154
FF
[Timing Chart]
: Device number of the device to be reversed (bits)
Function
(1) Reverses the output status of the device designated by when the execution command is turned OFF ON.
Operation Error
(1) There is no operation error in the FF instruction.
Program Example
(1) The following program reverses the output of Y10 when X9 goes ON.
[Ladder Mode]
[List Mode]
[Timing Chart]
FF
Bit device output inversion
5.3.9
FF
Setting
Data
Internal Devices
R, ZR
J \
U \G
Zn
Constants
Other
DY
Bit
Word
Bit
Word
––
Device
Device Status
Prior to FF Execution
After FF Execution
Bit device
OFF
ON
ON
OFF
Bit designated for word device
0
1
1
0
X9 OFF
M9 OFF
ON
ON
1 scan
Basic
Process
High
performance
Redundant Universal
LCPU
Command
FF
D
FF
D
D
D
Step
Instruction
Device
ON
X9
Y10
ON
OFF
OFF