Gill Instruments Ltd
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MaxiMet Page 91 Issue 3
Doc. No. 1957-PS-021 May 2018
3-5 Not supported
6 Dead Reckoning Mode, fix valid
Immediately followed by:
$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
Or -YY -Y Tilt indicates unit is tipping towards south "YY" degrees
D Units (Degrees)
+Z Z-Orientation "+1" shall be reported if the unit is installed upright, or "-1" if
facing downwards
TILT Name of the Sensor
*HH Checksum
<CR><LF> End of message termination
Example GMX200 NMEA Data String.
$WIMWV,230,R,000.01,N,A*0D
$WIMWV,048,T,000.79,N,A*09
$GPGGA,095011.000,5045.8066,N,00132.4000,W,1,06,1.5,-3.0,M,47.8,M,,0000*6D (GPS unit)
$PGILT,A,+00,D,+01,D,+1,TILT*35
Repeated every second (1Hz output).
6.6.4 GMX240 NMEA Output String
$WIMWV,049,R,000.03,N,A*03<CR><LF
Where: $WIMWV Wind Instrument Mean Wind Direction and Velocity
049 Wind Direction
R Relative Wind measurement, Wind Speed and/or Direction information,
reported with respect to the MaxiMet north marker
000.03 Wind Speed
N Knots (NMEA output fixed to Knots measurement only)
A Acceptable measurement (V is a void fail measurement)
O3 Hex Checksum
<CR> is a Carriage Return Character (ASCII hex value d)
<LF> is a Line Feed Character (ASCII hex value a)
Immediately followed by:
$WIMWV,049,T,,N,A*18<CR><LF>
Where: $WIMWV Wind Instrument Mean Wind Direction and Velocity
049 Wind Direction