20 nop instruction, Melsec-q, Point – MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D User Manual

Page 410: Operation, Positioning data setting examples, Restrictions

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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.

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