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3. SPECIFICATIONS
MELSEC-A
(a) Functions available with
the ACPU
common commands
Table 3.3 Functions List When Using a Dedicated Protocol
b .
a
I
I
I
\ E l
Function
Description
Number of Point
Processed per
Communications
Batch
units
Bit units
I
Bit units
BT
l ~ e v i c e
(
1
1
memory
Monitor
units
Bit units
units
Batch read
Batch write
Extension
file
register
l ~ d o m write)
/
ET
I
Monitor data
registration
I
i
Reads bit devices (such as
X, Y,
M) in units of 1
42H* 52H
ldavica
256 points
Reads bit devices (such as
X,
Y,
M) in units of 16
Specifies bit devices (such as
X, Y,
M) and devic
number in units of 16 devices at random and
I
-
I
45H, 57H Writes extension file registers (R) in units of 1
reoistar
64 points
I
I
Specifies the extension file registers (R) in units of
45H, 54H 1 register using block or device number and makes
10 points
a random write.
45H, 4DH
Sets the extension file registers
(R)
device
numbers to be monitored in units of 1 register.
20 points
Monitors the extension file register after monitor
4DH' 45H
data registration.
-
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