Panasonic FP-E Programming Manual page 145

NOP
Outline No operation
Program example
0
Description
This instruction has no effect on the operation result to that point.
The same operation takes place without a NOP instruction.
The NOP instruction can be used to make the program easier to read when checking or correcting.
When you want to delete an instruction without changing addresses, write a NOP instruction (overwrite the
previous instruction).
When you want to move the addresses of one part of a program without changing the program, insert a NOP
instruction.
This is a convenient means of breaking a long program into several blocks.
Example:
To move the starting point of a program block from address 39
to address 40, insert a NOP instruction at address 39.
Address
Deleting a NOP instruction
To delete the NOP instruction after editing in the PROG. mode, use the programming tools.
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No operation
5
Ladder Diagram Ladder Diagram
X0 X1 X2
・
NOP
36 ST X0
OR X1
・
OT Y10
・
39 ST X2
40 AN X3
OT R20
・
ST R2
・
DF
・
44 ST X3
Y10
Address
36
・
・
This moves the
39
starting point to
40
address 40.
41
・
・
・
45
Basic Instructions
Boolean
Address Instruction
0 ST X
1 AN X
2 NOP
3 AN/ X
4 OT Y
ST X0
OR X1
OT Y10
NOP
Insert a NOP
ST X2
instruction.
AN X3
OT R20
ST R2
DF
ST X3
0
1
2
10
2 − 35