Mitsubishi Electronics AJ65BT-D75P2-S3 User Manual
10 - 14
MELSEC-A
10 ADVANCED POSITIONING CONTROL
10.3.7 Repeated start (FOR loop)
In a "repeated start (FOR loop)", the data between the "start block data" in which "5:
FOR loop" is set in "
FOR loop" is set in "
Da.12 Special start command" and the "start block data" in which
"7: NEXT start" is set in " Da.12 Special start command" is repeatedly executed for
the No. of times set in " Da.13 Parameter". An endless loop will result if the No. of
repetitions is set to "0", and the data between "5: FOR loop" and "7: NEXT start" will be
repeated until the control is stopped by a "stop command".
(The No. of repetitions is set in " Da.13 Parameter" of the "start block data" in which
"5: FOR loop" is set in " Da.12 Special start command".)
the No. of times set in " Da.13 Parameter". An endless loop will result if the No. of
repetitions is set to "0", and the data between "5: FOR loop" and "7: NEXT start" will be
repeated until the control is stopped by a "stop command".
(The No. of repetitions is set in " Da.13 Parameter" of the "start block data" in which
"5: FOR loop" is set in " Da.12 Special start command".)
Section (2) shows a control example where the "start block data" and "positioning data"
are set as shown in section (1).
are set as shown in section (1).
(1) Setting examples
(a) Start block data setting example
Axis 1 start
block data
Da.10 Shape
Da.11 Start
data No.
Da.12 Special
start command
Da.13
Parameter
1st point
1: Continue
1
5: FOR loop
2
2nd point
1: Continue
10
0: Normal start
–
3rd point
0: End
50
7: NEXT start
–
* The "condition data Nos." have been set in " Da.13 Parameter".
(b) Positioning data setting example
Axis 1 position-
ing data No.
Da.1 Operation pattern
1
01: Continuous positioning control
2
01: Continuous positioning control
3 00:
Positioning
complete
10
11: Continuous path control
11 00:
Positioning
complete
50
01: Continuous positioning control
51 00:
Positioning
complete
(2) Control examples
The following shows the control executed when the "start block data" of the 1st
point of axis 1 is set as shown in section (1) and started.
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 start block data". Again execute the axis 1
"positioning data No. 1, 2, 3, 10, 12, and 50", and then stop the control.
(Repeat for the No. of times set in Da.13 .)
(Repeat for the No. of times set in Da.13 .)