1 Basic Principles of PLC Ladder Diagram
DVP-PLC Application Manual
1-16
MPS and MPP instruction can be omitted when the multiple outputs in the same horizontal line do not need to
operate with other input devices.
Ladder diagram complied into instruction
MPS
AND X0
OUT Y1
MPP
X0
Y1
Y0
Ø
OUT Y0
Ladder diagram complied into instruction
OUT Y0
AND X0
Y0
Y1
X0
OUT Y1
Correct the circuit of reverse flow
In the following two examples, the diagram in the left hand side is the ladder diagram we desire. However, the illegal
“reverse flow” in it is incorrect according to our definition on the ladder diagram. We modify the diagram into the
diagram in the right hand side.
Example 1
X0
X3
X6
X1
X4
X7
X2
X5
X10
LO OP 1
rever se fl ow
Ö
X0
X1
X2
X3
X4
X5
X10
X6
X7
X5
X10
LOOP1
Example 2
X0
X3
X6
X1
X4
X7
X2
X5
X10
LO OP 1
rever se fl ow
X 0
X 3
X 6
X 1
X 4
X7
X2
X 5
X10
L OO P2
Reverse fl ow
Ö
LOOP1
X0
X1
X2
X3
X4
X5
X6
X3
X7
X10
X6
X0
X1
X7
X10
LOOP
2
X4
Содержание DVP-PLC
Страница 1: ...PLC PLC...
Страница 28: ...1 Basic Principles of PLC Ladder Diagram DVP PLC Application Manual 1 24 MEMO...
Страница 192: ...4 Step Ladder Instructions DVP PLC Application Manual 4 22 MEMO...
Страница 250: ...6 Application Instructions API 00 49 DVP PLC Application Manual 6 38 X0 DIV D0 D10 D20 D0 D10 K4Y0 DIV...
Страница 270: ...6 Application Instructions API 00 49 DVP PLC Application Manual 6 58 RST M0 X0 RST T0 RST Y0 FMOV K0 D10 K5...
Страница 337: ...7 Application Instructions API 50 99 DVP PLC APPLICATION MANUAL 7 53 X10 STMR T10 K50 Y0 Y3 X10 Y1 Y2 5 sec 5 sec...
Страница 458: ...8 Application Instructions API 100 149 DVP PLC Application Manual 8 56 or relay itself See 2 3 for more information...
Страница 472: ...8 Application Instructions API 100 149 DVP PLC Application Manual 8 70 MEMO...
Страница 574: ...9 Application Instructions API 150 199 DVP PLC Application Manual 9 102 MEMO...