Simrad HS 75 - NMEA 2000 Transmitted Messages

15
NMEA 2000
®
transmitted messages
PGN Description Default
update rate
(msec)
Freq (Hz)
126992 System Time
The purpose of this PGN is twofold: To provide a
regular transmission of UTC time and date, and to
provide synchronism for measurement data.
1000 1
126993 Heartbeat
Conrms a device is still present on the network.
60000 1/60
127250 Vessel Heading
Heading sensor value with a ag for True or Magnetic.
If the sensor value is Magnetic, the deviation eld
can be used to produce a Magnetic heading, and the
variation eld can be used to correct the Magnetic
heading to produce a True heading.
100 10
127251 Rate of Turn
Rate of change of heading.
100 10
127257 Altitude
Provides a single transmission that describes the
position of a vessel relative to both horizontal and
vertical planes.
Altitude can be used for vessel stabilization, vessel
control and onboard platform stabilization.
1000 1
127258 Magnetic Variation
Message for transmitting variation.
The message contains a sequence number to
synchronize other messages such as Heading or
Course over Ground.
The quality of service and age of service are provided
to determine appropriate level of service if multiple
transmissions exist.
1000 1
129025 Position, Rapid Update
Provides latitude and longitude referenced to WGS84.
A single frame message (opposed to other PGNs
that include latitude and longitude and are dened
as fast or multi- packet), this PGN lends itself to
more frequent transmission without using excessive
bandwidth.
100 10
129026 COG & SOG, Rapid Update
Single frame PGN that provides Course Over Ground
(COG) and Speed Over Ground (SOG).
250 4