Mitsubishi MELSEC-Q/L Programming Manual page 120

[Ladder]
X0
X1
[Timing Chart]
• The ON/OFF timing of the X0 and X1 is different. (The specified device does not turn ON throughout the scan.)
END
ON
OFF
X0
X1
OFF
OFF
M0
• The X0 and X1 turn OFF from ON at the same time.
END
ON
OFF
X0
ON
X1
OFF
OFF
M0
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).
118
PLF M0
PLF M0
X0
PLF M0
X1
PLF
END
ON
ON
M0 turns OFF because X1
status is other than ON
M0 turns ON because
X0 goes OFF (ON OFF).
X0
PLF M0
X1
PLF
END
ON
M0 turns ON because
X1 goes OFF (ON
(M0 remains ON.)
M0 turns ON because
X0 goes OFF (ON OFF).
X0
PLF
X1
M0
M0 turns OFF because X1 status is
other than ON
OFF.
(M0 remains OFF.)
M0 turns OFF because X0 status is
other than ON OFF
(M0 remains OFF.)
X0
PLF
X1
M0
M0 turns OFF because X1 status is
other than ON
OFF).
(M0 remains OFF.)
M0 turns OFF because X1 status is
other than ON OFF.
M0
PLF M0
END
OFF.
M0
PLF M0
END
OFF.