Simrad SL 30, Руководство пользователя

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SL 30/35 Hull Sonar Operators Manual 974-25007001/2.0
Menu and Software Description Page 4.79
Kongsberg Simrad Mesotech Ltd.
Port Coquitlam, BC - Canada
NMEA defined VLW sentence:
$--VLW,x.x,N,x.x,N*hh<CR><LF>
where:
$--VLW identifies the start and type of sentence,
x.x is a variable length data field showing the cumulative distance traveled through the
water.
N specifies the distance units to be in nautical miles,
x.x is a variable length data field showing the distance since reset,
N specifies the distance units to be in nautical miles,
*hh is a checksum,
<CR><LF> is a terminating carriage return and line feed pair.
This sentence always starts with the $ character, so we would set the Start Character for this
data to $ (Hex 24 or Binary 00100100).
The data is separated into fields using commas, so we would set the Field Delimiter for this
data to , (Hex 2C or Binary 00101100).
Suppose we wanted to display only the cumulative distance and the distance since reset from
this data string. We could set the Display Format string to FNFSSN. The first F would ignore
everything up to and including the first comma, the first N would display the cumulative
distance field, the next F would skip the next field, the SS would print two spaces to separate
the data, and the final N would display the 'distance since reset' field.
4.59.22.4 Sensors Data Display Box
The Sensors Data display box shows the data being collected through the serial ports. The
number of entries displayed, is updated as the user modifies the type of sensors to input from
the serial port through the Sensor Selection dialog box accessed through the
Configuration |
NMEA Setup .... menu
4.59.23 System Configuration Dialog Box