Repeated Start (For Condition) - Mitsubishi Electric MELSEC-Q Series User Manual

10.3.7 Repeated start (FOR condition)

In a "repeated start (FOR condition)", the data between the "block start data" in which
"5: FOR condition" 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 until the establishment of the conditions set in the "condition data".
Conditional judgment is carried out as soon as switching to the point of "6: NEXT start"
(before positioning of NEXT start point).
(The "condition data" designation is set in "[Da.14] Parameter" of the "block start data"
in which "5: FOR condition" 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
1st point
2nd point
3rd point


(Note): The "condition data Nos." have been set in "[Da.14] Parameter".
(2) Positioning data setting example
Axis 1 positioning
data No.
1
2
3

10
11

50
51

[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 axis 1 "positioning data No.1, 2, 3, 10, and 11".
<2> Carry out the conditional judgment set in axis 1 "condition data No.5"
Conditions not established
Go to <1>.
Conditions established
complete the positioning.
(Note-1): Conditional judgment is carried out as soon as switching to NEXT start
point (before positioning of NEXT start point).
Chapter 10 High-Level Positioning Control
[Da.11] [Da.12]
Shape Start data No.
1: Continue 1
1: Continue 10
0: End 50
[Da.1]
Operation pattern
01: Continuous positioning control
01: Continuous positioning control
00: Positioning complete
11: Continuous path control
00: Positioning complete
01: Continuous positioning control
00: Positioning complete
Execute "Positioning data No.50, 51" and
10 - 14
[Da.13]
Special start
instruction
5: FOR condition
0: Block start
6: NEXT start
Execute "Positioning data No.50, 51".
[Da.14]
Parameter
5
–
–
(Note-1)
.