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4.
LINKING TO Tt
AND THE AJ71
'E AnACPU (WITH DEDICATED INSTRUCTIONS)
PT32-S3
MELSEC-A
(1)
Communications procedures of control I/O signals
(a) Turning ON the MINI-S3 communications start signal of the master
module from the PC CPU starts the M I N I 4 3 data link.
(b) Control input signals from the A64RDC are stored automatically in
the batch refresh received-data area in the master module
(c) Control input signals stored in the batch refresh received-data area
are refreshed to the received-data storage devices as set with
parameters.
(d) The send data storage device ON/OFF information set by automatic
refresh setting is automatically refreshed to the batch refresh send
data area.
(e) Control output signals stored in the batch refresh send data area are
transmitted to the A64RDC.
A64RDC
AnACPU
Automatic
AJ71
PT32-S3
master
module
S3
link
OccuDied
stations
: 4
MINI- Set station
NO.
: 1
Automatic refresh
setting parameters
Received-data
storage device:M10
Send data storage
device: M1OO
Total number of
remote I/O stations: 4
L
M15 detected flag
Reset switch ON-
Reset switch ON-
detected flag reset
Batch refresh received-data areas
I
Address
Station
2
Station
1
x x x x x x x x x x x x x x x x
11 1
iF
1E
i D
i C 1B 1A
19 i 8 17
16
15 14
13
12
11
10
Station
4
T
Station 3
Batch refresh send data areas
Address
Station
2
Station 1
"
[ l F [ t E ~ l D ~ l C ~ l ~ / 1 4 ( 1 B ~ 1 8 / 1 7 ~ 1 6 ~ 1 5 / 1 4 ~ 1 3 ~ 1 2 ) 1 1
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
1 1 0 1
Station
4
Station
3
Control input signals
X8
I
XlF
Control output signals
1
I
Reset swi t :
ON.
1
d d e d e d
fkg
resel
slgnal
YlF
4 - 5
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