Outline
No operation
Program example
■
Explanation of example
• Y0 outputs when X1 turns ON.
Description
• The
NOP
instruction can be used to make the program easier to read when checking or
correcting.
• When the
NOP
instruction is inserted, the size of the program will increase slightly, however,
there will be no effect on the results of the arithmetic operations.
Example:
• To move the starting point of a program block from address 39 to address 40, insert a
NOP
instruction to address 39.
This moves the starting point to address 40.
Notes:
• To delete the
NOP
instruction after editing in the PROG. mode, use the programming tools (NPST-GR:
DELETE ALL NOPS, FP Programmer
II
: OP1).
Operation procedure of FP Programmer
II
• Refer to page 139, “5-4. Hints for Programming Basic Instructions”, for details about basic instructions,
such as the
NOP
instruction, which are not displayed on the FP Programmer
II
keys.
ST
OR
OT
ST
AN
OT
ST
DF
ST
X0
X1
Y1
X2
X3
R20
R2
X3
ST
OR
OT
NOP
ST
AN
OT
ST
DF
ST
X0
X1
Y1
X2
X3
R20
R2
X3
Insert a
NOP
instruction.
36
•
•
39
40
•
•
•
44
Address
36
•
•
39
40
41
•
•
•
45
Address
NOP
No operation
Availability
Step
1
All series
Ladder Diagram
FP1-Programmer
II
key
operations
Boolean Non-ladder
Address Instruction
0
X1
Y0
NOP
•
ST
X-WX
ST
X-WX
WRT
1
WRT
AN
Y-WY
OT
L-WL
WRT
0
WRT
SHIFT
SC
1
SHIFT
SC
(DELT)
INST
0
1
2
ST
X
1
NOP
OT
Y
0
5-3. Description of Basic Instructions
114
(–)
OP
ENT
1
ACLR
SHIFT
SC
(DELT)
INST
Содержание FP1
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