Autonnic A5023 Kullanım ve Kurulum Kılavuzu - Sayfa 9

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Output formats available from compass

3.1

The serial output format is: 4800 Baud, 8 data bits, 1 stop bit, no parity.

The compass sends information using the standard NMEA-0183 sentence

'HDG': Magnetic Heading, Deviation, and Variation. But note that the

information of Deviation and Variation is not sent and so blank fields are

defined by consecutive commas. In the A5024/4 the sentence may have

one of several forms typically of the general form:

$HCHDG,hhh.h etc

Where hhh.h is the magnetic heading from 000.0 to 359.9 degrees

Also the Rate-of-turn data is sent either with or without the heading

sentence.

For a complete list of output formats available see Section 5.11

3.2

Furuno AD-10 - A5024 only

The compass has a separate, dedicated output in Furuno AD-10 format.

This is a proprietary 4 character serial format, which gives heading in

degrees and tens of minutes. The string 0872 represents the heading 87°

20' so that the precision is to 1/6 of a degree. At the same time the

A5024 would be also sending the NMEA data to a precision of 1/10 of a

degree.

Clock

Data

Duration of data is 16 clocks each

480µs

high=low=30µs. Total = 480µs.

100ms minimum

Fig 4

9 of 19

A5023/24

Frequency of data packets is set by

the interval command. Max = 10Hz