Airmar NMEA 2000® Depth, Датчики - Manual (Page 32)

DST200 User Manual revision 1.000
Proprietary and Confidential
30
Speed Filter Type 0 (No Filter)
For Speed Filter Type 0, the fields in PGN 126720-43 starting with field 5 are described below.
Field
#
Name
Request
Param. DD
DF Type Resolution Value Remark
5 Filter type Yes N/A DF52 4 bits 1 0 = no filter See remark for field 5 on page 28.
6 Reserved No DD001 DF52 4 bits 1 0xF All bits set to logic “1”
7 Sample interval No N/A DF66 uint16 0.01 s 0 to 655.32 seconds
0 = reserved
0xFFFE = restore default
0xFFFF = data not available
/ do not change
Interval of time between successive samples
of the paddlewheel pulse accumulator.
This field is stored in EEPROM and may be
changed with the Command Group Function
PGN 126208. The default value for filter type
0 is 1.00 seconds.
Speed Filter Type 0 causes the Speed Water Referenced value in PGN 128259 to be calculated using only the number of paddlewheel pulses accumulated in the most recent
sample interval. No filtering of the data is performed.
To select speed filter type 0 and specify the sample interval, use the Command Group Function PGN 126208, specifying the individual fields in PGN 126720-43 as follows.
PGN 126720
Field Value
1 135 (decimal)
3 4 (decimal)
4 43 (decimal)
5 0 (filter type)
7 Desired sample interval