Message 7, An example with frames is as follows – Vaisala FD12P User Manual
Page 68
User's Guide _______________________________________________________________________
68
______________________________________________________ M210296en-A
Message 7
Message 7 is meant mainly for aviation specific purposes. The
message contents are as follows:
00
6839
7505
L
52 61 61
0.33
12.16
0
23.4 12345
------background
luminance cd/m
2
------ surface temperature
----- cumulative snow sum
------- cumulative water sum
------- precipitation water intensity,mm/h
(1 minute average)
--- one hour present weather code, 0 ... 99
--- 15 minute present weather code, 0 ... 99
--- instant present weather code, 0 ... 99
---- instant present weather, NWS codes
------ visibility ten minute average, max 50000m
------ visibility one minute average, max 50000m
- 1=hardware error, 2= hardware warning
- 1= visibility alarm 1,
2= visibility alarm 2
-RA
, instant METAR weather codes
RERA , recent METAR weather (RE criteria used)
An example with frames is as follows:
FD
1 00
6839
7505
R
61 61 61
0.33
12.16
0
23.4 /////
-RA
RERA
!
FD
1
"
00
6839
7505
R
61 61 61
0.33
12.16
0
23.4 /////
-*
-RA
-*
RERA
-*
#-*
Message 7 consists of four lines. METAR present weather codes are
output on the second and third lines. These lines are not of fixed
length because METAR codes can be combined in many ways. The
METAR codes may also be left out but the lines of the message are
always terminated by a carriage return and line feed characters.
The background luminance value displays the measured luminance in
cd/m², if the Vaisala LM11 Background Luminance Meter is attached
to the FD12P (option FD12PLM11). If a day/night switch is
connected to the processor board, the background luminance value
displays the switch state (1 = day, 0 = night).