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DIGITAL INTERFACE (IEC 61162-1)
12
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I/O Sentences
D
Version number
IEC61162-1 Ed.4(2010-11)
D
GPS Input sentences (IEC 61162-1)
GGA, GLL, GNS, and RMC
D
GPS Input sentence description
• GGA—Global positioning system (GPS) fix data
$--GGA,hhmmss.ss,llll.ll,a,yyyyy.yy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11 12 13 14
1
UTC of position (000000.00 to 235959.99)
8
Horizontal dilution of precision (no use)
2 Latitude (0000.0000 to 9000.0000)
9 Antenna altitude above/below mean sealevel (no use)
3 N/S
10
Unit M
4 Longitude (00000.0000 to 18000.0000)
11
Geoidal separation (no use)
5 E/W
12 Unit M
6 GPS quality indicator (1 to 5)
13 Age of differential GPS data (no use)
7
Number of satellites in use (no use)
14 Differential reference station ID (no use)
•
RMC—Recommended minimum specific GNSS data
$--RMC,hhmmss.ss,A,llll.ll,a,yyyyy.yy,a,x.x,x.x,xxxxxx,x.x,a,a,a*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10
11
1213
1
UTC of position fix (000000.00 to 235959.99)
8
Course Over Ground, degrees True (0.0 to 360.0)
2 Status (A=data valid, V=navigation receiver warning)
9 Date (010100 to 311249)
3 Latitude (0000.0000 to 9000.0000)
10
Magnetic variation, degrees (no use)
4 N/S
11
E/W
5 Longitude (00000.0000 to 18000.0000)
12
Mode Indicator (A=Autonomous, D=Differential, F=Float RTK,
N=No fix, P=Precise, R=Real Time Kinematic,
S=Simulator mode)
6 E/W
13 Navigational status indicator (no use)
7
Speed over ground, knots (0.0 to 100.0)
• GLL—Geographic position—Latitude/longitude
$--GLL,llll.ll,a,yyyyy.yy,a,hhmmss.ss,A,a*hh<CR><LF>
1 2 3 4 5 6 7
1
Latitude (0000.0000 to 9000.0000)
5 UTC of position (000000.00 to 235959.99)
2 N/S
6 Status (A=data valid, V= data invalid)
3 Longitude (00000.0000 to 18000.0000)
7
Mode indicator (A=Autonomous, D=Differential, N=No fix,
S= Simulator mode)
4 E/W
• GNS—GNSS fix data
$--GNS,hhmmss.ss,llll.ll,a,yyyyy.yy,a,c--c,xx,x.x,x.x,x.x,x.x,x.x,a*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11 12 13
1
UTC of position (000000.00 to 235959.99)
8
HDOP (no use)
2 Latitude (0000.0000 to 9000.0000)
9 Antenna altitude, meters (no use)
3 N/S
10
Geoidal separation, meters (no use)
4 Longitude (00000.0000 to 18000.0000)
11
Age of differential data (no use)
5 E/W
12 Differential reference station ID (no use)
6
Mode indicator (N=No fix, A=Autonomous, D=Differential,
P=Precise, R=Real Time Kinematic, F=Float RTK,
S=Simulator mode)
13 Navigational status indicator (no use)
7
Total number of satellites in use (no use)