10 HIGH-LEVEL POSITIONING CONTROL

MELSEC-Q

Start time chart

The following chart shows a time chart in which the positioning data No. 1, 2, 10, 11, and 12 of axis 1 are continuously executed as an example.

(1) Block start data setting example

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Da.13

 

 

 

 

Axis 1 block

 

 

 

Da.11

 

 

 

Da.12

 

 

 

 

 

Da.14

 

 

 

 

 

 

 

 

 

Special start

 

 

 

start data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shape

 

Start data No.

Parameter

 

 

 

 

 

 

instruction

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1st point

 

1: Continue

 

1

 

0: Block start

 

 

2nd point

 

0: End

 

10

 

0: Block start

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(2) Positioning data setting example

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Axis 1 position-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Da.1

 

 

 

 

 

 

 

 

ing data No.

 

 

Operation pattern

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

11: Continuous path control

 

 

 

 

 

 

 

 

2

 

 

00: Positioning complete

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

11: Continuous path control

 

 

 

 

 

 

 

 

11

 

 

11: Continuous path control

 

 

 

 

 

 

 

 

12

 

 

00: Positioning complete

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(3) Start time chart

V

Operation pattern

Dwell time

Dwell time

Positioning data No.

1(11)

10(11)

11(11)

 

2(00)

 

12(00)

 

 

 

 

t

Positioning start signal

[Y10]

PLC READY signal

[Y0]

QD75 READY signal

[X0]

Start complete signal

[X10]

BUSY signal

[XC]

Positioning complete signal [X14]

Error detection signal

[X8]

Cd.3 Positioning start No.

Cd.4 Positioning start point No.

1st point [buffer memory address 26000] 2nd point [buffer memory address 26001]

7000

1

-32767 (8001H)

10(000AH)

Fig. 10.3 Start time chart for high-level positioning control (block start)

10 - 25

Page 439
Image 439
Mitsubishi Electronics QD75D, QD75P user manual Start time chart, Positioning data setting example