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4 FUNCTIONS
MELSEC-QnA
Local station (station No. 2)
Buffer memory
Remote output (RY)
to
Remote input (RX)
to
to
Remote register
(RWw)
Remote register
(RWr)
to
Link scan
Link scan
Link scan
Link scan
Link scan
Link scan
Link scan
Programmable controller CPU
SET Yn0
FROM
TO
FROM
FROM
FROM
FROM
FROM
TO
Link scan
Refresh instruction
Receive area
from local
station No. 1
Send area
for host
(station No. 2)
Receive area
from master
station
Receive area
from master
station
Receive area
from master
station
Receive area
from master
station
Receive area
from local
station No. 1
Send area
for host
(station No. 2)
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6
3
9
9
12
12
16
13