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2. SYSTEM CONFIGURATIONS
MELSEC-A
(2)
The following tables list the functions available when the external
devices are linked with the
PC CPU
modules making an rn : n configura-
tion.
(a) The interface used to set dedicated protocols 1,
2, 4:
1) Functions available when using external devices
Interfaces f o r Dedicated
Available Functions
Protocol
Device memory
Extension file
register
Buffer memory
AJ71C24 of the
self
Spec a f ~ n c -
t on
module's
3 ~ f f e r
memory
Sequence1
microcomputer
program
Comment
Parameter
PC CPU
Global
Self-loopback
test
Readlwrite
1
o
1
o
Test
O
0
Monitor
O
0
Readlwrite
1
o
1
o
Test
o
o
Monitor
o
o
Readlwrite
o
o
Readlwrite
o
o
Readlwrite
o
o
Readlwrite
o
o
Readlwrite
o
o
Remote
RUNISTOP
PC CPU type
read
Input signal (X)
ONIOFF
I
0
I
0
Transmission
of received data
1
0
1
0
N o t e
Including exten-
sion devices
Including exten-
sion Comments
*
If full-duplex transmission is possible with the external device, data communica
tions i n the dedicated protocol mode is possible with the RS-232C interface.
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