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8.
COMMUNICATIONS USING DEDICATED PROTOCOLS
MELSEC-A
(b) Using the JW command (AnACPU common command)
1 is shown below.
1
Batch read (bit) command
\
Character area
A
.
St. No. :Station number
I
range to be read
/
0 (30H) indicates OFF,
I
M n l L l
and
1
(31
H)
indicates ON.
1
To designate the device range, the following conditions must be met:
I
I
I
1
s
number of device points
s
160
I
.
(Head device number)
+
[(number of device points)
-
11s maximum
device number
To write data to
5
points from M903 to M907 in PC NO. "0".
(Message wait time is 0 rnsec)
Check sum is calculated within this range
.
F,
E
a
QM
A1 SJ7t C24
Designation to turn OFF M903
Designation to turn ON M904
C o m p u t e r N O O O 1 J w o
x m
n d ~ .
Designation to turn ON M905
Designation to turn OFF M906
.
-
Designation to turn ON M907
UW,IL
A
C
K
*M
M o o 0 9 0 3
a, a, n.,
a.,
s . , n .
,u,
~ ) r
~ ) r , h
0
5
a.
,
a
0 0 0 1
nu,nx
0
1
1
0 1 6 3
a
, I I . , I I . ,
a,
a.
&,UU
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