Appendix B: SeaTalk and NMEA Data |
Appendix B: SeaTalk and NMEA Data
The following table defines the data received on the NMEA/SeaTalk ports. Data sources are listed in order of priority unless otherwise indicated.
Data Received | Source |
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Vessel Position (LAT/LON) | SeaTalk, GGA, RMC, RMA, GLL |
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Speed and Course Over Ground | SeaTalk, RMC, RMA, VTG |
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Waypoint Identifier | SeaTalk, RMB, APB, BWC, BWR |
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Bearing to Waypoint | SeaTalk, RMB, BWC, BWR |
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Distance to Waypoint | SeaTalk, RMB, BWC, BWR |
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Cross Track Error (XTE) | SeaTalk, RMB, XTE, APB |
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Depth | SeaTalk, DPT, DBT |
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Apparent Wind Angle and Speed | SeaTalk, MWV (relative) |
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Boat Speed Through Water | SeaTalk, VHW |
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Total Log and Trip Log | SeaTalk*, VLW |
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Water Temperature | SeaTalk, MTW |
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Heading | SeaTalk, HDG, HDM, HDT, VHW |
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Locked Heading | SeaTalk only (Autopilot / Steering Compass) |
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Magnetic Variation | SeaTalk, RMC, RMA, HDG |
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Time (No priority) | SeaTalk, ZDA, GGA, RMC, GLL, BWC, BWR |
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Date | SeaTalk, ZDA, RMC |
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MOB data | SeaTalk only |
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Autopilot Status (Standby / Auto / Vane / Track) | SeaTalk only |
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Cursor Range and Bearing (from Radar) | SeaTalk, RSD |
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Global Alarms - Watch alarm, Wind alarm, Autopi- |
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lot alarms, Radar alarms, Depth alarms. | SeaTalk Only |
Waypoint arrival | SeaTalk, RMB, APB |
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Waypoint/Route Transfer | SeaTalk, WPL, RTE |
Other Data: Datum (SeaTalk, DTM); Satellite Data (SeaTalk, GGA); GPS Data (SeaTalk, GGA); DGPS Data (SeaTalk, MSS, GGA); WAAS Data (SeaTalk)
* Bridged to SeaTalk (not displayed)
Note:If Magnetic Heading is not available, the True Heading and Variation (if available) are used to gener- ate the magnetic heading.