Communication Between The Master Station And Local Station - Mitsubishi A1SJ61BT11 User Manual

4 FUNCTIONS

4.4 Communication Between the Master Station and Local Station

The overview of the communication between the master and local stations is
described.
PC CPU
1
SET Yn0
2
SET Yn8
5
FROM
5
FROM
7
TO
7
TO
10
TO
10
TO
15
FROM
15
FROM
POINT
The master station sends only the data for the stations that have started the data link.
The data for the stations that have not started the data link are not sent.
Master station
Refresh specification
Data link startup
by EEPROM
parameters
Buffer memory
Remote input (RX)
4
Receive area
from local
Link scan
station No. 1
4
Receive area
from local
Link scan
station No. 2
to
Remote output (RY)
8
Send area
to local
Link scan
station No. 1
8
Send area
to local
Link scan
station No. 2
to
Remote register
(RWw)
11
Send area
to local
Link scan
station No. 1
11
Send area
to local
Link scan
station No. 2
to
Remote register
(RWr)
14
Receive area
from local Link scan
station No. 1
14
Receive area
from local
Link scan
station No. 2
to
4 - 10
Local station (station No. 1)
1
Refresh specification
Buffer memory
Remote output (RY)
Host
(station No. 1)
Link scan
send area
4
Receive area
from local
Link scan
station No. 2
to
Remote input (RX)
Receive area
from master
Link scan
station
Receive area
from master
Link scan
station
to
Remote register
(RWr)
Receive area
from master
Link scan
station
Receive area
from master
Link scan
station
to
Remote register
(RWw)
Host
(station No. 1) Link scan
send area
14
Receive area
from local
Link scan
station No. 2
to
MELSEC-A