7. APPLICATION INSTRUCTIONS
7
−
97
MELSEC-A
7.8.2 Remote I/O station data read, write
(RFRP, RTOP)
Available Device
Bit device
Word (16-bit) device
Constant
Pointer
Level
Ca
rr
y
fla
g
Err
o
r
fla
g
X Y M L S B F T C D W R A0
A1
Z V K H P I N
D
igit specification
In
d
e
x
M9012 (M9010, M9011)
n1
O
O
n2
O
O
(S)
O
(D)
O
n3
O
O
O
O
REMARK
•
"n1" is specified by the head I/O number of special function module when viewed from
the master station.
Example)
Remote I/O station No. 2 is assigned by parameters to X100 to X17F and Y140 to Y190.
AnS
AnN
AnSH
An A1FX
A3H
A3M
A3V AnA
AnU, A2AS
A2USH-S1
A2USH board
QCPU-A
(A Mode)
A0J2H
A2C
A52G
A73
A3N
board
Applicable
CPU
O O O O X O
O
O O O O
Remark
RFRP
n1 n2
(D)
n3
RTOP
n1 n2
(S)
n3
Write command
Read command
n1
Head I/O number of special
function module specified by
master station.
RFRP
Head address inside intelligent
module which stores data to be
read
n2
RTOP
Address inside special function
module where data will be written
(D) RFRP
Head number of link register
which will store read data
(S) RTOP
Head number of link register
which stores data to be written
n3
Number of data read/written (1 to
16)
Setting data
Station
No.2
To other station
To other station
Head I/O number: H140
Use these in the RFRP/
RTOP instructions.
I/O numbers viewed from
the master station
I/O numbers of the station
P
o
w
e
r suppi
y
modul
e
Remote I/O
modul
e
A
X
10
A
X
10
A
X
10
A
68A
D
A
D
71
A
Y
10
A
Y
10
A
X
10
Summary of Contents for MELSEC-A series
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