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MELSEC-
A
5 PRELIMINARY INFORMATION
(b) An example for reducing each area is shown below.
(Example) To transmit and receive 20-word data to connect eight R2
modules
Transmission size R2 side head address
Master station side offset
address
Area name
Address Value Address Value Address Value
Status storage area
R2
10H
Default value
R2
11H
R2
13H
Transmission area 1)
R2
14H
Default value
R2
15H
R2
17H
Default value
Transmission area 2)
R2
18H
14H
R2
19H
R2
1BH
1C0H
Reception area
R2
1CH
14H
R2
1DH
R2
1FH
1D4H
Initialization area
R2
20H
Default value
R2
21H
R2
23H
EEPROM function area
R2
24H
0H
R2
25H
R2
27H
User registration frame area
R2
28H
0H
R2
29H
R2
2BH
Monitor transmission area 1)
R2
2CH
0H
R2
2DH
R2
2FH
Monitor transmission area 2)
R2
30H
0H
R2
31H
Default value
R2
33H
Default value
0
H
M
1A0
H
M
1C0
H
M
1D4
H
M
1E7
H
M
R2 0
H
R2 1BF
H
R2 19F
H
R2 400
H
R2 213
H
R2 413
H
R2 200
H
Master station automatic update buffer
(offset address)
R2 buffer memory
Blank (Area not updated automatically)
Blank (Area not updated automatically)
Blank (Area not updated automatically)
Reception area
Initialization area (1A0
H
worth)
Transmission area 1)
Status storage area (20
H
worth)
Transmission area 2) (14
H
worth)
Reception area (14
H
worth)
Initialization area
Transmission area 1)
Status storage area
Transmission area 2) area
Reduce area to 1E8
H
!