164
S yst
em
M
essages
T he
S yst
em
M
essages
ar
e
t
he
dat
a
r
el
at
ed
t
o
t
he
over
al
l
syst
em
of
t
he
devi
ce.
S yst
em
E xcl
usi
ve
M
essages
S yst
em
E xcl
usi
ve
m
essages
ar
e
used
t
o
exchange
t
he
syst
em
and
voi
ce/
r
egi
st
r
at
i
on
dat
a.
T hese
al
l
ow
you
t
o
execut
e
bul
k
dum
p
oper
at
i
on,
sendi
ng
and
r
ecei
vi
ng
al
l
t
he
dat
a
of
t
he
E L -
900
i
ncl
udi
ng
r
egi
st
r
at
i
ons
t
o
and
f
r
om
an
ext
er
nal
devi
ce.
T hi
s
i
s
especi
al
l
y
usef
ul
f
or
you
t
o
bui
l
d
up
t
he
l
i
br
ar
y
of
t
he
r
egi
st
r
at
i
on
dat
a
i
n
a
devi
ce
l
i
ke
a
har
d
di
sk.
E xam
pl
es
of
E xchangi
ng
t
he
D at
a
U se
t
he
f
ol
l
ow i
ng
exam
pl
es
t
o
send
(
or
r
ecei
ve)
t
he
r
egi
st
r
at
i
on
dat
a
t
o
(
or
f
r
om
)
a
per
sonal
com
put
er
(
a
sequenci
ng
sof
t
w ar
e)
.
F i
r
st
,
you
need
t
o
connect
your
E L -
900
w i
t
h
a
per
sonal
com
put
er
(
a
s
equenci
ng
s
of
t
w ar
e)
us
i
ng
a
S er
i
al
C abl
e
or
a
M
I
D I
cabl
e
(
page
161)
.
N O T E :
Y o u
al
so
n eed
a
seq u en ci
n g
so f
t
w ar
e,
w hi
ch
has
been
pr
oper
l
y
i
nst
al
l
ed
i
n
t
he
per
sonal
com
put
er
,
and
w hi
ch
can
send
and
r
ecei
ve
syst
em
excl
usi
ve
m
essages.
S end
t
he
R egi
st
r
at
i
on
D at
a
f
r
om
t
he
E L -
900
t
o
t
he
P er
sonal
C om
put
er
(
P C )
･
P r
ep ar
at
i
o n
1
S et
t
he
S t
r
i
ngs
voi
ce
on
t
he
U pper
K eyboar
d
of
t
he
E L -
900.
P r
ess
S T R I
N G S
but
t
on
f
or
t
he
U pper
K eyboar
d
V oi
ce
1
sect
i
on,
and
sel
ect
S t
r
i
ng
1
f
r
om
t
he
S t
r
i
ngs
M
enu.
2
S t
or
e
t
he
r
egi
st
r
at
i
on
t
o
t
he
R egi
st
r
at
i
on
M
em
or
y
but
t
on
1.
W
hi
l
e
hol
di
ng
dow n
t
he
M
.
but
t
on
P r
ess
t
he
R egi
st
r
at
i
on
M
em
or
y
but
t
on
1.
･
S endi
ng
t
he
R egi
st
r
at
i
on
D at
a
3
S end
t
he
R equest
-
t
o-
S end
al
l
R A M
m
essage,
ﾒF 0,
43,
70,
70,
10,
F 7ﾓ
(
H exadeci
m
al
)
,
f
r
om
t
he
sequenci
ng
sof
t
w ar
e
(
P C )
t
o
t
he
E L -
900.
O nce
t
he
E L -
900
r
ecei
ve
t
he
R equest
-
t
o-
S end
al
l
R A M
m
essage,
t
he
E L -
900
aut
om
at
i
cal
l
y
sends
al
l
r
egi
st
r
at
i
on
dat
a
i
n
t
he
al
l
r
egi
st
r
at
i
on
num
ber
s
t
o
your
P C .
Y ou
can
st
or
e
t
he
r
egi
st
r
at
i
on
dat
a
i
n
a
f
i
l
e
on
your
P C .
A
p
p
e
n
d
ix
14
N O T E :
D
ep en d i
n g o n t
h e cap aci
t
y o f y o u r
seq u en ci
n g
so f
t
w ar
e,
y o u
m
ay
n eed
t
o
di
vi
de
t
he
dat
a
i
nt
o
t
w o
and
send
t
hem
t
o
t
he
P C
separ
at
el
y.
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