Airmar NMEA 2000® Depth, Датчики - Manual (Page 22)

DST200 User Manual revision 1.000
Proprietary and Confidential
20
NMEA 2000® TRANSMITTED PARAMETER GROUP
PGN
126720-40
(0x1EF00)
Proprietary: Calibrate Depth
Single Frame: No Priority: 7/Y/N Update Rate: 0/N/N Destination: Address Query Support: Yes Access Level: 1
Field
#
Name
Request
Param. DD
DF Type Resolution Value Remark
1 Manufacturer Code Yes DD172 DF52 11 bits 1 135 (decimal) Manufacturer Code for Airmar
Technology.
2 Reserved bits No DD001 DF52 2 bits 1 0x3 All bits set to logic "1"
3 Industry Group Yes DD168 DF52 3 bits 1 4 (decimal) Industry Group for "Marine Industry".
4 Proprietary ID (PID) Yes DD005 DF53 uint8 1 bit 40 (decimal) 40 = Calibrate Depth
5 Speed of Sound No N/A N/A uint16 0.1 m/s 0 to 65532 = 0 to 6553.2 m/s.
The actual range of allowable
values is 1350.0 to 1650.0 m/s.
0xFFFE (65534) = restore default
0xFFFF (65535) = data not
available / do not change
This field establishes the Speed of
Sound used for the Water Depth
calculation.
This field is stored in EEPROM and
may be changed with the Command
Group Function PGN 126208. The
default value is 1500.0 m/s.
6 Reserved No DD001 DF52 8 bits 1 0xFF All bits set to logic “1”
Notes
DST200
DT200
DT200S
D200
D200ST
PGN 126720-40
supported in:
ST200 No
This PGN is transmitted in response to a PGN 126208 Request Group Function message. Fields 1, 3, and 4 must each be fully specified in the request in order for this PGN to be
transmitted.
This PGN does not respond to ISO Requests (PGN 59904).