User's Guide ______________________________________________________________________
174 _________________________________________________________________ M210667EN-C
Message 2 - LT31 Message Including PW
Data (optional)
Message 2 is of fixed length where, in addition to Message 1, present
weather (PW) values are shown.
NOTE
Present weather values are available only when a valid PW-Option-
Keyword has been entered (refer to the
SET PW_OPTION
command
string shown in Table 11 on page 150). If no valid keyword has been
entered, the present weather values are replaced by a slash / (ASCII 47).
The message 2 format is as follows:
!
LT1
"
VIS 10000.0 AL 00000000000000000000 BL 01000 AL 0 WMO
61 WMO15M 61 WMO60M 61RN1M 0.33 RNSUM 12.16 SNSUM 999
TMP 23.4 AL 0
#
CSUM
$-*
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 (see Table 34 on page 173)
56 WMO
61
Instant WMO code
63
WMO15M 61
15-minute WMO code
73
WMO60M 61
60-minute WMO code
83
RN1M 0.33
Rain intensity 1-minute average, unit
mm h
-1
95
RNSUM 12.16
Rain sum, unit mm
108
SNSUM 999
Snow sum, unit mm
119 TMP
23.4
Temperature,
C
129
AL 0
Alarm/status for PWD (see Table 33 on
page 173)
133
#
End of the text (ASCII 3)
134 CSUM
Checksum
CRC16
138
$
End of the transmission (ASCII 4)
139
-*
CR + LF (ASCII 13 + ASCII 10)