Honeywell HMR3000 User Manual page 14

Digital compass solution
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HMR3000 User's Guide
In Mil Mode
$HCXDR,A,-3,D,PITCH,A,14,D,ROLL,G,1090,,MAGX,G,5823,,MAGY,G,-
20,,MAGZ,G,5924,,MAGT*2B
The following describes the proprietary sentences in detail:
HPR
Heading, Pitch, & Roll
$PTNTHPR,x.x,a,x.x,a,x.x,a*hh<cr><lf>
This sentence combines HMR3000's three significant measurements with useful status information. Data fields represent,
in order: heading, magnetic field status, pitch, pitch status, roll, and roll status. Heading, pitch, and roll measurements are
presented in degrees or mils depending on the setting in EEPROM. The heading measurement is corrected for deviation
and variation when these factors are programmed in the EEPROM.
Eg.
In Degree Mode
$PTNTHPR,85.9,N,-0.9,N,0.8,N*2C
$PTNTHPR,7.4,N,4.2,N,2.0,N*33
$PTNTHPR,354.9,N,5.2,N,0.2,N*3A
In Mil Mode
$PTNTHPR,90,N,29,N,15,N*1C
Status fields can contain one of six letter indicators:
L = low alarm,
M = low warning,
N = normal,
O = high warning, or
P = high alarm.
C = Tuning analog circuit
If any of the three status fields indicates alarm, then the heading field will be null as well as the corresponding
measurement field. Thresholds for alarm and warning levels can be changed in the EEPROM.
RCD
Raw Compass Data
$PTNTRCD,x.x,x.x,x.x,x.x,x.x,x.x,x.x,x.x,x.x,x.x*hh<cr><lf>
This sentence provides raw tilt and magnetic measurements for diagnostic use. Contents of each field represent
A/D readings for, in order: TiltAp, TiltAm, TiltBp, TiltBm, MagA, MagB, MagC, MagAsr, MagBsr, MagCsr. All values
represent the actual A/D readings from the most recent conversions, except that tilt readings are adjusted if low gain was
used for the conversion. Mag_sr values represent the sum of the most recent calibration Set and Reset pulse
measurements for each sensor. There are never any null fields in this sentence.
Eg.
In Degree Mode
$PTNTRCD,1509,1551,1548,1553,15199,16146,17772,17055,16176,17059*42
In Mil Mode
$PTNTRCD,1435,1512,1497,1453,16776,14066,9477,17403,16073,17225*7F
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