CS120A and CS125 Visibility and Present Weather Sensors
26
Full Format, Visibility Only (Default message for CS120A)
ST
X
M
es
sag
e
ID
Se
ns
or ID
Sy
ste
m
sta
tu
s
M
es
sag
e
in
te
rv
al
V
isib
ility
dis
ta
nc
e
V
isib
ility
un
its
A
ve
ra
gi
ng
dur
at
ion
U
se
r
al
ar
m
s
Sy
ste
m
al
ar
m
s
10
ch
ar
act
er
s
Che
cks
um
(C
CIT
T)
ET
X
Car
riag
e
re
tu
rn
Li
ne f
eed
0x02
2
M
o
r F
0 0
0 0 0
0 0…
XXXX
0x03
0x0D
0x0A
2 0 0 12 68218 F 1 0 0 0 0 0 0 0 0 0 0 0 0 D378 (Example with Visibility Units = Feet)
2 0 0 12 21793 M 1 0 0 0 0 0 0 0 0 0 0 0 0 CB0F (Example with Visibility Units = Metres)
11.2 Messages with SYNOP Present Weather Codes (CS125
only)
SYNOP Present Weather Basic Format
ST
X
M
es
sag
e I
D
Se
ns
or ID
Sy
ste
m
sta
tu
s
V
isib
ility
dis
ta
nc
e
V
isib
ility
un
its
SYNOP
C
od
e
Che
cks
um
(C
CIT
T)
ET
X
Car
riag
e
re
tu
rn
Li
ne f
eed
0x02
3
M
o
r F
0
-99
XXXX
0x03
0x0D
0x0A
3 0 0 20428 M 0 20B8 (Example message)
SYNOP Present Weather Partial Format
ST
X
M
es
sag
e I
D
Se
ns
or ID
Sy
ste
m
sta
tu
s
M
es
sag
e
in
te
rv
al
V
isib
ility
dis
ta
nc
e
V
isib
ility
un
its
U
ser
al
ar
m
s
Pa
rtic
le
c
ount
(m
in
ut
e)
In
te
ns
ity
(m
m
/h
)
SYNOP
C
od
e
Tem
per
at
ur
e (
deg
C
)
Re
la
tiv
e h
um
id
ity
*
Che
cks
um
(C
CIT
T)
ET
X
Car
riag
e
re
tu
rn
Li
ne f
eed
0x02
4
M
o
r F
0 0
0-
99
XXXX
0x03
0x0D
0x0A
4 0 0 12 21157 M 0 0 0 0.00 0 24.1 -99 5A55 (Example message)
