12 CONTROL SUB FUNCTIONS

MELSEC-Q

[4] Setting the skip function using an external command signal

The skip function can also be executed using an "external command signal". The following shows the settings and sequence program example for skipping the control being executed in axis 1 using an "external command signal".

(1)Set the following data to execute the skip function using an external command signal.

(The setting is carried out using the sequence program shown below in section (2)).

 

 

 

 

 

Setting

 

Buffer memory address

 

 

 

Setting item

Setting details

Axis

Axis

Axis

Axis

 

 

 

value

 

 

 

 

 

 

1

2

3

4

 

 

 

 

 

 

 

 

 

 

 

External command

 

 

 

 

 

 

 

Pr.42

3

Set "3: Skip request".

62

212

362

512

 

 

 

 

function selection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

External command

 

 

 

 

 

 

 

Cd.8

 

1

Set "1: Validate external command".

1505

1605

1705

1805

 

 

 

valid

 

 

 

 

 

 

 

 

 

 

Refer to Section 5.7 "List of control data" for details on the setting details.

(2)Add the following sequence program to the control program, and write it to the PLC CPU.

Example

Skip function selection command

 

 

 

 

TOP

H0

K62 K3

K1

 

<Select skip request>

 

 

 

 

 

 

 

 

 

 

Skip request

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOP

H0

K1505 K1

K1

 

<Set external command valid>

 

 

 

 

 

 

 

 

 

 

External command valid

 

 

Input external command signal

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Mitsubishi Electronics QD75D Setting the skip function using an external command signal, Pr.42 Set 3 Skip request, K62 K3