8.
COMMUNICATIONS USING DEDICATED
PROTOCOLS
MELSEC-A
(2)
Comment memory batch read (ACPU common command)
Designation
Method
1
St
No.
:
Station
number
Designation in protocol 1 is shown below.
I
Comment memory batch
read command
1
Computer
ChawbrueaA
Ill
I!
I
Numbor
of
characten
=
I
I
AJ71-4
Designation
of
the
range to
be
read
/'/?L/f/
lyTt,
plzl
HH
Character area
B
POINT]
To
designate the number
of
bytes, the following conditions must be met:
0
1
I
number
of
bytes
I
128
0
(Head address)
+
[(number
of
bytes)
-
11
s
Comment memory
capacity
comment memory data beginning with address
7DOH
(2000
in decimal)
in the PC CPU
of
station number"1". (Message wait time is
0
msec)
Computer
-
AJ71 C24
Check
su~
'
'
'
within thi
Indicates that:
(1) the content
of
address 07DOH
is
12H,
(2) the content
of
addreas 0701 H is ABH,
(3)
the content
of
address 07D2H
is
43H,
(4)
the content
of
address 07D3H
is
EFH,
(5)
the content
of
address
07MH
is
lCH,
and
(6)
the content
of
address 07D5H
is
57H.
(0
B)
(3)
(4)
(5)
(6)
-i
J
1
LJ
"3
'U
i
.d
1
1
8-98
D
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