LSIS MASTER-K200S Instructions & Programming page 108

Chapter 4. Basic instructions
A control circuit for motor operation (example of CTUD instruction)
1. Operation
There are 4 motors controlled by PLC. Whenever the push - button PB1 is pressed, the numbers of
operating motor is increased by 1. The PB2 decreases the numbers of operating motor whenever it is
pressed. If the PB1 is pushed when 4 motors are operating, all motors will stop their operation.
2. System diagram
M4 M3
3. Program
0000
0006
0012
C005
0018
C005
0024
C005
0030
0032
0034
0036
0038
PB1
PB2
M2 M1
P030
P031
C005
P030
P031
C005
P030
P031
P030
P031
P030
P031
C001
C002
C003
C004
4-41
Input
module P03
0
1
2
3
.
.
.
.
.
U CTUD C001
D
R <S> 00001
U CTUD C001
D
R <S> 00002
U CTUD C003
D
R <S> 00001
U CTUD C0004
D
R <S> 00004
U CTUD C005
D
R <S> 00005
( P060 )
( P061 )
( P062 )
( P063 )
[ ]
END
Input
module P06
0
1
2
3
.
.
.
.
.
st
C001 : operate 1 motor
nd
C002 : operate 2 motor
rd
C003 : operate 3 motor
th
C004 : operate 4 motor
C005 : reset signal