Справочник Пользователя для Mitsubishi Electronics QD75P1N

10 - 14

MELSEC-Q

10 HIGH-LEVEL POSITIONING CONTROL

10.3.6 Repeated start (FOR loop)

In a "repeated start (FOR loop)", the data between the " block start data" in which "4:
FOR loop" is set in "   Da.13   Special start instruction" and the "block start data" in
which "6: NEXT start" is set in "   Da.13   Special start instruction " is repeatedly
executed for the No. of times set in "   Da.14   Parameter". An endless loop will result if
the No. of repetitions is set to "0".
(The No. of repetitions is set in "   Da.14   Parameter" of the " block start data" in which
"4: FOR loop" is set in "   Da.13   Special start instruction".)

Section [2] shows a control example where the " block start data" and "positioning
data" are set as shown in section [1].

[1] Setting examples

(1) Block start data setting example

Axis 1 block

start data

Da.11

Shape

Da.12

Start data No.

Da.13

Special start

instruction

Da.14

Parameter

1st point

1: Continue

4: FOR loop

2nd point

1: Continue

0: Block start

–

3rd point

0: End

6: NEXT start

–



The "condition data Nos." have been set in " Da.14 Parameter".

(2) Positioning data setting example

Axis 1 position-

ing data No.

Da.1

Operation pattern

01: Continuous positioning control

3 00:

Positioning

complete



11: Continuous path control

11 00:

Positioning

complete



01: Continuous positioning control

51 00:

Positioning

complete



[2] Control examples

The following shows the control executed when the " block start data" of the 1st
point of axis 1 is set as shown in section [1] and started.

<1> Execute the axis 1 "positioning data No. 1, 2, 3, 10, 11, 50, and 51".

<2> Return to the axis 1 "1st point block start data". Again execute the axis 1

"positioning data No. 1, 2, 3, 10, 11, 50 and 51", and then stop the control.
(Repeat for the No. of times (2 times) set in Da.14 .)