_TO_DINT( Size_Of_Var( Var_Real ) ) ,
         d_Start=> Adr_Of_Var( Var_Real ) );
END_IF;