Bit Device Output Inversion - Mitsubishi MELSEC-Q Series Programming Manual

FF
5.3.9

Bit device output inversion

FF
Structured ladder
FF
EN ENO
s
Input argument, EN:
s:
Output argument, ENO:
Setting
data
s
Function
(1) Inverts the output status of the device specified for
turned from OFF to ON.
Bit device
Bit specification for word devices
Operation Error
No operation error occurs in the execution of the FF instruction.
5.3 Output Instructions
5-40
5.3.9 Bit device output inversion
ST
ENO:=
FF
Executing condition
Device number whose status to be inverted
Execution result
Internal device
R, ZR
Bit Word
Device
Prior to execution of the FF instruction
Executing condition
FF
(EN, s);
:Bit
:Bit
:Bit
J \
U \G
Bit Word
when the execution command is
s
Device status
OFF
ON
0
1
Performance
Universal
UD
:
indicates the following instruction.
Zn Constant
−
After execution of the FF instruction
ON
OFF
1
0
FF
High
Others
DY