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10
ADVANCED POSITIONING CONTROL
10.3.4 Wait start
In a "wait start", the "condition data" conditional judgment designated in " Da.13
Parameter" is carried out for the positioning data set in " Da.11 Start data No.". If the
conditions have been established, the "start block data" is executed. If the conditions
have not been established, the control stops (waits) until the conditions are
established.
Section (2) shows a control example where the "start block data" and "positioning data"
are set as shown in section (1).
(1)
Setting examples
(a)
Start block data setting example
Axis 1 start
block data
1st point
2nd point
3rd point
* The "condition data Nos." have been set in " Da.13 Parameter".
(b)
Positioning data setting example
Axis 1 position-
ing data No.
1
2
3
10
11
12
50
(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.
<1> The conditional judgment set in "condition data No. 3" is carried out before
execution of the axis 1 "positioning data No. 1".
Conditions established
Go to <2>.
Conditions not established
established
<2> Execute the axis 1 "positioning data No. 10, 11, 12, and 50" and stop the
control.
Da.11 Start
Da.10 Shape
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
11: Continuous path control
00: Positioning complete
00: Positioning complete
Execute positioning data No. 1, 2, and 3
Control stops (waits) until conditions are
Go to <1>.
10 - 11
MELSEC-A
Da.12 Special
Da.13
start command
Parameter
2: Wait start
0: Normal start
0: Normal start
3
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