L.
c
i
r
L
r
i
L
r
,
L
8.
COMMUNICATIONS USING DEDICATED
PROTOCOLS
MELSEC-A
(4) PC CPU number
The PC CPU number determines which PC CPU on MELSECNET(II),
MELSECNET/B to access.
The PC CPU number may be from OOH to 40H/20H
(00
to 64/32) in
2-digit ASCII (hexadecimal).
(a) Accessing PC CPUs equipped with AJ71C24 to which a computer
is connected
Set
all
PC CPU numbers to
FF
(self)
using
the computer. Use any
function except the on-demand function.
(b) Accessing PC CPUs on MELSECNET(II), MELSECNET/B equipped
with AJ71C24
1)
When computer and master station are connecterd
MELSECNET(I1) local and remote
I/O
stations MELSECNET/B
local stations: Set each slave link station number (1 to 64/32) in
hexadecimal (01 H to 40H/20H)
MELSECNET(I1) master stations, MELSECNET/B master sta-
tions: Set the PC CPU number to OOH
(c) The range
of
PC CPUs which can be accessed by setting the PC
2) When computer and local station are connected
CPU numbers is shown below.
PC CPU
loaded
wllh AJ71C21
PC CPUs
lo
which
a
link
is
possible
(PC CPU number)
connected
14
(4)
r3
(3)
12
(2)
I1
(1)
R4
(4)
W
(3)
L1 (1)
M
(0)
Sell
to cornputor
(FF)
I
M
1ol-lolololo*lIxIxIxIxl
I
L1 lolol-IxIxIxIx1xIxlxI
1
Wm
X
X
X
-
X
X
0
ox
X
I1
1
x
Io
Io
10'11
0
-x
X
00
o
Access
to
dl
devioes
possible
by
setting
appropriate
o
'1
Accese
to
special-function
module buffer
mry
po8aible
by
PC
CW
numbers
setting
appropriate
PC
CW
numben
rPOlNTl
If MELSECNET(I1) is replaced by MELSECNET/B
in
either tier, the range
of PC CPUs which can be accessed remains the same.
8-
13
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
