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Project name QEX1
Program name MAIN
Ladder example
When the conveyor belt operation start switch (X0) is turned on, the buzzer (Y70)
beeps for three seconds and the conveyor belt (Y71) starts to operate.
The conveyor belt automatically stops when the sensor (X1) detects that six
packages have passed through.
Sensor
(X1)
MC
Motor
(Y71)
Control panel
Operating panel
(X0) (Y70)
Operation Buzzer
Conveyor
Create the following ladder and check that it operates properly.
M0
M0
M0
M0
T0
X0
X1
Y71
0
4
7
12
14
19
Y70
T0
Y71
C0
C0
RST
Y71
During operation
Buzzer
3-sec. timer
Operating the conveyor
Counter for counting
the number of packages
K30
K6
C0