Mitsubishi MELSEC-A series, Руководство по программированию

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7. APPLICATION INSTRUCTIONS
7
−
103
MELSEC-A
POINT
The area equal to the number of special function modules, which are loaded to
corresponding remote I/O station, starting with the head device number of the
master to remote I/O station link registers set with link parameters is used by
PC CPU OS. Therefore, this area cannot be used as data storage registers.
Example
Link parameter setting
Link register (W ): Master to remote I/O station No. 2
W050 to W09F
The PC CPU uses these areas when the RFRP instruction only is used. So, be
sure to set the range of master to remote I/O station link registers (W ).
Master station
RFRP instruction
Remote I/O
station
Data
Control of OS
The number of points which is equal to the number of
special function modules of remote I/O stations are
required.
↓
•
Use link registers (W ).
Assignment of remote I/O station
to master station link register
•
Use link registers (W ).
Assignment of remote I/O station to
master station link register
No. 2
To other station
Special function module x 2
To other
station
W050 and W051 (2 points)
are used by the OS of the
PC CPU.
From W052 to W09F can
be used for data storage.
Range of the link registers
(W ) of master to remote
I/O station No. 2 set with
link parameters.
P
o
w
e
r suppi
y
modul
e
Remote I/O
modul
e
A
X
10
A
X
10
A
X
10
A
X
10
A
68A
D
C
A
D
71
A
Y
10
A
Y
10