NMEA 2000

The GNSS Compass serial variant (GC2-SER) permanently outputs the NMEA 2000 messages. These are available on the CAN port using an NMEA 2000 Drop Cable. It is not possible to modify this configuration:

PGN

Description

Output Period (milliseconds)

Rate (Hz)

126992

System Time

UTC time and date

1000

1

126993

Heartbeat

Transmitted by all NMEA devices to indicate the device is still present on the network. Reception of this PGN may also be used to maintain an address to NAME association table within the receiving device.

60000

 

127250

Vessel Heading

True and magnetic heading

100

10

127251

Rate of Turn

Rate of change of the heading

100

10

127252

Heave

Vertical distance relative to the average sea level

100

10

127257

Attitude

Orientation of the vessel

1000

1

129025

Position, Rapid Update

Rapid update of latitude and longitude

100

10

129026

COG & SOG, Rapid Update

Rapid update of Course Over Ground (COG) and Speed Over Ground (SOG)

250

4

129029

GNSS Position Data

Position and GNSS fix status

1000

1

129540

GNSS Satellites in View

1000

1

130578

Vessel Speed Components

Longitudinal and transverse speed

250

4

NMEA 2000 transmitted messages