6.
PROGRAMMING
/MELSEC-A
6.4.2
Reading and writing data
(1
1
Read from remote
1/0
station
[Format]
1
II
Execution condi
II
Description
I
nl
1
AD71
110
number assignment from master station
~~ ~ ~
r-
K.H1
I
n2
1
Head buffer address to be read
I
K.H
I
D
n3
W
Head
link register to which
data
will
be
written
K.
H
Number
of
data words to
be
read
(1
to
16)
Example: Reading one word from buffer address
600
of
the
AD71
located
at
1/0
address
X,
Y130
to
14F
in
a
remote
1/0
station.
To
read once on receiving
the
start
signal
(Start signal)
Hi'
Interlock conditions for
RFRP
execution (Y13E, X14E.
Y13F. X14F)
11
RST
M2
1
When remote station executes
RFRP instruction, X14E turns
on and data
is
transferred.
I
RST
Y13E
,
RFRP instruction execution
f
Iq
reset
6-48
IBlNAJffi101-A
.
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