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WX Series WeatherStation Technical Manual revision 1.000

Proprietary and Confidential

PRELIMINARY - DRAFT

NMEA 0183 TRANSMITTED SENTENCE

$HC

HDT

$PAMTC,EN:

HDT

Default Interval (m:ss.00)

0:0.50

Enabled By Default:

Summary

NMEA 0183 standard Heading relative to True North

Syntax

$HCHDT,<1>,<2>*hh<CR><LF>

Fields

<1>

Heading relative to True North

<2>

T = True

Notes

The data in field <1> is only provided if both magnetic compass heading and

magnetic variation values are available.

Содержание 300WXR, 300WX, 150WX, 100WX w/CAN,100WX

Страница 1: ...100WX w CAN 100WX Revision 1 000 05 11 11 DRAFT This document is PRELIMINARY and Subject to Change AIRMAR Technology Corporation 35 Meadowbrook Drive Milford NH 03055 4613 603 673 9570 PROPRIETARY AND CONFIDENTIAL THIS DOCUMENT AND THE DATA DISCLOSED HEREIN OR HEREWITH IS NOT TO BE REPRODUCED USED OR DISCLOSED IN WHOLE OR IN PART TO ANYONE WITHOUT THE PERMISSION OF AIRMAR TECHNOLOGY CORPORATION ...

Страница 2: ...GLL 13 GPGSA 14 GPGSV 15 HCHDG 17 HCHDT 18 WIMDA 19 WIMWD 21 WIMWV 22 GPRMC 23 TIROT 24 HCTHS 25 GPVTG 26 WIVWR 27 WIVWT 28 XDR 29 YXXDR A 30 YXXDR B 32 YXXDR C 33 YXXDR D 34 YXXDR E 35 YXXDR H 36 WIXDR R 37 YXXDR T 38 WIXDR W 39 GPZDA 40 PAMTO 41 PAMTOC 42 PAMTRW 43 PAMTW 44 1 2 Received NMEA 0183 Sentences and Commands 45 VHW 47 PAMTC 48 PAMTC ALT 49 PAMTC ATTOFF 51 PAMTC BAUD 54 PAMTC COMP 55 P...

Страница 3: ...Confidential PRELIMINARY DRAFT iii PAMTC ERST 71 PAMTC HEATER 72 PAMTC LAMP 74 PAMTC OPTION 75 PAMTC POST 79 PAMTC QPS 81 PAMTC QV 82 PAMTC RESET 83 PAMTC RESET GPS 84 PAMTC RESET RAIN RAIN 85 PAMTC RESET RAIN RATE 85 PAMTC SIM 86 PAMTC WIND 87 PAMTX 89 2 Revision History 90 ...

Страница 4: ...iding pitch and roll angles MEMS rate gyro providing rate of turn pitch rate and roll rate of the vessel Global Positioning System GPS receiver with 10 Hz update rate providing position and speed and course over ground Polyvinylidene fluoride PVDF rain sensor providing rain rate and accumulated rain measurements Thermistor providing the operating temperature of the main processor board Voltage sen...

Страница 5: ...entences are described in section 1 1 Received NMEA 0183 sentences and proprietary commands are described in section 1 1 Transmitted NMEA 0183 Sentences By default only certain NMEA sentences are enabled for transmission Other sentences may be enabled individually for transmission via commands sent to the input channel 2 The standard transmission interval for most of the transmitted sentences is o...

Страница 6: ...ided by the WX Series WeatherStation Sensor are summarized in Table 1 Each of the transmitted sentences in Table 1 is described in detail on the subsequent pages The Maximum Length chars column in the table indicates an expected worst case scenario that can be used for bandwidth budgeting The total time in seconds required to transmit all enabled sentences in a single interval is rate baud charact...

Страница 7: ...rection and Speed with respect to north1 41 WIMWV relative Wind Speed and Angle in relation to the vessel s bow centerline relative 28 WIMWV theoretical Wind Speed and Angle in relation to the vessel s bow centerline theoretical 1 28 GPRMC Recommended Minimum Specific GNSS Data No 74 TIROT Rate of Turn 22 HCTHS True Heading and Status No 19 GPVTG Course Over Ground and Ground Speed 42 WIVWR Relati...

Страница 8: ...sel attitude pitch and roll No 43 YXXDR type C Transducer Measurements Accelerometers No YXXDR type D Transducer Measurements Rate gyros Pitch Roll Yaw No YXXDR type E Transducer Measurements Rate gyros Pitch Roll Yaw Raw No YXXDR type H Transducer Measurements Heater temperatures and voltages No WIXDR type R Transducer Measurements rain No YXXDR type T Transducer Measurements Internal temperature...

Страница 9: ...endices B and C 3 Latitude offset to the nearest 0001 minute 4 N if field 3 is North Latitude S if field 3 is South Latitude 5 Longitude offset to the nearest 0001 minute 6 E if field 5 is East Longitude W if field 5 is West Longitude 7 Signed altitude offset to the nearest meter 8 3 character reference datum code W84 WGS 84 Notes Latitude and longitude offsets are positive numbers the altitude of...

Страница 10: ...WX Series WeatherStation Technical Manual revision 1 000 Proprietary and Confidential PRELIMINARY DRAFT 10 See also the proprietary NMEA 0183 command PAMTC DATUM ...

Страница 11: ... 4 Longitude to the nearest 0001 minute 5 E if field 4 is East Longitude W if field 4 is West Longitude 6 GPS quality indicator 0 Fix not available or invalid 1 GPS SPS Mode fix valid 2 Differential GPS SPS Mode fix valid 3 GPS PPS Mode fix valid 4 Real Time Kinematic RTK 5 Float RTK 6 Estimated dead reckoning Mode 7 Manual Input Mode 8 Simulator Mode When providing data from the WX Series Weather...

Страница 12: ...t provided and appears as a null field 12 M In the WX Series WeatherStation Sensor this field contains M if separation data is available otherwise it is not provided and appears as a null field 13 Age of Differential GPS data seconds This field is not provided by the WX Series WeatherStation Sensor and appears as a null field 14 Differential reference station ID 0000 1023 This field is not provide...

Страница 13: ...titude to the nearest 0001 minute 2 N if field 1 is North Latitude S if field 1 is South Latitude 3 Longitude to the nearest 0001 minute 4 E if field 3 is East Longitude W if field 3 is West Longitude 5 UTC of position in the form hhmmss 6 Status A data valid V data invalid 7 Mode indicator A Autonomous mode D Differential mode E Estimated dead reckoning mode M Manual input mode S Simulator mode N...

Страница 14: ...o operate in 2D or 3D mode A Automatic allowed to automatically switch 2D 3D 2 1 Fix not available 2 2D fix 3 3D fix 3 14 ID numbers of satellites used in solution 15 Positional Dilution of Precision PDOP This field is null unless the GPS has a 3D fix 16 Horizontal Dilution of Precision HDOP This field is null unless the GPS has either a 2D fix or a 3D fix 17 Vertical Dilution of Precision VDOP Th...

Страница 15: ...earest degree 1st SV 6 Azimuth degrees True to the nearest degree 1st SV 7 SNR C No 00 99 dB Hz 1st SV null field if satellite not tracked 8 Satellite ID number 2nd SV 9 Elevation degrees 0 to 90 to the nearest degree 2nd SV 10 Azimuth degrees True to the nearest degree 2nd SV 11 SNR C No 00 99 dB Hz 2nd SV null field if satellite not tracked 12 Satellite ID number 3rd SV 13 Elevation degrees 0 to...

Страница 16: ...l PRELIMINARY DRAFT 16 Notes This sentence is transmitted in groups of up to three instances containing data for up to 4 satellites with each instance for a total of up to 12 satellites Field 3 only contain data in the first instance it is a null field in the second and third instances ...

Страница 17: ...mary NMEA 0183 standard Heading Deviation and Variation Syntax HCHDG 1 2 3 4 5 hh CR LF Fields 1 Magnetic sensor heading degrees to the nearest 0 1 degree 2 Magnetic deviation degrees east or west to the nearest 0 1 degree 3 E if field 2 is degrees East W if field 2 is degrees West 4 Magnetic variation degrees east or west to the nearest 0 1 degree 5 E if field 4 is degrees East W if field 4 is de...

Страница 18: ...NTENCE HCHDT PAMTC EN HDT Default Interval m ss 00 0 0 50 Enabled By Default No Summary NMEA 0183 standard Heading relative to True North Syntax HCHDT 1 2 hh CR LF Fields 1 Heading relative to True North 2 T True Notes The data in field 1 is only provided if both magnetic compass heading and magnetic variation values are available ...

Страница 19: ...degrees C this field left blank by the WX Series WeatherStation Sensor 8 C degrees C this field left blank by the WX Series WeatherStation Sensor 9 Relative humidity percent to the nearest 0 1 percent this field left blank if the relative humidity sensor is not available in the WX Series WeatherStation Sensor see Notes 10 Absolute humidity percent this field left blank by the WX Series WeatherStat...

Страница 20: ...e nearest 0 1 m s 20 M meters per second Notes This WX Series WeatherStation Sensor has a relative humidity sensor The barometric pressure provided in this sentence is the altimeter setting which is the barometric pressure corrected for altitude above sea level See the transmitted YXXDR A sentence and the received PAMTC ALT command for further information ...

Страница 21: ...egrees True to the nearest 0 1 degree 2 T True 3 Wind direction 0 0 to 359 9 degrees Magnetic to the nearest 0 1 degree 4 M Magnetic 5 Wind speed knots to the nearest 0 1 knot 6 N Knots 7 Wind speed meters second to the nearest 0 1 m s 8 M Meters second Notes The wind speed and direction data provided in this sentence are calculated using vector math based on the measured apparent wind speed and d...

Страница 22: ...2 Reference R Relative apparent wind as felt when standing on the moving ship T Theoretical calculated actual wind as though the vessel were stationary 3 Wind speed to the nearest tenth of a unit If the data for this field is not valid the field will be blank 4 Wind speed units K km hr M m s N knots S statute miles hr In the WX Series WeatherStation Sensor this field always contains N knots 5 Stat...

Страница 23: ...N if field 2 is North Latitude S if field 2 is South Latitude 5 Longitude to the nearest 0001 minute 6 E if field 4 is East Longitude W if field 4 is West Longitude 7 Speed Over Ground knots to the nearest 0 1 knot 8 Course Over Ground degrees True to the nearest 0 1 degree 9 Date ddmmyy 10 Magnetic Variation degrees E W to the nearest 0 1 degree 11 E if field 10 is degrees East W if field 10 is d...

Страница 24: ...MITTED SENTENCE TIROT PAMTC EN ROT Default Interval m ss 00 0 0 50 Enabled By Default Yes Summary NMEA 0183 standard Rate of Turn Syntax TIROT 1 2 hh CR LF Fields 1 Signed rate of turn degrees per minute to the nearest 0 1 degree Negative values indicate the bow is turning to port 2 Status A Data Valid V Data Invalid Notes ...

Страница 25: ...ue Heading and Status Syntax HCTHS 1 2 hh CR LF Fields 1 Heading relative to True North 2 Mode indicator A Autonomous E Estimated dead reckoning M Manual input S Simulator V Data not valid including standby This field shall not be null Notes The data in field 1 is only provided if both magnetic compass heading and magnetic variation values are available otherwise field 1 is null and field 2 is V W...

Страница 26: ...ds 1 Course Over Ground degrees True to the nearest 0 1 degree 2 T True 3 Course Over Ground degrees Magnetic to the nearest 0 1 degree 4 M Magnetic 5 Speed Over Ground knots to the nearest 0 1 knot 6 N Knots 7 Speed Over Ground km hr to the nearest 0 1 km hr 8 K km hr 9 Mode indicator A Autonomous mode D Differential mode E Estimated dead reckoning mode M Manual input mode S Simulator mode N Data...

Страница 27: ...e Wind angle in relation to the vessel s heading and wind speed measured relative to the moving vessel Syntax WIVWR 1 2 3 4 5 6 7 8 hh CR LF Fields 1 Measured wind angle relative to the vessel 0 to 180 left right of vessel heading to the nearest 0 1 degree 2 L left or R right 3 Measured wind speed knots to the nearest 0 1 knot 4 N knots 5 Wind speed meters per second to the nearest 0 1 m s 6 M met...

Страница 28: ...he heading line of the vessel It represents the wind at the vessel if it were stationary relative to the water and heading in the same direction Syntax WIVWT 1 2 3 4 5 6 7 8 hh CR LF Fields 1 Calculated wind angle relative to the vessel 0 to 180 left right of vessel heading to the nearest 0 1 degree 2 L left or R right 3 Calculated wind speed knots to the nearest 0 1 knot 4 N knots 5 Wind speed me...

Страница 29: ...such as YXXDR A Important Notes The fields in an XDR sentence are grouped in sets of four There may be up to four sets with four fields per set in a single transmitted XDR sentence Each set contains in order the four fields Type Data Units and ID If for some reason the contents of a given set are not available then the entire set including commas may be omitted Because there are multiple versions ...

Страница 30: ...llows 1 C temperature 2 Calculated relative wind chill temperature degrees Celsius to the nearest 0 1 degree 3 C degrees C 4 WCHR ID indicating relative wind chill 5 C temperature 6 Calculated theoretical wind chill temperature degrees Celsius to the nearest 0 1 degree 7 C degrees C 8 WCHT ID indicating theoretical wind chill 9 C temperature 10 Calculated heat index degrees Celsius to the nearest ...

Страница 31: ...the calculated true wind speed The wind chill temperature is only defined when the air temperature is below 50 F 10 C and the wind speed is above 3 mph The heat index is the apparent temperature felt by a person s skin when exposed to air with a high moisture content Dry air allows evaporative cooling of the skin s surface The higher the humidity the less the skin can cool itself with evaporative ...

Страница 32: ... fields in the B version of the XDR sentence are as follows 1 A angular displacement 2 Pitch oscillation of vessel about its latitudinal axis Bow moving up is positive Value reported to the nearest 0 1 degree 3 D degrees 4 PTCH ID indicating pitch of vessel 5 A angular displacement 6 Roll oscillation of vessel about its longitudinal axis Roll to the starboard is positive Value reported to the near...

Страница 33: ...leration of vessel along its latitudinal axis Moving to starboard is positive Value reported to the nearest 0 001g 3 G none defined gravitational force 4 XACC ID indicating acceleration in x direction 5 A angular displacement 6 Acceleration of vessel along its longitudinal axis Forward motion is positive Value reported to the nearest 0 001g 7 G none defined gravitational force 8 YACC ID indicating...

Страница 34: ... as follows 1 A angular displacement 2 Rate of turn about the vessel longitudinal axis Vessel rolling to starboard is positive Value reported to the nearest 0 001 degrees per second 3 D degrees degrees per second 4 RRAT ID indicating roll rate 5 A angular displacement 6 Rate of turn about the locally level latitudinal axis Bow moving up is positive Value reported to the nearest 0 001 degrees per s...

Страница 35: ...ar displacement 2 Rate of turn about the vessel longitudinal axis Vessel rolling to starboard is positive Value reported to the nearest 0 001 degrees per second 3 D degrees degrees per second 4 RRTR ID indicating roll rate 5 A angular displacement 6 Rate of turn about the vessel latitudinal axis Bow moving up is positive Value reported to the nearest 0 001 degrees per second 7 D degrees degrees pe...

Страница 36: ...2 13 14 15 16 hh CR LF Fields The fields in the H version of the XDR sentence are as follows 1 C temperature 2 Plate temperature lower heater degrees Celsius to the nearest 0 1 degree 3 C degrees C 4 PLAT ID indicating plate temperature 5 C temperature 6 Cap temperature upper heater degrees Celsius to the nearest 0 1 degree 7 C degrees C 8 CAPT ID indicating cap temperature 9 U voltage 10 Plate he...

Страница 37: ...in the E version of the XDR sentence are as follows 1 D linear displacement 2 Accumulation of rain since last reset 3 m undefined millimeters 4 RAIN ID indicating accumulated rain 5 t time 6 Duration of rain since last reset in seconds 7 s undefined seconds 8 DURA ID indicating rain duration 9 R Rate 10 Rate or intensity of rainfall measured in mm hour 11 h undefined millimeters per hour 12 RATE I...

Страница 38: ...the XDR sentence are as follows 1 C temperature 2 Air temperature reported by humidity sensor 3 C degrees C 4 HUMT ID indicating temperature from humidity sensor 5 C temperature 6 Main board temperature in WX Series WeatherStation Sensors this comes from the barometric pressure sensor degrees Celsius to the nearest 0 1 degree 7 C degrees C 8 BRDT ID indicating main board temperature 9 C temperatur...

Страница 39: ...sed in the WX Series WeatherStation Sensor to provide unfiltered wind measurements Syntax WIXDR 1 2 3 4 5 6 7 8 hh CR LF Fields The fields in the W version of the XDR sentence are as follows 1 A angular displacement 2 Unfiltered apparent wind angle relative to sensor 3 D Degrees 4 WNDA ID indicating unfiltered wind angle 5 w undefined Wind Speed 6 Unfiltered apparent wind speed relative to sensor ...

Страница 40: ...06 5 Local time zone hours 00 to 13 hrs 6 Local time zone minutes 00 to 59 Notes Local time zone is the magnitude of hours plus the magnitude of minutes added with the sign of local zone hours to local time to obtain UTC Local zone is generally negative for East longitudes with local exceptions near the International Date Line Examples At Chatham Is New Zealand at 1230 noon local time on June 10 1...

Страница 41: ...PAMTC EN PAMTO Default Interval m ss 00 0 1 00 Enabled By Default No Summary Airmar proprietary sentence Used in the WX Series WeatherStation Sensor to provide uncalibrated magnetometer data Syntax PAMTO R 1 2 3 hh CR LF Fields R Indicates raw uncalibrated magnetometer data 1 X magnetometer data 2 Y magnetometer data 3 Z magnetometer data Notes ...

Страница 42: ...TOC PAMTC EN PAMTOC Default Interval m ss 00 0 1 00 Enabled By Default No Summary Airmar proprietary sentence Used in the WX Series WeatherStation Sensor to provide calibrated magnetometer data Syntax PAMTO C 1 2 3 hh CR LF Fields C Indicates calibrated magnetometer data 1 X magnetometer data 2 Y magnetometer data 3 Z magnetometer data Notes ...

Страница 43: ...t Interval m ss 00 0 1 00 Enabled By Default No Summary Airmar proprietary sentence Used in the WX Series WeatherStation Sensor to provide raw wind phase data Syntax PAMTRW 1 2 3 4 5 hh CR LF Fields 1 Raw apparent wind phase data north 2 Raw apparent wind phase data south 3 Raw apparent wind phase data east 4 Raw apparent wind phase data west 5 Wind Valid Flags Notes ...

Страница 44: ...e Used in the WX Series WeatherStation Sensor to provide filtered wind phase data Syntax PAMTW 1 2 3 4 5 6 7 8 9 10 11 12 13 hh CR LF Fields 1 Filtered apparent wind phase data north 2 Filtered apparent wind phase data south 3 Filtered apparent wind phase data east 4 Filtered apparent wind phase data west 5 Wind Valid Flags 6 Toffset 7 Error_count 8 Sum_threshold 9 Settle_count 10 Period_north 11 ...

Страница 45: ... is a checksum match If the NMEA checksum is excluded it is required that the preceding asterisk also be excluded If no checksum is provided the WX Series WeatherStation Sensor will accept the sentence without error checking It is recommended that all sentences and commands provided to the WX Series WeatherStation Sensor include a checksum to help ensure integrity of the transmitted data The sente...

Страница 46: ...sition locations are referenced PAMTC EN Enable disable transmission of specific sentences and change their rate of transmission PAMTC ERST Reset the user portion of nonvolatile EEPROM to factory defaults PAMTC HEATER Control the WX Series WeatherStation Sensor internal heater PAMTC LAMP Control the WX Series WeatherStation Sensor windex lamp PAMTC OPTION Enable disable certain WX Series WeatherSt...

Страница 47: ...true 3 Compass Heading degrees Magnetic 4 M magnetic 5 Water speed knots 6 N knots 7 Water speed km h 8 K km h Notes This sentence is used to obtain water speed from an Airmar Smart speed sensor The water speed data is used to calculate true wind relative to the water The compass heading fields in this sentence are ignored by the WX Series WeatherStation Sensor See section Error Reference source n...

Страница 48: ...and mnemonic This may be any of the following ALT ATTOFF BAUD COMP DATUM EN ERST HEATER LAMP OPTION POST QPS QV RESET SIM WIND PAMTX The number and meaning of any subsequent fields is dependent on the command mnemonic Each of the command mnemonics defines a separate proprietary command or set of commands recognized by the WX Series WeatherStation Sensor These commands are each described in their o...

Страница 49: ... Do not use fixed altitude for GPS 2D mode 1 Use fixed altitude for GPS 2D mode Default value 0 4 0 Do not use altitude for barometric pressure altimeter setting WIMDA fields 1 and 3 1 Barometric pressure altimeter setting uses fixed altitude field 2 2 Barometric pressure altimeter setting uses GPS altitude when GPS has a 3D fix or fixed altitude field 2 when GPS does not have a 3D fix Default val...

Страница 50: ...olatile EEPROM memory within the WX Series WeatherStation Sensor and so remain programmed even after cycling power If any of the fields 2 3 or 4 are null fields the corresponding stored value will remain unchanged The PAMTC ALT Q command is used to query the values of the parameters currently programmed into the WX Series WeatherStation Sensor The unit will reply with PAMTR ALT a b c where a b and...

Страница 51: ...ard the bow negative values indicate the sensor is tilted aftward 5 Signed roll offset degrees to the nearest tenth of a degree The value must be between 45 0 and 45 0 degrees Positive values indicate the sensor is tilted toward the port side negative values toward the starboard side Notes Note that in the NMEA 0183 command the arguments are in degrees The values stored in the WX Series WeatherSta...

Страница 52: ...not be facing precisely toward the bow The recommended procedure to set these offsets is as follows 1 If the unit is mounted on a vessel this procedure should be performed with calm water and no wind and with the vessel at rest 2 First zero out all offsets by sending the command PAMTC ATTOFF SET 0 0 0 3 Determine the desired azimuth offset angle and program this into the sensor using the command P...

Страница 53: ...ical Manual revision 1 000 Proprietary and Confidential PRELIMINARY DRAFT 53 7 The programmed attitude offset values may be checked at any time by sending the command PAMTC ATTOFF Q to the unit it will reply with PAMTR ATTOFF a b c ...

Страница 54: ...ce communicating with the WX Series WeatherStation Sensor 1 Send the PAMTX command to the WX Series WeatherStation Sensor at 4800 baud to temporarily disable transmission of periodic sentences 2 Send the PAMTC BAUD 38400 command at 4800 baud to instruct the WX Series WeatherStation Sensor to change its baud rate to 38400 The unit will finish transmitting any periodic sentences in progress at 4800 ...

Страница 55: ..._ PAMTC COMP Summary User calibration commands for the internal compass sensor Syntax One of the following forms PAMTC COMP GO hh CR LF PAMTC COMP RESETALL hh CR LF PAMTC COMP RESETCAL hh CR LF PAMTC COMP RESETDAMP hh CR LF PAMTC COMP SET 1 2 3 4 5 6 7 8 9 hh CR LF PAMTC COMP Q hh CR LF PAMTC COMP X hh CR LF PAMTC COMP VERIFY hh CR LF ...

Страница 56: ...in 2 minutes of applying power to the weather station instrument being calibrated the vessel must start a slow circular turn If it completes a full circle within 2 3 minutes AutoCal will enter the user compass calibration procedure See steps 3 5 3 During the user calibration process the vessel is rotated slowly driven at 2 4 knots completing a circle within 2 3 minutes while the sensor collects da...

Страница 57: ...eply with PAMTR COMP FAILx 1 2 3 4 5 6 7 8 9 hh CR LF Where x indicates the type of failure 1 Timeout 2 Tilt Error or 3 Other Error Timeout errors 5 minute timeout occurred before successful completion or more than 30 seconds was taken to turn thru 45 degrees Other Errors reversing the direction of the turn for more than 45 degrees for example The user compass calibration procedure can be aborted ...

Страница 58: ... EEPROM as defined in the Q Query Command PAMTC COMP RESETCAL Summary Reset the user calibration coefficients to the default values Syntax PAMTC COMP RESETCAL hh CR LF Reply The weather station instrument will reset the user calibration coefficients fields 1 6 and reply with PAMTR COMP RESETCAL 1 2 3 4 5 6 7 8 9 hh CR LF where fields 1 through 9 contain the data from the weather station instrument...

Страница 59: ... integers 1 X axis Gain value hundredths used as multiplier 2 Y axis Gain value hundredths used as multiplier 3 Z axis Gain value hundredths used as multiplier 4 X axis linear offset hundredths of micro Teslas 5 Y axis linear offset hundredths of micro Teslas 6 Z axis linear offset hundredths of micro Teslas 7 X axis angular offset tenths of degrees 8 Pitch and Roll Damping twentieths of a second ...

Страница 60: ...X axis Gain value hundredths used as multiplier 2 Y axis Gain value hundredths used as multiplier 3 Z axis Gain value hundredths used as multiplier 4 X axis linear offset hundredths of micro Teslas 5 Y axis linear offset hundredths of micro Teslas 6 Z axis linear offset hundredths of micro Teslas 7 X axis angular offset tenths of degrees 8 Pitch and Roll Damping twentieths of a second 9 Compass Ra...

Страница 61: ...inate the user compass calibration mode Syntax PAMTC COMP X hh CR LF Reply PAMTR COMP X 1 2 3 4 5 6 7 8 9 hh CR LF Notes Upon receiving PAMTC COMP X user calibration mode will be terminated if it had been previously entered by a PAMTC COMP GO The reply will always be issued If not in user calibration mode the X will be replaced by Q ...

Страница 62: ...ibration process the vessel is rotated slowly driven in a circle and the sensor calculates the resulting score Once the weather station instrument has determined that enough data has been collected it transmits the following sentence PAMTR COMP SCORE XXX hh CR LF Reply The weather station instrument will reply immediately with PAMTR COMP INPROGRESS 1 2 3 4 5 6 7 8 9 hh CR LF Where fields 1 through...

Страница 63: ...lication S 60 Appendices B and C Notes The PAMTC DATUM SET 3 4 command is used to establish the local datum used by the GPS receiver for calculating position These values are stored in EEPROM memory within the unit The default value for field 3 is W84 WGS84 The default value for field 4 is a null field no subdivision datum code Unlike other NMEA 0183 proprietary commands if in the command PAMTC DA...

Страница 64: ...HI B OHI C OHI D OHI M SIR P90 and S85 are not currently supported by the GPS Engine used in the WX Series WeatherStation Sensor and therefore are not available for use as Local Datum Important Note Chart transformations based on IHO S60 parameters may result in significant positional errors when applied to chart data ...

Страница 65: ...VR MWVT RMC ROT VTG VWR VWT XDRA XDRB ZDA 3 If field 2 is the ALL identifier then 0 disable transmission of all sentences 1 enable transmission of all sentences Otherwise 0 disable transmission of the specified sentence 1 enable transmission of the specified sentence 4 The amount of time between successive transmissions of the specified sentence in tenths of a second For example if field 4 contain...

Страница 66: ...6 seconds and a multiple of tenths of seconds the last field of the query m ss hh is dropped For example if field 5 contains this value The interval is Output of Query tenths m ss hh 5 5 seconds 50 5 50 5 5 seconds 55 59 50 59 5 seconds 595 000 59 50 1 30 1 minute 30 seconds 900 001 30 00 6000 6000 seconds 60000 100 00 00 0 30 25 30 25 seconds 302 000 30 25 25 25 seconds 250 25 55 25 55 seconds 25...

Страница 67: ...ill remain unchanged from its previous value The selections as to which sentences are enabled for transmission and the rate at which each sentence is transmitted are stored in nonvolatile EEPROM memory within the WX Series WeatherStation Sensor On power up these settings are copied from EEPROM into a working copy in RAM memory It is the working copy in RAM that determines the behavior of the WX Se...

Страница 68: ... are summarized in the below figure Working Copy RAM Saved Copy EEPROM Factory Defaults ROM P A M T C E N L D PAMTC ERST PAMTC EN S PAMTC EN L The PAMTC EN Q command provides a query function to allow reading the current settings from the working copy in RAM The reply to the PAMTC EN Q command is a series of sentences with the following format PAMTR EN 1 2 3 4 5 6 hh CR LF where 1 Total number of ...

Страница 69: ...ters could exceed 800 It is possible to use the PAMTC EN command to over specify the amount of data transmitted beyond the bandwidth capacity of the NMEA output channel See section 1 1 for further information regarding bus bandwidth Examples Example 1 To disable all sentences for transmission except transmit compass heading 5 times per second and save the settings in EEPROM send the following sequ...

Страница 70: ...ow rate of once every 10 seconds for the current session only send the following command to the unit PAMTC EN XDRA 1 100 or PAMTC EN XDRA 10 Example 5 To disable transmission of the MWV T sentence permanently PAMTC EN MWVT 0 PAMTC EN S Example 6 To enable transmission of all of the GPS related sentences and disable all others for the current session only PAMTC EN ALL 0 PAMTC EN DTM 1 PAMTC EN GGA ...

Страница 71: ...imuth offset 0 0 PAMTC ATTOFF Pitch offset 0 0 PAMTC ATTOFF Roll offset 0 0 PAMTC ATTOFF List of sentences enabled for transmission See the description for the PAMTC EN command PAMTC EN Rates of transmission of sentences See the description for the PAMTC EN command PAMTC EN Allow COG to be used instead of internal compass heading in true wind calculations Disabled PAMTC OPTION GPS fix 2D 3D or Aut...

Страница 72: ... to A automatic control then the weather station instrument will automatically cycle the heater on and off over time to keep the plate temperature within appropriate limits based on the air temperature and dew point temperature if product has relative humidity sensor If a PAMTC HEATER Q Query command is received then every time the heater status changes the sensor will transmit the following messa...

Страница 73: ...WX Series WeatherStation Technical Manual revision 1 000 Proprietary and Confidential PRELIMINARY DRAFT 73 See also the proprietary NMEA 2000 PGN 130881 Heater Control ...

Страница 74: ...tting as the default to be stored in non volatile memory and used after a Reset or Power Cycle The lamp may be used to light the windex on weatherstation instruments so equipped If the lamp control is set to A automatic control then the weatherstation instrument will automatically turn the lamp on if it determines it is needed based on GPS Time Date and Location information If a PAMTC LAMP Q Query...

Страница 75: ...R LF PAMTC OPTION Q 3 hh CR LF Fields Option 1 3 1 Allow COG to be used instead of internal compass heading in true wind calculations 4 1 Feature enabled 0 Feature disabled default Option 2 3 2 Set GPS fix mode 4 1 2D fix only 2 3D fix only 3 Automatic selection of 2D or 3D mode default Option 3 3 3 Set WAAS mode 4 0 WAAS Disabled 1 WAAS Enabled but report fixes as GPS Autonomous 2 WAAS Enabled re...

Страница 76: ...er Ground SOG is greater than 3 knots If there is no GPS fix or if the SOG is 3 knots or less then the internal compass heading will be used Do be aware when using this feature that Heading and COG are not the same Heading refers to the direction the bow of the vessel is pointing COG refers to the direction the vessel is traveling While in an automobile these values are likely to be nearly identic...

Страница 77: ...he satellites in the sky must be satisfactory in order to achieve good geometry in the fix calculation as determined by the HDOP VDOP and PDOP values It is also possible to restrict the operation of the GPS to only allow 2D position fixes by sending the unit the command PAMTC OPTION SET 2 1 To re enable the automatic selection of 2D versus 3D fix calculations send the unit the command PAMTC OPTION...

Страница 78: ...ween WAAS Differential fixes and those fixes that do not use WAAS corrections The available WAAS modes are 0 Disable WAAS 1 Enable WAAS but report WAAS fixes as GPS Autonomous non differential This is provided for backward compatibility for systems that might not recognize WAAS Differential fixes 2 Enable WAAS and report WAAS fixes as Differential The default mode is 2 This setting is stored in EE...

Страница 79: ...o indicates the unit passed the respective test a nonzero value indicates a possible problem was discovered with the given submodule Therefore a properly operating unit with all connected options would reply with PAMTR POST 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 WX A standard WX Series WeatherStation Sensor would output PAMTR POST 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 WX where a Null field indicates sensor not p...

Страница 80: ...dware is minimally responding to software stimuli The POST function should not be regarded as a comprehensive indicator that a given unit is healthy In other words it is possible that a defective unit might still pass the POST operation However the POST can be useful to identify certain types of problems with the WX Series WeatherStation Sensor Certain models of the WX Series WeatherStation Sensor...

Страница 81: ...C QPS hh CR LF The WX Series WeatherStation Sensor will reply with a sentence in the following form PAMTR QPS 1 2 3 hh CR LF where 1 Part number string up to 32 ASCII characters 2 Serial number string up to 32 ASCII characters 3 Model number 0 255 Notes The part number and serial number strings may not contain the following characters dollar sign comma asterisk space Current definitions for Model ...

Страница 82: ...7 Bootloader 2 firmware version 8 Application 2 firmware version 9 GPS module version 10 Compass module version Notes In the earlier model WeatherStation sensor the PB100 fields 1 and 4 in the reply to this command contained the 12 character part number and serial number fields respectively In the model PB200 and the WX Series WeatherStation Sensor the part number and serial number fields have bee...

Страница 83: ... PRELIMINARY DRAFT 83 _NMEA 0183 RECEIVED SENTENCE_ PAMTC RESET Summary Reset the WX Series WeatherStation Sensor Syntax PAMTC RESET hh CR LF The WX Series WeatherStation Sensor will reset as though power had been removed and reapplied All settings will revert to their power on defaults ...

Страница 84: ... Proprietary and Confidential PRELIMINARY DRAFT 84 _NMEA 0183 RECEIVED SENTENCE_ PAMTC RESET GPS Summary Reset the GPS on a WX Series WeatherStation Sensor Syntax PAMTC RESET GPS hh CR LF Reset the GPS sensor on a GPS equipped WX Series WeatherStation Sensor ...

Страница 85: ...ntax PAMTC RESET RAIN RAIN hh CR LF Reset the Accumulated Rain and Rain Duration values of a rain sensor equipped WX Series WeatherStation Sensor _NMEA 0183 RECEIVED SENTENCE_ PAMTC RESET RAIN RATE Summary Reset the Rain Rate calculation and the Peak Rain Rate value of a rain sensor equipped WX Series WeatherStation Sensor Syntax PAMTC RESET RAIN RATE hh CR LF Reset the Rain Rate calculation and t...

Страница 86: ...te Mode Off default state PAMTC SIM 1 hh CR LF Turn Simulate Mode On PAMTC SIM Q hh CR LF Query Simulate state The PAMTC SIM Q command provides a query function to allow reading the current Simulate state The reply to the PAMTC SIM Q command is one of the following PAMTR SIM 0 hh CR LF Simulate Mode is Off PAMTR SIM 1 hh CR LF Simulate Mode is On Notes The Simulate Mode is not stored in EEPROM On ...

Страница 87: ... settings for wind filtering Syntax PAMTC WIND FILTER SET 1 2 hh CR LF Field one is an 8 bit unsigned fixed point decimal integer and field two is a 16 bit unsigned fixed point decimal integer 1 Filter Type where 0 None 1 IIR Filter 2 When Filter Type IIR Filter this is the Filter Time Constant in tenths of seconds to reach 95 of a steady state change in value Reply None PAMTC WIND FILTER Q Summar...

Страница 88: ...int decimal integer 1 Filter Type where 0 None 1 IIR Filter 2 When Filter Type IIR Filter this is the Filter Time Constant in tenths of seconds to reach 95 of a steady state change in value Notes PAMTC WIND GUST SET Summary Change user settings for gust parameters Syntax PAMTC WIND GUST SET 1 2 hh CR LF TBD Reply None PAMTC WIND GUST Q Summary Query the weather station instrument for the stored us...

Страница 89: ... sentence the WX Series WeatherStation Sensor will suspend transmission of all future NMEA sentences after the currently transmitting sentence has completed If the PAMTX command is received with no fields present i e PAMTX 50 CR LF or PAMTX CR LF the default case shall prevail i e transmission of sentences will be suspended Transmission of NMEA sentences will resume when one of the following has o...

Страница 90: ... Series WeatherStation Technical Manual revision 1 000 Proprietary and Confidential PRELIMINARY DRAFT 90 2 Revision History Revision 1 000 Date 05112011 Description Made into an 0183 User Technical Manual ...

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