Mitsubishi Electric MELSEC-Q/L - No Operations

5 SEQUENCE INSTRUCTIONS
5.7 Other Instructions
183
5
No operations
NOP, NOPLF, PAGE n
*1 Only the decimal constant (K) can be used. The hexadecimal constant (H) and the real number (E) cannot be used.
Processing details
■NOP
• This is a no operation instruction that has no impact on any operations up to that point.
• The NOP instruction is used in the following cases:
■NOPLF
• This is a no operation instruction that has no impact on any operations up to that point.
• The NOPLF instruction is used when printing from a programming tool to force a page change at any desired location.
• Refer to the Operating Manual for the programming tool in use for details of printouts from the programming tool.
■PAGE n
• This is a no operation instruction that has no impact on any operations up to that point.
• No processing is performed at a programming tool with this instruction.
Operation error
• There is no operation error in the NOP, NOPLF, or PAGE instruction.
Setting
data
Internal device R, ZR J\ U\G Zn Constant Others
Bit Word Bit Word
n  
*1

• To insert space for sequence program debugging.
• To delete an instruction without having to change the number of steps. (Replace the instruction with NOP.)
• To temporarily delete an instruction.
Item Description
When printing ladders • A page break will be inserted between ladder blocks with the presence of the NOPLF instruction.
• The ladder cannot be displayed correctly if an NOPLF instruction is inserted in the midst of a ladder block.
• Do not insert an NOPLF instruction in the midst of a ladder block.
When printing instruction lists • The page will be changed after the printing of the NOPLF instruction.
Basic
Process
High
performance
Redundant Universal LCPU
PAGE n
NOPLF
NOP
In the ladder display, NOP is not displayed.
Command
NOP
NOPLF
PAGE n