.
.
..
.
..
.
..
.
...
.
.
.
3.
SPECIFICATIONS
MELSEC-A
(1)
Functions available
with
the
ACPU
common commands
Table
3.3
Functions List
When
Ueing
a
Dedicated Protocol
Function
Device
memory
Command
Number
of
Polnl
~~
Exten-
sion file
register
Batch
read
Batch
write
Test
wrlte)
("m
Monitor
data
entry
Monitor
Bit
units
BR
Word
units
Bit
units
Bw
Word
units
Bit
units
BT
Word
units
wT
Bit
units
BM
Word
units
WM
Bit
units
Word
units
MB
MN
Batch read
Batch write
(random write)
Monitor data
registration
Monitor
ASCII
Code
Description ProceBud
per
Cornmunicatlon~
52H
256
points
Reads bit devices (such
as
X,
Y,
M)
in units of
1
device.
I
Reads bit devices (such
as
X,
Y,
M) in units of 16
32 words
davices.
I
(512 points)
I
57H, 52H
-
.
.
.
.
-
.
.
..
Reads word drvices (such as D,
R,
1,
C)
in units
of
1
device.
64
points
bit devices (such
as
X,
Y,
M)
in units of 1
160
points
device.
I
I
1
Writes bit devices (such as
X,
Y,
M)
in units of 16
10
words
devices.
(1
60
points
)
1
SH,
SH
I
Writes word devices (such as D.
R,
T,
C)
in units
of 1 device.
64
points
42H,
54H
Specifies bit devices (such as
X,
Y,
M)
and
device number in units of 1 device at random 20 points
and sets/rrsotr
the
device.
~
SH. 54H
setshesets the device.
42H, 4DH
I
Sets bit devices to be monitored (such as
X,
Y,
M)
in units of
1
device.
1
40 points '1
Sets bit devices to be monitored (such
as
X,
Y,
20 words *1
M)
in units of 16 devices. (320 points
)
1,
C)
in units of
1
device.
Sets word devices to be monitored (such
as
D,
R,
SH,
4DH
2o
points
I
-~
I I
i
4DH, 42H
Reads data from devices
for
which device data
registration has been made.
4DH, 4EH
45H,
52H
Reads extension file registers
(R)
in units of 1
register.
Writes extension file registers
(R)
in units of
1
register.
Specifies the extension file registen
(R)
in units
makes
a
random write.
64 points
45H,
SH
64 points
45H, 54H of
1
register using block or device number and
10
points
45H,
4DH
I
Sets the extension
file
registers
(R)
device num-
1
2o
points
bers to be monitored in units of
1
register.
4DH,
45H
I
Monitors the extension file register after monitor
data registration.
1-1
3-7
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