Memorex RX 1 Smart Manual de instalación descargar pdf (Pagina 108)

106 | Installation

NMEA Output Sentences

All sentences have the identifier “GP” for Global Positioning Systems. All position data

are in the user selected (displayed) datum except for GGA where the datum can be

manually set to WGS84, independent of the selected (displayed) datum.

RMB is transmitted only if an active route is present. Please refer to the Route section of

the Operator’s Manual for details on setting up an active route.

APA , APB , and XTE , are transmitted only if an active route is present and the

Autopilot Alarm in each of these NMEA sentence setup screens is Enabled and this

feature is not in an alarm condition.

ID DESCRIPTION ID DESCRIPTION

*APA Autopilot Sentence A RMB Recommended Minimum Navigation

Information

APB Autopilot Sentence B RMC

RecommendedMinimumSpecicGPS/

Transit Data

BOD Bearing Origin to Destination *Rnn Routes

BWC Bearing & Distance to Waypoint -

Greate Circle

RTE Routes

BWR Bearing & Distance to Waypoint -

Rhumb Line

*SNU Loran-C SNR Status

DTM Datum Reference VDR Set & Drift

GGA GPS Fix Data VHW Water Speed and Heading

GLL Geographic Position - Latitude/

Longitude

VPW Speed Measured Parallel to Wind

GRS GPS Range Residuals VTG Course and Speed Over Ground

GSA GPS DOP & Active Satellites WCV Waypoint Closure Velocity

GST GPS Pseudorange Noise Statistics WPL Waypoint Location

GSV GPS Satellites in View XTE Cross- Track Error, Measured

HSC Heading Steering Command ZDA Time & Date

MSK MSK Receiver Interface ZTG UTC & Time to Destination Waypoint

MSS MSK Receiver Signal Status

* APA, Rnn and SNU are older sentence formats (version 1.5) not recommended for new designs.

Table 5.1 NMEA 0183 Output Sentences

Input NMEA 0183 Sentences

The MX51x recognizes version 1.5, 2.0, 2.1, 2.3, and 3.0 NMEA input records. The MX51x

can utilize the following input sentence formats:

Depth: DBK, DBS, DBT, and/ or DPT

Gyro: HCC, HDM, HDT, RMA, RMC, VHW, and VTG

Position: GLL, RMA, RMC

Speed: RMA , RMC , VHW, VTG or pulses-per-second

Transducer: MMB, XDR

Waypoints: The received WPL data will overwrite the memory content of the waypoint

location which is contained in the received WPL sentence

The MX51x does not process the TALKER identifier (first two characters following the $ of

NMEA 0183 sentences) for any NMEA sentences received. Any pair of characters within

the NMEA specification are recognized.

The MX51x does process floating numerical formats in the received sentences.

Although the current version of the NMEA 0183 standard requires that a checksum be

present, the checksum is not required. However, if the checksum is included in the

NMEA sentence, the MX51x will reject any sentence where the checksum and data do not

correlate.

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