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MELSEC-Q
9 MAJOR POSITIONING CONTROL
9.2.20 NOP instruction
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 Setting example Setting details
Da.1
Operation
pattern
–
Setting not required (Setting value
is ignored.)
Da.2
Control
system
NOP instruction Set the NOP instruction
Da.3
Acceleration
time No.
–
Setting not required (Setting value
is ignored.)
Da.4
Deceleration
time No.
–
Setting not required (Setting value
is ignored.)
Da.5
Axis to be
interpolated
–
Setting not required (Setting value
is ignored.)
Da.6
Positioning
address/
movement
amount
–
Setting not required (Setting value
is ignored.)
Da.7
Arc address –
Setting not required (Setting value
is ignored.)
Da.8
Command
speed
–
Setting not required (Setting value
is ignored.)
Da.9
Dwell time –
Setting not required (Setting value
is ignored.)
Axis 1
positioning
data No. 1
Da.10
M code –
Setting not required (Setting value
is ignored.)
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.
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.