Mitsubishi MELSEC QS Series Programming Manual page 48

[Timing Chart]
• The ON/OFF timing of the X0 and X1 is different. (The specified device does not turn ON
X0
X1
M0
• The X0 and X1 turn OFF from ON at the same time.
X0
X1
M0
When specifying output (Y) in 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).
3-18
3.7 Operation when OUT, SET/RST, or PLS/PLF Instructions Use the Same Device
throughout the scan.)
END
ON
OFF
OFF
ON
OFF
M0 is turned ON because
X0 goes ON
END
ON
OFF
ON
OFF
ON
OFF
M0 is turned ON because
X0 goes ON
X0
PLF M0
X1
PLF M0
END
ON
M0 is turned OFF because
X1 is other than ON OFF status.
M0 is turned OFF because
OFF.
X0 is other than ON
(M0 remains OFF.)
X0
PLF M0
X1
PLF M0
END
M0 is turned ON because
X1 goes ON OFF.
(M0 remains ON.)
OFF.
X0
PLF M0
X1
PLF M0
END
M0 is turned OFF because X1
is other than ON
(M0 remains OFF.)
OFF status.
X0
PLF M0
X1
PLF M0
END
M0 is turned OFF because X1
is other than ON
(M0 remains OFF.)
M0 is turned OFF because
X0 is other than ON OFF status.
OFF status.
OFF status.