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9 MAJOR POSITIONING CONTROL
9.2.20 NOP instruction
POINT
<Use example of NOP instruction>
If there is a possibility of speed switching or temporary stop (automatic deceleration) at a point
between two points during positioning, that data can be reserved with the NOP instruction to change
the data merely by the replacement of the identifier.
The NOP instruction is used for the nonexecutable control system.
Operation
The positioning data No. to which the NOP instruction is set transfers, without any
processing, to the operation for the next positioning data No.
Positioning data setting examples
The following table shows the setting examples when "NOP instruction" is set in
positioning data No. 1 of axis 1.
Setting item
Operation
Da.1
pattern
Control
Da.2
system
Acceleration
Da.3
time No.
Deceleration
Da.4
time No.
Axis to be
Da.5
interpolated
Axis 1
Positioning
positioning
address/
data No. 1
Da.6
movement
amount
Da.7
Arc address
Command
Da.8
speed
Da.9
Dwell time
Da.10
M code
Refer to Section 5.3 "List of positioning data" for information on the setting details.
Restrictions
An error "Control system setting error (error code: 524)" will occur if the "NOP
instruction" is set for the control system of the positioning data No. 600.
Setting example
–
NOP instruction
–
–
–
–
–
–
–
–
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MELSEC-Q
Setting details
Setting not required (Setting value
is ignored.)
Set the NOP instruction
Setting not required (Setting value
is ignored.)
Setting not required (Setting value
is ignored.)
Setting not required (Setting value
is ignored.)
Setting not required (Setting value
is ignored.)
Setting not required (Setting value
is ignored.)
Setting not required (Setting value
is ignored.)
Setting not required (Setting value
is ignored.)
Setting not required (Setting value
is ignored.)
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Troubleshooting
