c-
L..
..
-
c
c
.,--
P
1,
GENERAL
DESCRIPTION
,,...
,
~
MELSEC-A
1.1.3
Unk
with
a
computer
through
data
link
systems
(Twc-tjer
system)
M
:
Masterstation
L
:Localaation
R
:
Remote
Vo
station
Um
:
Local
/master
station
:
for
the
third tier
I
:Thir&ierMrtatior
0
autd/mcmm
d&a
St.bionthatcan
(Three-tier
system)
In
a system connected through the following data link system,
if
the system
contains a PC CPU connected to a computer via an AJ71C24, data com-
munications is possible between the computer and a PC CPU not equipped
with the AJ71 C24.
However, communications is not possible with AOJ2CPUP23/R23 or
AOJ2P25/R25 modules.
(1)
PC CPU
in
the MELSECNET (It)
0
Master/Local stations:
Can communicate all data (device memory, programs, etc.).
0
Remote
I/O
station:
Can communicate only special-function module’s buffer data.
(2) PC CPU
in
the MELSECNET/B
0
Master/Local stations:
Can communicate all data (device memory, programs, etc.).
I
1
When
a
computer
is
connected
to
a
local
station:
When
a
computer
is
connected
to
a
master
station
for
the
third tie:
n
When
a
computer
is
connected
to
a
third-tier
local
station:
@-@J
The station
that
can
send/mceive
data
does
ne4
vq
even
if
the
aecond
tier
uses
a MELSECNETB
and
the
third tier
uses a MELSECNET
(11).
1-9
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
