Owners manual

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PGN 128259 (Speed)
The NMEA 2000® Speed PGN is translated to the VBW NMEA 0183 sentence entitled Dual Ground /
Water Speed and the VHW NMEA 0183 sentence entitled Water Speed and Heading as shown in the
following table.
NMEA 2000 PGN
128259 - Speed
Field # Description
1 SID
2 Speed Water Referenced
3 Speed Ground Ref.
4 Reserved
NMEA 0183 Sentence
VBW – Dual Ground/Water Speed
Field # Description
1 Longitudinal Water Speed
2 Null
3 Status Water Speed
4 Long. Ground Speed
5 Null
6 Status Ground Speed
7 Null
8 Always Transmitted as “V”
9 Null
10 Always Transmitted as “V”
NMEA 2000 PGN
128259 - Speed
Field # Description
1 SID
2 Speed Water Referenced
3 Speed Ground Ref.
4 Reserved
NMEA 0183 Sentence
VHW – Water Speed and Heading
Field # Description
1 Heading, Degrees True
2 Always Transmitted as “T”
3 Heading, Degrees Mag.
4 Always Transmitted as “M”
5 Water Speed, Knots
6 Always Transmitted as “N”
7 Water Speed, KPH
NMEA 2000 PGN
127250 – Vessel Heading
Field # Description
1 SID
2 Heading Sensor Reading
3 Deviation
4 Variation
5 Heading Sensor Ref.
6 Reserved
Always Transmitted as “K” 8
PGN 128267 (Water Depth)
The NMEA 2000® Water Depth PGN is translated to the DPT NMEA 0183 sentence entitled Depth as
shown in the following table.
NMEA 2000 PGN
128267 – Water Depth
Field # Description
1 SID
2 Water Depth Transducer
3 Offset
NMEA 0183 Sentence
DPT - Depth
Field # Description
1 Water Depth Transducer
2 Offset From Transducer
Null 3
Reserved 4
Revision 1.5 Appendix A – NMEA 2000
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to 0183 Translations Page A5