Calibration Message - ADVANSEA S400 User Manual

6.2- Calibration message

During the sensor calibration phase (Compass self-compensation), a
proprietary frame is sent to indicate the status of the autocompensation
procedure
$PADVH,138.2,0,13,*5F<CR><LF>
Magnetic cap / Autocompensation status (see table below) / Angular
sector / Checksum
At the end of the sensor calibration procedure, the owner frame
$PADVH is issued with the status at 1
$PADVH,,1,13,-3.25*4F<CR><LF>
Status of the self-compensation (see table below) / Angular sector /
Deflection measured on the angular sector / Checksum
Statut
0
1
2
3
4
5
The frame $PADVH ,, 1 is transmitted 36 times in order to broadcast
the 36 points of deviation measured during the self-compensation
procedure.
19
Definitions
Calibration in progress
Calibration successful
Calibration cancelled by the
user
Rotation direction error
Rotation too fast (or noisy
heading measurement)
Excessive deviation (>20°)
Comments
Respect a constant speed of
gyration
End of the procedure, you can
unconnected the wire
The initialization wire has been
disconnected before the end of
the rotation
Turn on starboard
(clockwise)
Reduce your speed (or wait for
calm sea)
Check the magnetic
environment around the
compass