Owners manual

USB100 User’s Manual
NMEA 2000 PGN
126992 – System Time
Field # Description
1 SID
2 Source
3 Reserved
4 Date
NMEA 0183 Sentence
ZDA – Time & Date
Field # Description
1 UTC
2 Day, 01 to 31
3 Month, 01 to 12
4
Yea
r
5 Null
6 Null
Time 5
PGN 127245 (Rudder)
The NMEA 2000® Rudder PGN is translated to the RSA NMEA 0183 sentence entitled Rudder Sensor
Angle as shown in the following table.
NMEA 2000 PGN
127245 – Rudder
Field # Description
1 Rudder Instance
2 Direction Order
3 Reserved
4 Angle Order
NMEA 0183 Sentence
RSA – Rudder Sense Angle
Field # Description
1 Starboard Rudder Sensor
2 Starboard Status
3 Null
Null4
5
Position
Reserved 6
PGN 127250 (Vessel Heading)
The NMEA 2000® Vessel Heading PGN is translated to either the HDG NMEA 0183 sentence entitled
Heading, Deviation & Variation or it is translated to the HDT NMEA 0183 sentence entitled Heading,
True depending on the state of field 5 of the PGN. If field 5 of the PGN indicates “Magnetic”, then the
HDG sentence is transmitted; conversely, if field 5 of the PGN indicates “True”, then the HDT sentence
is transmitted as shown in the following tables.
NMEA 2000 PGN
127250 – Vessel Heading
Field # Description
1 SID
2 Heading Sensor Reading
3 Deviation
4 Variation
NMEA 0183 Sentence
HDG – Heading, Deviation & Variation
Field # Description
1 Magnetic Sensor Heading
2 Magnetic Deviation
3 Deviation E/W
5 Heading Sensor Ref.
4 Magnetic Variation
Variation E/W 5
Reserved 6
NMEA 2000 PGN
127250 – Vessel Heading
Field # Description
1 SID
2 Heading Sensor Reading
3 Deviation
4 Variation
NMEA 0183 Sentence
HDT – Heading, True
Field # Description
1 Heading
5 Heading Sensor Ref.
Reserved 6
Always Transmitted as “T” 2
PGN 127251 (Rate of Turn)
The NMEA 2000® Rate of Turn PGN is translated to the ROT NMEA 0183 sentence entitled Rate of
Turn as shown in the following table.
Page A2 Appendix A – NMEA 2000
®
to 0183 Translations Revision 1.5