C.
r
r
r
L
r
L,
P
..
.
-
..
P
Y
F
L
P-
i-
r
L..
c
,P
c
IO.
COMMUNICATIONS
IN
THE BIDIRECTIONAL
,
..
,.
..
.
MODE
-
MELSEC-A
(3)
Data receive processing
:heck sum disabled
1
-
An1
c24
Received data read requert Xnl
Received data read completed
Y(.+I)
1
PCw@rogm
(4)
Data receive program examples
Ixample
1
Check sum enabled, In word units (buffer memory area allocation: default)]
To
store 'AJ71C24
[
I",
received from a computer,
to
DO
to
D4
of
a PC CPU.
(AJ71 C24
I/O
address: 1AO to 1
BF)
Roceked data road
Received
data
Iongth
is
stored
Rweived data read
PC CPU (program)
PC
CPU
pfognm
example
1
X/81H
W,
41H
184H
AJ71
C24
buffer
memory
,Do
W.
41H
I
1
I
Sequence program
data memory
10-21
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