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3. SPECIFICATIONS
J
.MELSEGA
(9) Start data number area (X axis :address 0, Y axis :address 300)
Specify positioning data numbers during positioning start.
Positioning processing is executed on the basis of positioning data of
numbers specified in this area.
The start data number and pointer
of the 20th point are valid
in the
positioning control mode.
Only the start data number of the first point is valid in the speed/posi-
tioning control switching mode and speed control mode. The pointer
value is invalid.
Positioning is executed sequentially by data number using a one-time
start signal in the positioning control mode, and positioning operations
are completed by positioning END of positioning pattern 00.
To execute the above series of positioning operations continuously, the
first data number (start data number) and the start axis of the positioning
operation series are registered. This area is called a start data number
area.
A
start data number area with a maximum
of 20 points can be set as
shown in Fig.
3.34.
X-axis
j
Y-axis
address
I
address
0
I
300
1
I
301
2
I
302
3
I
303
4
I
304
I
I
1
1
1
1
1
1
I
l
l
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
I
l
l
I
l
l
I
l
l
I
l
l
37
I
337
I
38
338
39
339
I
I
I
I
I
I
I
I
I
I
I
I
I
Start data No.
Start data No.
Start axis
Start data No.
Start axis
Start data No.
Start axis
Pointer
......
1 st point
.......
Start axis for this start data No.
depends on start signal (Y20 to
3rd point
J
7
....
For 2nd to 20th points, set start
data No. and axis.
For start axis details, refer to
page 3-52.
J
20th point
J
..
Set the number of switching times of the se-
ries in a positioning operation.
Example
r
hen executing only 1st point positioning
\
Pointer
=
0
When executing positioning to the 4th point
Pointer
=
3
/
Every time a point increases, the pointer
value decreases by 1.
When positioning is completed normally, the
pointer becomes O.(except when positioning
was stopped).
The set value is cleared to 0 when the power
goes ON.
Fig. 3.34 Start Data Number Area
0
When positioning
of the start data number
of the 20th point
is
completed, positioning is completed even
if
the value of a pointer is
not 0 (however, an error code is set).
0
The BUSY signal remains ON during switching to the next point after
positioning of the 1st point has been completed.
3
- 5 2
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