t
8.
COMMUNICATIONS USJ&G;
REDiwm
PRQTOCOIS
MELSEC-A
(3)
Comment memory batch write
(ACPU
common command)
!De.ignrtion Method
I
St.
No.
:
SWion
number
Designation
in
protocol
1
is shown below.
I
Comment memory batch read command
ChndSrWUC
Ill
.
II
Sum
D.hfoc
the
daignmd
Numb
of
byb.
H..d
addma
I
I
Computer
CMt
eo&
n:m&:xF-)
Fulnbr
h.rpd.cirrul)
(2chuacWn
h.rad.clrrul)
(4sh&mdOn
-.ittinu
K
W
No.
PC
No.
st
E
HlL
HIL
I
Ill
I
HlL
II
AJ7l
(r4 Derignation
of
the
range to
be
re8d
No.
No.
p
A
PC
st.
1
byto
ti808
2 characterr.
prerred in 2 digits (hexadecimal).
Thedore,
1
-byte data
ir
ex-
HlL
HlL
POINT]
To
set the number
of
bytes, the following conditions must be met:
0
1
5
number of bytes
I
128
0
(Head address)
+
[(number
of
bytes)
-
1
J
I
Comment memory
capacity
.
IDesipnation Example
I
To write
4
bytes
of
comments to the area beginning with address OBB8H
(3000
in decimal)
in the PC CPU of station number
"0".
(Message wait time is
0
msec)
Check rum ir calculated wiihin thir range
Indicator that:
(1)
56H
ir
written to addrere OBBBH,
(2)
SAH
ir
written to addrerr
OBBH,
(3)
B5H
k
writton to
addrwr
OBBAH, and
(4)
12H it written to addrerr OBBBH.
8-99
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