Vaisala LT31 - Page 163

Chapter 5 ________________________________________________________________ Operation
VAISALA ______________________________________________________________________ 163
Start
at Byte
No.
Content Description
1
!
Start of the heading (ASCII 1).
2 LT LT31 sensor identifier.
4 1 Unit identifier, if the ID is not defined it is
replaced by a space character.
5
"
Start of the text (ASCII 2).
6 VIS 10000.0 MOR value, unit m, 1-min-average.
18 AL 00000000000000000000 Alarm status of the LT31 system (see Table 13
on page 164).
42 BL 01000 Background luminance identifier and BL value,
unit, cd m
-2
.
51 AL 0 Alarm status of the background luminance
sensor LM21.
55
#
End of the text (ASCII 3).
56 CSUM Checksum CRC16.
60
$
End of the transmission (ASCII 4).
61
-*
CR + LF (ASCII 13 + ASCII 10).
The total amount of characters in the message is 62. The transmission
times are: 2.1 s at 300 bps (10-bit char), 0.26 s at 2400 bps, 0.07 s at
9600 bps.