Mitsubishi Electric MELSEC-A Manual Book page 16

2. SYSTEM CONFIGURATIONS
MELSEC-A
2.2
System Configuration for Access to PC CPUs of Other Stations Through the
MELSECNET
Using a dedicated protocol enables the computer to communicate with PC
CPUs connected via the MELSECNET.
Through a PC CPU loaded with a computer link module and connected to the
computer, data can be communicated with PC CPUs unloaded with a com-
puter link-module.
=I/
Master station
(M)
P C
\
PC
tu&:
1 .E)
Local
station 1 ( L l )
(n
s
31)
PC
Local
station n (Ln)
. .
. .
0 0 0 0
CPU
J
I
/ 1
CPU
MELSECNET
( I t ) , MELSECNET/6
All data in the device memory can be transmitted and received.
Range of PC CPUs that are communicable from computer
(in the
case
of
the
above system configuration)
1
ComDuter-
I
PC CPUs that are Communicable
1
I
Conint;d
from Computer
M I L l I L 2 I L 3
Station
L1
X X
M
0
0
0
0
L1
0 0
X X
L2
0
X
X
0
L3
X
0
X
0
Fig. 2.4 System Configuration (IV)
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