S7 300/400 的一些功能和技巧2
数据块拷贝
FUNCTION FC 100 : VOID
TITLE =
//DB BLOCK COPY
AUTHOR : AXG
NAME : DBBTODBB
VERSION : 0.1
VAR_INPUT
SOU_DB : INT ; //SOURCE DB NUMBER
LENG : INT ; //HOW MANY TO COPY
DES_DB : INT ; //DESTINATION DB NUMBER
END_VAR
VAR_TEMP
SOURCE : ANY ;
DEST : ANY ;
END_VAR
BEGIN
NETWORK
TITLE =
LAR1 P##SOURCE; // Load the start address of the ANY pointers in AR1.
L B#16#10; // Load the syntax ID and
T LB [AR1,P#0.0]; // transfer it to the ANY pointer.
L B#16#4; // Load data type WORD and
T LB [AR1,P#1.0]; // transfer it to the ANY pointer.
L #LENG; // Load HOW MANY WORDS and
T LW [AR1,P#2.0]; // transfer them to the ANY pointer
L #SOU_DB; // Source is DB[?], DBB0.0
T LW [AR1,P#4.0]; //
L P#DBX 0.0; //
T LD [AR1,P#6.0]; //
LAR1 P##DEST; //Load the DESTINATION address of the ANY pointer in AR1.
L B#16#10; //Load the syntax ID and
T LB [AR1,P#0.0]; //transfer it to the ANY pointer.
L B#16#4; //Load data type WORD and
T LB [AR1,P#1.0]; //transfer it to the ANY pointer.
L #LENG; //Load HOW MANY WORDS and
T LW [AR1,P#2.0]; //transfer them to the ANY pointer.
L #DES_DB; //Destination is DB{?}, DBB0.0
T LW [AR1,P#4.0];
L P#DBX 0.0; //
T LD [AR1,P#6.0]; //
CALL "BLKMOV" (//Call the block move system function
SRCBLK := #SOURCE,//
RET_VAL := MW 210,//Evaluate the BR bit and MW 210
DSTBLK := #DEST);//
END_FUNCTION
使用说明：可直接调用，#SOURCE---源数据块号
#DEST------目标数据块号
#LENG----要拷贝数据的长度
S7 300/400 的一些功能和技巧2
单键翻转
FUNCTION FC 11 : VOID
TITLE =
//
AUTHOR : AXG
FAMILY : ESU
NAME : SDZF
VERSION : 0.0
BEGIN
NETWORK
TITLE =
A M 0.0; PLC
A M 0.1;
= M 58.0;
NETWORK
TITLE =
A M 58.0;
AN M 58.1;
= M 58.2;
NETWORK
TITLE =
A M 58.2;
S M 58.1;
ON M 58.0;
ON M 0.0;
R M 58.1; PLC
NOP 0;
NETWORK
TITLE =
A M 58.2;
A M 58.4;
= M 58.3;
NETWORK
TITLE =
A M 58.2;
AN M 58.3;
AN M 58.4;
S M 58.4;
O M 58.3;
ON M 0.0;
R M 58.4;
PLC
