Operation Results Inversion (Inv) - Mitsubishi MELSEC QCPU Programming Manual

5 SEQUENCE INSTRUCTIONS

5.2.3 Operation results inversion (INV)

Internal Devices
Set
(System, User)
Data
Bit Word
[Instruction Symbol] [Execution Condition]
INV
[Functions]
Inverts the operation result immediately prior to the INV instruction.
Operation Result Immediately
[Operation Errors]
(1) There are no operation errors associated with the INV instruction.
[Program Example]
(1) A program which inverts the X0 ON/OFF data, and outputs from Y10
[Ladder Mode]
[Timing Chart]
POINTS
(1) The INV instruction operates based on the results of calculation made until the INV
instruction is given. Accordingly, use it in the same position as that of the AND instruction.
The INV instruction cannot be used at the LD and OR positions.
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MELSECNET/10(H)
File Direct J \
Register
Bit
Prior to the INV Instruction.
OFF
ON
ON
OFF
X0
ON
Y10
OFF
QCPU
PLC CPU
Basic
High Performance
Usable Devices
Special
Function
Module
Word
U \G
Operation Result Following the
Execution of the INV Instruction.
[List Mode]
Instruction
Steps
MELSEC-Q/QnA
QnA
Process CPU
Index Other
Constant
Register
K, H
Zn
ON
OFF
Device
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Q4AR
U