Operation Manual

31
GPS input
gps1.d; gps2.d
The gpsX.d les dene the inputs of GPS units and the location of the antenna relative to the bow of the yacht.
An example of a GPS conguration le is shown below:
Channel 1
Device 1
Com 1 RS232 19200 N 8 1
Offset 0.0
Bow 55.0
COG 100 null.cal null.l null.alm
SOG 101 null.cal null.l null.alm
QHD 102 null.cal null.l null.alm
SVA 103 null.cal null.l null.alm
UTC 104 null.cal null.l null.alm
Line 1 denes the CAN Channel the module is connected to.
Line 2 denes the Device ID of the Module (NOTE: this is set via the DIP switch inside the module).
Line 3 denes the COM port settings:
COM Port COM port used [1 or 2]
Hardware Type Hardware settings for the type of data [RS232, RS485, RS422, NMEA0183]
Baud Rate Baud Rate setting to suit the input [4800, 9600, 19200, 28800, 38400, 57600, 115200]
Parity Parity setting to suit the input[N = no parity]
Data Bits To suit the input [7 or 8]
Stop Bits To suit the input [1 or 2]
Compass Type Identies special compass types (see compatible compass types)
Line 4 denes the GPS antenna position:
Oset GPS Antenna oset from centreline ( - Port, + Starboard) in feet
Bow to GPS GPS Antenna distance from Bow in feet
The additional lines dene the variables. Normally this should not be changed though, for example, you may
wish to add a link to a lter le for SOG:
Variable Name Name of the variable, for user information only]
COM Port Same port as line 3 (above)
Variable Number Variable number where data is stored (from bg_vars.d)
Calibration File Filename of the calibration le to use
Filter File Filename of the lter/damping le to use
Alarm File Filename of the alarm le to use [optional]
Note: For NMEA0183 GPS inputs the preferred inputs are as follows:
Position: GGA, GLL (If GGA or GLL is not available then RMC can be used for Position, in this case VTG must be disabled.)
Velocity: VTG