118
[Ladder]
[Timing Chart]
• The ON/OFF timing of the X0 and X1 is different. (The specified device does not turn ON throughout the scan.)
• The X0 and X1 turn OFF from ON at the same time.
When using a refresh type CPU module and specifying output (Y) in the PLF instructions, the ON/OFF status of the
device at the execution of the last PLF instruction in the scan is returned as the output (Y).
M0
X0
X1
P
LF
M0
P
LF
M0
O
FF
O
N
EN
D
EN
D
EN
D
X0
X1
M0
O
FF
O
FF
O
N
P
LF
X0
X1
M0
P
LF
M0
P
LF
M0
P
LF
X0
X1
O
N
M0
turns
O
N because
X0
go
es
O
FF
(O
N
O
FF
)
.
M0
turns
O
FF because
X1
status is
o
ther than
O
N
O
FF.
M0
turns
O
FF because
X1
status is
o
ther than
O
N
O
FF.
(M0
remains
O
FF.
)
M0
turns
O
FF because
X0
status is
o
ther than
O
N
O
FF
(M0
remains
O
FF.
)
M0
O
FF
O
N
EN
D
EN
D
EN
D
X0
X1
M0
O
FF
O
FF
P
LF
X0
X1
M0
P
LF
M0
P
LF
M0
P
LF
X0
X1
O
N
O
N
M0
turns
O
N because
X0
go
es
O
FF
(O
N
O
FF
)
.
M0
turns
O
N because
X1
go
es
O
FF
(O
N
O
FF
)
.
(M0
remains
O
N.
)
M0
turns
O
FF because
X1
status is
o
ther than
O
N
O
FF.
(M0
remains
O
FF.
)
M0
turns
O
FF because
X1
status is
o
ther than
O
N
O
FF.
