Mitsubishi MELSEC-A A1SD71-S2 User Manual page 57

3. SPECIFICATIONS
MELSEGA
I
Source
of
data
Dorcriptlon
Periphoral dovlco
o
AD7lTU
to
X-axis positioning start
I
data
Write enabled when
axis BUSY signals
both X-axis and Y-
are off.
Area for positioning start data
numbers, etc. (For X axis)
Depends on data
3 : :
Y-axis positioning start
505
I
data
Unused
-
,
Write enabled when
axis BUSY signals
both X-axis and Y-
are
off.
Area for positioning start data
numbers, etc (For Y axis)
Depends on data
I
Unused
-
For
OS
767
Write disabled
OS RAM.
Writing here is notal-
lowed.
Write disabled
information
Positioning
4271 Unused
I
-
-
sitioning speed
I
X axis positioning data area des-
cribed in Section 3.5.3 (Maximum
400
positions)
Data format as
'Positioning
Positioning
Dwell time:
Positioning
information
:
follows:
Write enabled at
speed
:
2
bytes (16 bits) any
time
2 bytes (16 bits)
2 bytes (16 bits)
4 bytes (32 bits)
address
:
Block transfer of po-
sitioning data from
peripheral device to
A1 SD71 is only en-
abled when PC
ready signal is off.
Y axis positioning data area des-
400 positions)
cribed in Section 3.5.3 (Maximum Write enabled at
Data format as for
X
axis.
any time
tion 3.5.1 (X axis)
Parameter area explained in Sec-
Dwell
time
I
>
Parameter area explained in Sec-
tion 3.5.1 (Y axis)
1
when
PC
ready sig-
Write only enabled Write only enabled
when PC ready sig-
nal
is
off
X-axis parameters
Y-axis parameters
X-axis zero return data
Y-axis zero return data
. -
Zero return data area described in
Section 3.5.2 (X axis)
nal is
off
Zero return data area described in
Section 3.5.2 (Y axis)
I
The above data may be read at any time.
Addresses are expressed in decimal ( 1 address
=
2 bytes (16 bits))
Fig.
3.28
Buffer Memory Map
3
-
46