Gill Instruments Ltd
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MaxiMet
Page 102
Issue 3
Doc. No. 1957-PS-021
May 2018
0000
Solar Radiation reading in W/M
2
W
Solar Units of Measure (Total W/M
2
)
SOLAR
Name of Solar Sensor
01
Hex Checksum
<CR><LF>
End of message termination
Followed by GPS data if option available:
$GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M, , , ,0000*18<CR><LF>
Where: $GPGGA
NMEA GPS Protocol Header
161229.487
UTC Time, hhmmss.sss
3723.2475
Latitude ddmm.mmmm
N
North/South Indicator
12158.3416
Longitude ddmm.mmmm
W
East/West indicator
1
Position Fix Indicator (See below)
07
Satellites being used (Range 0-12)
1.0
Horizontal Dilution of Precision
9.0
Mean Sea Level (NSL) Altitude in metres
M
MSL Units, metres
, ,
Geoid Separation and Units in metres
0000
Differential GPS Reference Station ID
*18
Checksum
<CR><LF>
End of message termination
Position Fix Indicator:
Value
Description
0
Fix not available or invalid
1
GPS SPS Mode, fix valid
2
Differential GPS, SPS Mode, fix valid
3-5
Not supported
6
Dead Reckoning Mode, fix valid
Checksum, the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between
(and not including) the $ and * characters.
Followed by the Tilt Output:-
$PGILT,A,+XX,D,+YY,D,+Z,TILT*HH<CR><LF>
Where: $P
Start of sentence and proprietary sentence identifier
GIL
Gill Instruments recognised NMEA manufacturer mnemonic
T
Indicates TILT information
A
Type of Sensor (Angular Displacement)
+XX
X-Tilt indicates unit is tipping towards east "XX" degrees
Or
-XX
X Tilt indicates unit is tipping towards west "XX" degrees
D
Units (Degrees)
+YY
Y-Tilt indicates unit is tipping towards north "YY" degrees