Marport Scala2, User Manual

Page: 161 / 177

Scala2 | Version 5 | Appendix
NMEA Sentence Format
First compliant
version
of Scala
MWD - Wind
Direction
& Speed
$--MWD, a.a,T,b.b,M,c.c,N,d.d,M*hh<CR><LF>
1. $--: Talker identifier*
2. MWD: Sentence formatter*
3. a.a,T: Wind direction, 0° to 359° true*
4. b.b,M: Wind direction, 0° to 359° magnetic*
5. c.c,N: Wind speed, knots*
6. d.d,M: Wind speed, meters/second*
7. *hh: Checksum*
1.6.0.0
MWV - Wind
Speed & Angle
$--MWV,a.a,b,c.c,d,E *hh<CR><LF>
1. $--: Talker identifier*
2. MWV: Sentence formatter*
3. a.a: Wind angle, 0 to 359 degrees*
4. b: Reference, R = relative, T = true*
5. c.c: Wind speed*
6. d: Wind speed units, K = km/h, M = m/s, N = knots*
7. E: Status, A = data valid V= data invalid*
8. *hh: Checksum*
1.0.0.0
RMC -
Recommended
Minimum
Navigation
Information
$--RMC,aaaaaa,A,bbbb.bbb,B,ccccc.ccc,C,ddd.d,eee.e,
ffffff,ggg.g,G,H*hh<CR><LF>
1. $--: Talker identifier*
2. RMC: sentence formatter*
3. aaaaaa: Time (UTC)*
4. A: Status, A = data valid, V = navigation receiver warning*
5. bbbb.bbb, B: Latitude, N/S*
6. ccccc.ccc, C: Longitude, E/W*
7. ddd.d: Speed over ground (knots)*
8. eee.e: Course Over Ground (degrees True)*
9. ffffff: Date: ddmmyy*
10. ggg.g, G: Magnetic variation (degrees E/W)*
11. H: mode indicator: A=Autonomous, D=Differential,
E=Estimated, M=Manual input, S=Simulator, N=data not
valid (sentence is not accepted if mode indicator = N)*
12. *hh: Checksum*
2.2.2.0
| 160