Bit Device Output Reverse (Ff) - Mitsubishi MELSEC Q Series Programming Manual

FF
5.3.9

Bit device output reverse (FF)

FF
FF
Setting
Data
D
Function
(1) Reverses the output status of the device designated by
turned OFF ON.
Bit device
Bit designated for word device
Operation Error
(1) There are no operation errors associated with the FF instruction.
Program Example
(1) The following program reverses the output of Y10 when X9 goes ON.
[Ladder Mode]
[Timing Chart]
X9
Y10
5-40
Command
: Device number of the device to be reversed (bits)
D
Internal Devices
R, ZR
Bit Word
Device
ON
OFF
ON
OFF
High
Basic
performance
J \
U \G
Bit Word
D
Device Status
Prior to FF Execution
OFF
ON
0
1
[List Mode]
Instruction
Step
Process
Redundant Universal
FF D
Zn Constants
––
when the execution command is
After FF Execution
ON
OFF
1
0
Device
LCPU
Other
DY