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3. SPECIFICATIONS
MELS€GA
3.3.3
AlSD71
operation descripaion
Fig. 3.2 PC initiated positioning procedure
I
START
I
L
=
Operating data write?
I
AlSD71 buffer memory all clear
.
,
, ,
. . .
,
Clear the AlSD71 buffer memory using the peripheral device.
Set parameters
' .
. . . . .
See section 3.5.1.
'
Although data may be set by the sequence
program, it is recommended to set the data
(especially parameters and zero point return
data) using the peripheral device or AD71TU.
Set zero return data
. . .
'
.
.
See section 3.5.2.
However, those parameters (acceleration/de-
celeration time, deceleration time for an m e r -
gency stop, and positioning mode) that cannot
be set
in
the peripheral device or AD71TU
1
1
Set positioning data
. .
.
.
. . . .
See section 3.5.3.
,
must be set with a sequence program.
Zero return start signal(Y23, Y24)
Yes
Write positioning start data No.
into buffer memory.
.
, , ,
. . . .
Write start data numbers into X-axis addresses 0 and Y-axis
addresses 300.
b
Next position required?
END
(1) Section 6 gives details about zero return start and positioning start conditions.
(2) Table 3.4 shows the data needed for control signals (positioning functions) from the PC CPU.
3 - 8
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