System Parameter Reference
Document name:
Document version:
Release date:
VEGA-SysPar-EN
1.1
25/08/2008
triadis engineering GmbH – Eichholzstrasse 7 – Postfach – CH-3254 Messen
Phone: +41 (0)31 768 15 15 – Fax: +41 (0)31 768 15 16 – Internet: www.triadis.ch – E-Mail: [email protected]
Notes
i
Vega System Parameter Reference • VEGA-SysPar-EN
Notes
Vega System Parameter Reference • VEGA-SysPar-EN
ii
Preface
Safety notice
Refer to the safety notices and legal notices in the Vega Pilots Manual prior to reconfigure the Vega
instrument.
After reconfiguring Vega, it is recommended where possible to check the correct operation of the
device prior to flight.
Revision history
Revision
1.0
iii
Date
25/08/2008
Status
released
Author
D.Wettstein
Changes, comments
System Parameters
Vega System Parameter Reference • VEGA-SysPar-EN
CONTENTS
Contents
1
Parameters
2
Data protocol
2.1
Summary . . . . . . . .
2.2
Air data outputs . . . .
2.3
In-flight inputs . . . . .
2.4
Configuration inputs . .
2.5
Diagnostics . . . . . . .
2.6
Additional specifications
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12
12
12
14
15
16
17
Value tables
A.1
FLARM Aircraft Types
A.2
Beep Types . . . . . .
A.3
Pitch Schemes . . . .
A.4
Pitch Scale . . . . . .
A.5
Beep Duration . . . .
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19
19
19
19
19
20
Schemes
B.1
Dead band types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
22
A
B
1
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Vega System Parameter Reference • VEGA-SysPar-EN
iv
1
1
PARAMETERS
Parameters
The following Parameters are all used by Vega. Although all of these parameters can be modified
manually, it is not recommended to do so for most of them. The default values are sufficient for
most users.
In any case, do never change any parameter if you are not entirely aware of the consequences.
[Label]
[Min]
[Max]
[Default] [Description...]
Audio Mixer
MuteComSpkThreshold
0
100
20
MuteComPhnThreshold
0
100
20
Threshold signal level of radio speaker output which triggers
muting. Do not adjust this unless your radio produces a lot of
static and results in spurious muting.
Threshold signal level of radio headset output which triggers
muting. Do not adjust this unless your radio produces a lot of
static and results in spurious muting.
MinUrgentVolume
0
127
64
Minimum volume at which warning class messages are sent.
ComMessageAlarmLevelPriority
0
3
2
If an external audio trigger activates voice muting, the following procedure takes place: when a message of the here
specified priority (warning level) or higher is to be issued,
then the message is issued instantly but at a lower volume
(with the specified voice muting ratio). If the priority of the
message is lower than the specified value, the issue is delayed of maximum the value specified in ‘PlyMaxComDelay’.
If the muting is still active after this delay period, the message
is issued at a lower volume.
0:
no warning level priority
1:
level reference
2:
level caution
3:
level warning
PlyMaxComDelay
1
255
5
See ‘ComMessageAlarmLevelPriority’.
TrafficMode5ResetTime
0
127
5
Time lapse after which traffic mode 5 is automatically set
back to the last traffic mode (minutes).
DontReportTrafficModeChanges
boolean
0
Disable announcement of automatic FLARM alert mode. If
false, Vega announces changes to the flight mode between
circling and cruise. This property has no influence when
‘KeepOnStraightFlightMode’ was set to 1.
1
Vega System Parameter Reference • VEGA-SysPar-EN
1
[Label]
[Min]
[Max]
[Default]
InputGainChannelA
1
255
191
InputGainChannelB
1
255
191
InputGainChannelC
1
255
191
Audio Mute
MuteVarioOnCom
boolean
1
MuteSpeakerOnVoice
boolean
0
MuteVarioOnVoice
boolean
1
VoiceRelativeMuteVol
1
255
64
VarioRelativeMuteVol
0
254
64
MuteRatioChannelA
1
255
64
MuteRatioChannelB
1
255
64
MuteRatioChannelC
1
255
64
PARAMETERS
[Description...]
Input gain audio channel A. 0-254 corresponds to 0-1.3.
Input gain audio channel B. 0-254 corresponds to 0-1.3.
Input gain audio channel C. 0-254 corresponds to 0-1.3.
Enable vario volume muting when receiving a radio transmission.
Enable external audio signal muting when messages are
spoken.
Enable vario volume muting when messages are spoken.
Voice muting level when muting is enabled and radio transmission is received. 0 represents silence, 254 represents no
muting.
Vario muting level when muting is enabled and radio transmission is received. 0 represents silence, 254 represents no
muting.
Audio channel A muting level when muting is enabled and radio transmission is received. 0 represents silence, 254 represents no muting.
Audio channel B muting level when muting is enabled and radio transmission is received. 0 represents silence, 254 represents no muting.
Audio channel C muting level when muting is enabled and radio transmission is received. 0 represents silence, 254 represents no muting.
FLARM
FlarmDeviceID
Identifier sent by FLARM. The object ID identifies one’s own
FLARM (aircraft). Set this value to the ICAO identification of
the aircraft (see Airworthiness Certification e.g. 4B103E).
Vega System Parameter Reference • VEGA-SysPar-EN
2
1
PARAMETERS
[Label]
[Min]
[Max]
[Default] [Description...]
FlarmAircraftType
0
15
1
The aircraft type reported by FLARM. See A.1 for the different
aircraft types.
FlarmPrivacyFlag
boolean
0
FLARM privacy flag. If true, FLARM does not send extended
data about the flight trajectory or FLARM device ID.
IGCLogging
boolean
1
Enable IGC logging.
IGCLoggerInterval
1
60
4
IGC logging interval (sec.).
IGCLoggingReadOnAckRep
boolean
0
If set to 1, simultaneous pressing of the ACK and REP button copies the FLARM Flight Recorder store on the SD card.
(Works only if IGCLogging is set to 1.)
IGCCompClass
Defines header information ‘Competition Class’ for the flight
recording.
IGCCompID
Defines header information ‘Competition ID’ for the flight
recording.
IGCGliderID
Defines header information ‘Glider ID’ (aircraft registration)
for the flight recording.
IGCGliderType
Defines header information ‘Glider Type’ (aircraft type) for the
flight recording.
IGCPilotName
Defines header information ‘Pilot Name’ for the flight recording.
UpdateLogBook
boolean
1
If set to 1, IGC log informations are written in the file logbook.txt.
FlarmUserInterface
0
3
0
Controls which parts of the user interface on the FLARM device are enabled.
0:
LED and buzzer
1:
No LEDs, no buzzer
2:
No LEDs, with buzzer
3:
LEDs, no buzzer
FLARM Messages
FlarmInfoRepeatTime
1
255
10
3
Time lapse after which not acknowledged info messages are
repeated.
Vega System Parameter Reference • VEGA-SysPar-EN
1
PARAMETERS
[Label]
[Min]
[Max]
[Default] [Description...]
FlarmCautionRepeatTime
1
255
5
Time lapse after which not acknowledged caution messages
are repeated.
FlarmWarningRepeatTime
1
255
2
Time lapse after which not acknowledged warning messages
are repeated.
FlarmMaxObjectsReported
1
6
4
Maximum number of aircrafts (FLARM objects) that can be
announced in cruise.
FlarmMaxObjectsReportedOnCircling
1
6
1
Maximum number of aircrafts (FLARM objects) that can be
announced in circling.
KeepOnStraightFlightMode
boolean
0
Defines whether two different message modes (circling/cruise) are used. If set to 1, only one mode is used
(standard for powered aircrafts/helicopters).
DontReportGliderType
boolean
0
Whether the type of the FLARM traffic is announced. If false,
messages are of the form ‘Eleven oclock high glider three’. If
true, messages are of the form ‘Eleven oclock high three’.
Messages
GearRepeatTime
1
255
8
GearExtendedOnTowing
boolean
1
BatLowThresold
1
255
20
BatEmptyThresold
1
255
20
BatRepeatTime
1
255
30
Misc
BaudrateA
0
5
1
0:
1:
2:
3:
4:
Time in seconds between repeating landing gear warnings.
Whether landing gear is extended on towing.
Battery voltage at which ‘battery weak’ is announced.
Battery voltage at which ‘battery weak’ is announced.
Interval between repeating battery warnings.
Baud rate of serial device connected to X1. Use this as necessary when using a third party GPS or data-logger instead
of FLARM. If FLARM is connected the baud rate will be fixed
at 38400.
Automatic
4800
9600
19200
38400
Vega System Parameter Reference • VEGA-SysPar-EN
4
1
PARAMETERS
[Label]
[Min]
[Max]
BaudrateB
0
5
[Default] [Description...]
5:
57600
6:
115200
1
0:
1:
2:
3:
4:
5:
FlarmConnected
boolean
1
EnableDrinkReminder
boolean
0
EnableOxygenReminder
boolean
0
LedBrightness
1
15
3
EnablePDASupply
boolean
1
GlidePolarA
-32000
32000
-123
5
Baud rate of serial device connected to X2. Use this as necessary when using a third party GPS or data-logger instead
of FLARM. If FLARM is connected the baud rate will be fixed
at 38400.
Automatic
4800
9600
19200
38400
57600
Enable detection of FLARM. Disable only if FLARM is not
used or disconnected or if FLARM configuration is not allowed (LX7007).
Activation of the drink reminder.
Activation of the oxygen reminder.
LED brightness.
Enable output of +5V power supply at connector X2.
This value is used for backup purposes and is not expected
to be modified or entered manually. Where Vega is used in
conjunction with Altair or a PDA running XCSoar, the XCSoar
program sends this value to the device during flight.
GlidePolarB
-32000
32000
777
This value is used for backup purposes and is not expected
to be modified or entered manually. Where Vega is used in
conjunction with Altair or a PDA running XCSoar, the XCSoar
program sends this value to the device during flight.
GlidePolarBestLD
0
5000
400
This value is used for backup purposes and is not expected
to be modified or entered manually. Where Vega is used in
conjunction with Altair or a PDA running XCSoar, the XCSoar
program sends this value to the device during flight.
Vega System Parameter Reference • VEGA-SysPar-EN
1
[Label]
[Min]
[Max]
GlidePolarC
-32000
32000
GlidePolarMinSink
-1000
0
[Default] [Description...]
-1543
This value is used for backup purposes and is not expected
to be modified or entered manually. Where Vega is used in
conjunction with Altair or a PDA running XCSoar, the XCSoar
program sends this value to the device during flight.
-9
This value is used for backup purposes and is not expected
to be modified or entered manually. Where Vega is used in
conjunction with Altair or a PDA running XCSoar, the XCSoar
program sends this value to the device during flight.
GlidePolarVBestLD
0
5000
250
CriticalStallRatio
0
254
PARAMETERS
This value is used for backup purposes and is not expected
to be modified or entered manually. Where Vega is used in
conjunction with Altair or a PDA running XCSoar, the XCSoar
program sends this value to the device during flight.
0
Vario Audio Basic
VarioTimeConstantCircling
0
3
2
Variometer low pass filter time constant in circling.
0:
1.0s
1:
1.3s
2:
1.8s
3:
2.7s
VarioTimeConstantCruise
0
3
2
Variometer low pass filter time constant in cruise.
0:
1.0s
1:
1.3s
2:
1.8s
3:
2.7s
ToneAveragerVarioTimeScale
0
7
5
Time scale used for vario averager.
0:
0.0s
1:
0.8s
2:
1.7s
3:
3.5s
4:
7.5s
5:
15s
6:
30s
7:
60s
ToneAveragerCruiseTimeScale
0
7
2
Time scale used for cruise speed command averager.
0:
0.0s
Vega System Parameter Reference • VEGA-SysPar-EN
6
1
PARAMETERS
[Label]
[Min]
[Max]
[Default]
1:
2:
3:
4:
5:
6:
7:
ToneDeadbandCirclingHigh
-100
100
3
ToneDeadbandCirclingLow
-100
100
-10
ToneDeadbandCruiseHigh
-100
100
15
ToneDeadbandCruiseLow
-100
100
-15
Vario Audio Advanced
ToneBaseFrequencyOffset
-30
30
0
ToneMeanVolumeCircling
1
8
6
ToneMeanVolumeCruise
0
8
6
[Description...]
0.8s
1.7s
3.5s
7.5s
15s
30s
60s
High limit of circling dead band
Low limit of circling dead band
High limit of cruise dead band
Low limit of cruise dead band
Frequency base for vario tone.
Fine volume tuning in circling.
Fine volume tuning in cruise. If set to zero, scales with airspeed.
ToneDeadbandCirclingType
boolean
0
Type of dead band used in circling mode. See B.1 for more
details about the dead band type.
0:
STEP
1:
RAMP
ToneDeadbandCruiseType
0
1
0
Type of dead band used in cruise mode. See B.1 for more
details about the dead band type.
0:
STEP
1:
RAMP
Sensors
HasPressureTE
boolean
HasPressurePitot
boolean
HasPressureStatic
boolean
HasPressureStall
boolean
7
0
Whether the Total Energy port is connected.
0
Whether the Pitot port is connected.
0
Whether the Static port is connected.
0
Whether the Stall pressure port is connected.
Vega System Parameter Reference • VEGA-SysPar-EN
1
PARAMETERS
[Label]
[Min]
[Max]
[Default] [Description...]
HasAccelerometer
boolean
0
Whether the internal accelerometer is used. Only change
this if the accelerometer has malfunctioned or the instrument
cannot be installed with correct alignment.
HasTemperature
boolean
0
Whether a temperature and humidity sensor is installed. Set
to 0 to disable, 255 to enable auto-detect.
TotalEnergyMixingRatio
0
8
8
Proportion of TE probe value used in total energy mixing with
pitot/static total energy.
CalibrationAirSpeed
0
200
100
Calibration factor applied to measured airspeed to obtain indicated airspeed (%).
CalibrationTEStatic
0
200
100
Calibration factor applied to static pressure used in total energy calculation (%).
CalibrationTEDynamic
0
200
100
Calibration factor applied to dynamic pressure used in total
energy calculation (%).
CalibrationTEProbe
0
200
100
Calibration factor applied to pressure used in total energy calculation (%).
FlapSwitchCount
0
3
0
Number of installed flap switches.
0:
none
1:
Flap A
2:
Flap A and B
3:
Flap A, B and C
Airframe Limits
VelocityNeverExceed
0
833
750
VelocitySafeTerrain
0
833
264
TerrainSafetyHeight
0
999
150
VelocityManoeuvering
0
833
750
VelocityAirBrake
0
833
750
VelocityFlap
0
833
750
The VNE as true airspeed (0.1 m/s).
Safe airspeed near terrain (indicated airspeed) (0.1 m/s).
Terrain safety height for safe speed alert (velocity safe terrain)
(m).
Manoeuvring airspeed (0.1 m/s).
Max speed for airbrake deployment (0.1 m/s).
Max speed for positive flap deployment (0.1 m/s).
Vega System Parameter Reference • VEGA-SysPar-EN
8
1
PARAMETERS
[Label]
[Min]
[Max]
[Default] [Description...]
Comparison Type
ToneCruiseLiftDetectionType
0
6
2
Comparison method used to detect cruise states
0:
(NONE) LIFT mode is disabled. In all modes, speed commands will still instruct the pilot to fly the glider slower in areas of lift, but there is no instruction for the pilot to consider
starting to circle.
1:
(RELATIVE ZERO) Lift is detected when the relative vario is
greater than zero, so the glider is expected to be able to climb
if it slows to circle.
2:
(GROSS ZERO) Lift is detected when the glider is climbing
at the current speed.
3:
(RELATIVE MACCREADY HALF) Lift is detected when the
relative vario is greater than half the MacCready setting. This
indicates the glider is expected to climb well if it slows to circle.
4:
(NET MACCREADY HALF) Lift is detected when the air mass
velocity is greater than half the MacCready setting. This indicates the glider is expected to climb well if it slows to circle.
ToneClimbComparisonType
0
2
0
Comparison method used to detect climb states
0:
(NONE) No comparison made, state LOW is disabled. This
may be used if the pilot wants a simple vario tone in climb.
1:
(MACCREADY) The state is HIGH if the gross vario value is
greater than the MacCready setting. This can be used to assist the pilot in assessing whether the MacCready setting is
appropriate for the conditions, and whether the current thermal should be discarded.
2:
(AVERAGE) The state is HIGH if the gross vario value is
greater than the average gross vario value. The averager
time window can be customised. This can be used to assist
the pilot in centering the thermal and in evaluating how the
climb rate is evolving over time.
Cruise Faster
ToneCruiseFasterBeepType
0
5
3
Cruise faster tone beep type. See A.2 for more details.
ToneCruiseFasterPitchScheme
0
8
4
Cruise faster tone pitch. See A.3 for more details.
ToneCruiseFasterPitchScale
0
5
0
Cruise faster nonlinear tone scale. See A.4 for more details.
ToneCruiseFasterPeriodScheme
0
9
0
Cruise faster beep duration. See A.5 for more details.
9
Vega System Parameter Reference • VEGA-SysPar-EN
1
PARAMETERS
[Label]
[Min]
[Max]
[Default] [Description...]
ToneCruiseFasterPeriodScale
0
5
0
Cruise faster nonlinear tone scale. See A.4 for more details.
Cruise Slower
ToneCruiseSlowerBeepType
0
5
5
Cruise slower tone beep type. See A.2 for more details.
ToneCruiseSlowerPitchScheme
0
8
4
Cruise slower tone pitch. See A.3 for more details.
ToneCruiseSlowerPitchScale
0
5
0
Cruise slower nonlinear tone scale. See A.4 for more details.
ToneCruiseSlowerPeriodScheme
0
9
0
Cruise slower beep duration. See A.5 for more details.
ToneCruiseSlowerPeriodScale
0
5
0
Cruise slower nonlinear tone scale. See A.4 for more details.
Cruise Lift
ToneCruiseLiftBeepType
0
5
1
Cruise lift tone beep type. See A.2 for more details.
ToneCruiseLiftPitchScheme
0
8
7
Cruise lift tone pitch. See A.3 for more details.
ToneCruiseLiftPitchScale
0
5
0
Cruise lift nonlinear tone scale. See A.4 for more details.
ToneCruiseLiftPeriodScheme
0
9
7
Cruise lift beep duration. See A.5 for more details.
ToneCruiseLiftPeriodScale
0
5
0
Cruise lift nonlinear tone scale. See A.4 for more details.
Circling Fast
ToneCirclingClimbingHiBeepType
0
5
1
Circling climbing high tone beep type. See A.2 for more details.
ToneCirclingClimbingHiPitchScheme
0
8
5
Circling climbing high tone pitch. See A.3 for more details.
ToneCirclingClimbingHiPitchScale
0
5
0
Circling climbing high Cruise slower nonlinear tone scale.
See A.4 for more details.
ToneCirclingClimbingHiPeriodScheme
0
9
5
Circling climbing high beep duration. See A.5 for more details.
ToneCirclingClimbingHiPeriodScale
0
5
0
Circling climbing high Cruise slower nonlinear tone scale.
See A.4 for more details.
Vega System Parameter Reference • VEGA-SysPar-EN
10
1
PARAMETERS
[Label]
[Min]
[Max]
[Default] [Description...]
Circling Slow
ToneCirclingClimbingLowBeepType
0
5
2
Circling climbing low tone beep type. See A.2 for more details.
ToneCirclingClimbingLowPitchScheme
0
8
5
Circling climbing low tone pitch. See A.3 for more details.
ToneCirclingClimbingLowPitchScale
0
8
0
Circling climbing low Cruise slower nonlinear tone scale. See
A.4 for more details.
ToneCirclingClimbingLowPeriodScheme
0
9
5
Circling climbing low beep duration. See A.5 for more details.
ToneCirclingClimbingLowPeriodScale
0
5
0
Circling climbing low Cruise slower nonlinear tone scale. See
A.4 for more details.
Circling Descent
ToneCirclingDescendingBeepType
0
5
4
Circling descending tone beep type. See A.2 for more details.
ToneCirclingDescendingPitchScheme
0
8
5
Circling descending tone pitch. See A.3 for more details.
ToneCirclingDescendingPitchScale
0
5
0
Circling descending Cruise slower nonlinear tone scale. See
A.4 for more details.
ToneCirclingDescendingPeriodScheme
0
9
0
Circling descending beep duration. See A.5 for more details.
ToneCirclingDescendingPeriodScale
0
5
0
Circling descending Cruise slower nonlinear tone scale. See
A.4 for more details.
11
Vega System Parameter Reference • VEGA-SysPar-EN
2
2
DATA PROTOCOL
Data protocol
This chapter documents the data protocol used for Vega specific functions. The protocol complies
with the NMEA-0183 standard, and this document assumes you are familiar with NMEA-0183
and serial communications. The proprietary sentences used by Vega are prefixed with ‘PD’. All
sentences have the check sum suffix, e.g. *4B.
2.1
2.2
Summary
$PDVDV
$PDVDS
$PDVVT
$PDSWC
Air data outputs
Variometer air data output vario basics
Variometer air data output speed/stall
Variometer air data output temperature/humidity
Vega switch data
$PDVMC
$PDVGP
In-flight inputs
Set MacCready value
Set glide polar data
$PDVAZ
$PDVSC
Configuration inputs
Accelerometer calibration fine tuning (zero)
Vega set/request configuration
$PDVSD
$PDVDD
Diagnostics
Diagnostics output
Commanded demo climb rate and airspeed
Air data outputs
These are output to PORT B for use by a PDA/EFIS glide computer.
PDVDV sentence
• Prefix
$PDVDV,vario,ias,densityratio,altitude,
staticpressure,flying
• Description
• Mnemonic
• Content
Variometer fast data output vario basics
(V)ariometer Air (D)ata output (V)ario basics
- vario
- ias
- densityratio
- altitude
- staticpressure
- flying
• Originator
• Consumer
variometer reading (indicated) in 0.1 m/s
indicated airspeed in 0.1 m/s
square root of air density ratio *1024
m, altitude
10 Pa
boolean, 1 means flying
Vega
PDA/EFIS
Vega System Parameter Reference • VEGA-SysPar-EN
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2
DATA PROTOCOL
• Use
• Frequency
• Example
Output from digital filtered sensor information, primary use in
audio vario generation and nav computer
5 Hz
$PDVDV,32,234,1030,400,10105,1*XX
This means a reading of 3.2 m/s lift, 23.4 m/s indicated
airspeed, density ratio is 1030/1024 (true airspeed is then
23.4*1030/1024), altitude is 400 meters, static pressure is
1010.5 hPa.
PDVDS sentence
• Prefix
• Description
• Mnemonic
• Content
- nx
- nz
- flap
- stallratio
- netto
• Originator
• Consumer
• Use
• Frequency
• Example
$PDVDS,nx,nz,flap,stallratio,netto
Variometer fast data output speed/stall
(V)ariometer Air (D)ata output (S)peed/stall
X acceleration in hundredths of G
Z acceleration in hundredths of G
flap position
percent, ratio of stall port airspeed to IAS
Netto vario in tenths of m/s
Vega
PDA/EFIS
Output from digital filtered sensor information, primary use in
audio generation and nav computer
2 Hz
$PDVDS,-004,108,0,80,20*XX
This means an X acceleration of 0.04g aft, 1.08g down, flap
set to position zero, the stall airspeed is 80the true airspeed,
and the Netto vario is 2.0 m/s. When this value reaches a
critical level based on externally set calibration value the
Vega Voice module will raise the stall alarm.
PDVVT sentence
• Prefix
• Description
• Mnemonic
• Content
- temp
- humid
• Originator
• Consumer
• Use
• Frequency
• Example
$PDVVT,temp,humidity
Variometer slow data output
(V)ariometer Air (D)ata output (T)emperature
outside air temperature in Kelvin *10
outside air humidity in percent
Vega
PDA/EFIS
Output from digital filtered sensor information, primary use
by nav computer
1 Hz
$PDVVT,2930,73*XX
This means 293.0 degrees Kelvin (20 degrees Celsius), 73
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Vega System Parameter Reference • VEGA-SysPar-EN
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DATA PROTOCOL
PDSWC sentence
• Prefix
• Description
• Mnemonic
• Content
- mccready
- switchin
- switchout
- battvoltage
• Originator
• Consumer
• Use
• Frequency
• Example
$PDSWC,mccready,switchin,switchout,battvoltage
Switch inputs, outputs, and MacCready updated from Vega
SWitCh
MacCready setting in 0.1 m/s
hex value of input switch states
hex value of output switch states
voltage of power supply in 0.1 Volts.
Vega
PDA/EFIS
Output from switches, MacCready and internal alert states
Sent on change
$PDSWC,23,AE,4G,123*XX
This means the MacCready is 2.3 m/s, the input state is hex
AE, the output state is hex 4G, and the battery voltage is
12.3 volts.
2.3
In-flight inputs
These sentences are typically sent by a PDA/EFIS during flight and are used to inform Vega of
glide computer data and to adjust the variometer behaviour and audio variometer sounds.
PDVMC sentence
• Prefix
• Description
• Mnemonic
• Content
$PDVMC,mc,vopt,climbmode,terrainalt,qnh
Set MacCready data
(V)ario (M)c(C)ready
- mc
- vopt
- climbmode
- terrainalt
- qnh
• Originator
• Consumer
• Use
• Frequency
MacCready value in tenths of m/s
Speed to fly in tenths of m/s
boolean, whether system is in climb/cruise
m, elevation of terrain
0.1 hPa, area QNH
PDA/EFIS
Vega
Informs vario module of MacCready value.
When MacCready or other glide computer parameters are
changed.
• Example
$PDVMC,23,1,300,10130*XX
This sets MacCready to 2.3 m/s and climb mode, terrain
elevation is 300 m, area QNH is 1013.0 hPa
PDVGP sentence
• Prefix
• Description
• Mnemonic
$PDVGP,a,b,c,minsink,vbestld,bestld,save
Set glide polar data
(V)ario (G)lide (P)olar
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2
DATA PROTOCOL
• Content
- a,b,c
: parameters of parabolic glide polar form, compensated
for bugs/ballast but not load factor
minimum sink rate in tenths of m/s
Speed of best glide in tenths of m/s
Best glide ratio *10
boolean, if true, saves this polar to flash for loading on
next start-up.
- minsink
- vbestld
- bestld
- save
• Query
$PDVGP,? returns the configuration stored in
the vario
• Originator
• Consumer
• Use
• Frequency
• Example
PDA/EFIS
Vega
Informs vario of glide polar for netto calculations etc.
When bugs/ballast is changed or new aircraft type.
$PDVGP,-123,777,-1543, 7, 250, 400, 0*XX
This sets a,b,c to values -123, 777, -1543, and minimum sink
of 0.7 m/s, best LD speed of 25 m/s and best LD of 40, but
does not save them to flash.
2.4
Configuration inputs
These sentences are typically used only during initial configuration of the device or fine-tuning
internal calibration parameters.
PDVAZ sentence
• Prefix
• Description
• Mnemonic
• Content
- magnitude
- rotation
• Originator
• Consumer
• Use
• Frequency
• Example
$PDVAZ,magnitude,rotation
Accelerometer calibration fine tuning (zero)
(V)ario (A)ccelerometers (Z)ero
10 bit integer scaled to 1024
signed rotation angle, degrees
PDA/EFIS
Vega Vario
Fine tuning of accelerometers when installed in aircraft.
Magnitude adjustment allows for minor variations in power
supply output and temperature, rotation allows for setting the
tilt angle. These values are not saved to flash.
May be used at start up by PDA/EFIS.
$PDVAZ,102,-2*XX
PDVSC sentence
• Prefix
• Description
• Mnemonic
• Content
15
$PDVSC,command,Label,Value
Vega set/request configuration
(V)ario (S)et (C)onfiguration
Vega System Parameter Reference • VEGA-SysPar-EN
2
- command
- Label
- Value
• Query
• Originator
• Consumer
• Use
• Frequency
• Example
• Comments
DATA PROTOCOL
S: Set, R: Retrieve, A: Answer
The label of the configuration parameter
The value used in Set commands.
$PDVSC,R,Label requests the configuration to be reported
as a response of the form $PDVSC,A,Label,Value.
Factory PC, PDA/EFIS
Vega Vario, PDA/EFIS, Factory PC
This is a generic interface to all configuration parameters, as
an alternative to specification in files.
Used to set or request configuration at any time.
$PDVSC,S,Blah,23*XX sets the parameter Blah to
23.
The special setting StoreToEeprom with value 3 can be used
to request settings to be saved to Eeprom.
$PDVSC,S,StoreToEeprom,3*XX
2.5
Diagnostics
These sentences may be sent by the PDA/EFIS or PC to request diagnostic data.
PDVSD sentence
• Prefix
• Description
• Mnemonic
• Content
- freetext
• Originator
• Consumer
• Use
• Frequency
• Example
$PDVSD,freetext
Diagnostic/statistics messages from vario
(V)ario (S)tatistics and (D)iagnostics
any text
Vega vario
PDA/EFIS
This is a general message sent by the vario based on a
request for diagnostics.
Infrequent, done after request by technician
$PDVSD,*XX
This activates climb demo mode and requests the vario to
send real time statistics.
PDVDD sentence
• Prefix
• Description
• Mnemonic
• Content
Commanded demo climb rate and airspeed
(V)ario (D)iagnostics and (D)emonstration
- te vario
- ias
• Originator
• Consumer
Fake TE vario climb rate in tenths of m/s.
Fake airspeed in tenths of m/s.
PDA/EFIS
Vega vario
$PDVDD, te vario,ias
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DATA PROTOCOL
• Use
• Frequency
• Example
This is sent by a utility program to set the Vegas internal
climb rate and indicated airspeed for use in testing and
demonstration purposes.
As driven by
$PDVDD,34,300*XX
This activates diagnostic/demo mode and sets the climb rate
to 3.4 m/s and the airspeed to 30 m/s. The diagnostic/demo
mode times out after approximately one minute.
2.6
Additional specifications
In addition to the NMEA sentences described here, Vega makes use of the protocol used by the
FLARM system and standard GPS sentences. All data received at PORTB (connector X1) is sent
to the PDA/EFIS at PORTA (connector X2).
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Vega System Parameter Reference • VEGA-SysPar-EN
DATA PROTOCOL
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A
VALUE TABLES
A
A.1
Value tables
FLARM Aircraft Types
01 = glider
02 = tow plane
03 = helicopter
04 = parachute
05 = drop plane
A.2
(CONST HI) Constant high pitch
(CONST MEDIUM) Constant medium pitch
(CONST LO) Constant low pitch
(SPEED PERCENT) Pitch is based on the speed command in %.
(SPEED ERROR) Pitch is based on the speed command error in %.
(VARIO GROSS) Pitch is based on gross variometer value.
(VARIO NET) Pitch is based on net variometer value.
(VARIO RELATIVE) Pitch is based on relative variometer value.
(VARIO GROSS/RELATIVE) Pitch is based on gross variometer value if
airspeed is less than 110% of best glide speed, otherwise pitch is based
on relative value.
Pitch Scale
0:
1:
2:
3:
4:
19
(SILENCE) 100% off
(SHORT) 25% on, 75% off
(MEDIUM) 50% on, 50% off
(LONG) 75% on, 25% off
(CONTINUOUS) 100% on
(SHORT DOUBLE) 11% on, 11% off, 11% on, 66% off
Pitch Schemes
0:
1:
2:
3:
4:
5:
6:
7:
8:
A.4
11 = balloon
12 = blimp, zeppelin
13 = UAV (DRONE)
15 = static
Beep Types
0:
1:
2:
3:
4:
5:
A.3
06 = fixed hang-glider
07 = soft para-glider
08 = powered aircraft
09 = jet aircraft
10 = UFO
(LINEAR) No nonlinear scaling is performed.
(LOWEND) The low magnitude region is amplified, and the high magnitude region is reduced.
(HIGHEND) The high magnitude region is amplified, and the low magnitude region is reduced.
(LINEAR NEG) No nonlinear scaling is performed, reverse convention.
(LOWEND NEG) The low magnitude region is amplified, and the high
magnitude region is reduced, with reversed convention.
Vega System Parameter Reference • VEGA-SysPar-EN
A
5:
VALUE TABLES
(HIGHEND NEG) The high magnitude region is amplified, and the low
magnitude region is reduced, with reversed convention.
Scaling of tone tables
output
LINEAR
LINEAR NEG
input
output
LOWEND
LOWEND NEG
input
output
HIGHEND
HIGHEND NEG
input
A.5
Beep Duration
0:
1:
2:
3:
4:
5:
6:
7:
(CONST HI) Constant long duration
(CONST MEDIUM) Constant medium duration
(CONST LO) Constant low duration
(SPEED PERCENT) Duration is based on the speed command error in
%.
(SPEED ERROR) Duration is based on the speed command error in %.
(VARIO GROSS) Duration is based on gross variometer value.
(VARIO NET ) Duration is based on net variometer value.
(VARIO RELATIVE) Duration is based on relative variometer value.
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A
VALUE TABLES
8:
9:
21
(VARIO GROSS/RELATIVE) Duration is based on gross variometer
value if airspeed is less than 110% of best glide speed, otherwise duration is based on relative value.
(CONST INTERMITTENT) Duration is beeping on for 3 seconds, off for
7 seconds.
Vega System Parameter Reference • VEGA-SysPar-EN
B
Schemes
volume
B.1
Dead band types
Deadband Type STEP
Deadband Type RAMP
STEP
RAMP
d low
d high
input
Vega System Parameter Reference • VEGA-SysPar-EN
volume
B
SCHEMES
d low
d high
input
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