3.
SPECIFICATIONS
..
I_
/MELSEC-A
(7)
Error code area
(X
axis:
address
45,
Y
axis:
address
345)
The code number of any error detected by the
AD71
is
written to
these addresses by the
OS.
Use
in conjunction with the error detec-
tion signal
(XB).
POINT
]
0
The error code area
is
used
by
the
AD71
OS
and data
must not
be
written here.
0
The
most
recent error code
is
written to
this
area.
The
absence of any error
is
indicated
by
a
"0"
in
this
address.
0
For error codes, refer to Chapter
8.
(8)
M
code area
(X
axis:
address
46,
Y
axis:
address
346)
The
"M
code" specified in the positioning data for the current
positioning operation
is
written to these addresses. The
M
code
number can be used to co-ordinate external equipment and processes.
I
b15 b7
bo
I
Lower
1
byte
=
M
coda
I
set
to 0.
M
code
specified
=
1
to
255
M
code
not
specified
=
0
Fig.
3.27
M
Coda
Area
I
POINT
I
I
I
I
Do
not write data to these addresses.
0
For
M
code data timing details, refer to Section
3.4.1
(16)
(WW
3-15).
3-34
IB
INAI 66101-A
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