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Operation Practice
Verify the operation of the ladder, which was created with GX Works2 and written to
the CPU of the demonstration machine, by monitoring the ladder on the screen.
X2
X3
X4
0
3
5
6
9
10
P10
Y70
FEND
Y71
RET
END
P10CALL
(1) When X2 is off
(a) The operation is executed from 0 to
FEND.
(b) Turning on or off X3 turns on or off
Y70.
(c) Turning on or off X4 does not change
Y71.
(2) When X2 is on
(a) After the subroutine of P10 is
executed, the operation from step 3
to FEND is executed.
(b) Turning on or off X3 turns on or off
Y70.
(c) Turning on or off X4 turns on or off
Y71.
Related Exercise
–––– Exercise 4
LD X2
CALL P10
LD X3
OUT Y70
FEND
P10
LD X4
OUT Y71
RET
0
1
3
4
5
6
7
8
9
Operation when X2 is on
Operation when X2 is off