12CONTROL SUB FUNCTIONS

[3]Setting the skip function from the PLC CPU

MELSEC-Q

The following shows the settings and sequence program example for skipping the control being executed in axis 1 with a command from the PLC CPU.

(1)Set the following data.

(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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Skip command

 

 

 

 

 

 

 

Cd.37

1

Set "1: Skip request".

1547

1647

1747

1847

 

 

 

 

 

 

 

 

 

 

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.

1)When the "skip command" is input, the value "1" (skip request) set in " Cd.37 Skip command" is written to the QD75 buffer memory (1547).

Example

No.19 Skip program

<Pulsate skip command>

<Save skip command ON>

<Write skip command>

<Turn OFF skip command memory>

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Mitsubishi Electronics QD75P, QD75D user manual Setting the skip function from the PLC CPU