Model 4000/6000 Serial Data List

All data is transmitted at 9600 baud, one stop bit, no parity. The first 3 bytes are a header
that is unique, and will not show up in the data stream.

All 2 byte data is listed with an "H" and an "L" following the name of the data.  To combine these
two bytes into the result, multiply the high word by 256 and add the low word to the result.

All data is scaled with the least significant bit = 1 unless noted. All data is unsigned unless noted.


$FE        ; Header word #1 (Decimal 254)
$FF        ; Header word #2 (Decimal 255)
$FE        ; Header word #3 (Decimal 254)
TACHH      ; Tachometer - Resolution = 1
TACHL
CHT1H      ; CHT and EGT follow all have
CHT1L      ; a resolution of 1 deg
CHT2H
CHT2L
CHT3H
CHT3L
CHT4H
CHT4L
CHT5H
CHT5L
CHT6H
CHT6L
EGT1H
EGT1L
EGT2H
EGT2L
EGT3H
EGT3L
EGT4H
EGT4L
EGT5H
EGT5L
EGT6H
EGT6L
AUX5H       ; Auxiliary 5
AUX5L       ; 
AUX6H       ; Auxiliary 6
AUX6L       ; 
ASPDH       ; Airspeed (units are the same as displayed on the EIS)
ASPDL       ;
ALTH        ; Alitiude in feet
ALTL
VOLTH       ; resolution of 0.1 Volts
VOLTL
FUELFH      ; Fuel Flow (Gallons/Hour) resolution of 0.1 gallons/hour
FUELFL      ;
UNIT        ; Internal Insturment temperature
CARB        ; 2's compliment
ROCSGN      ; Vertical speed - 100 fpm resolution 2's compliment
OATH        ; 2's compliment - there is no low word
OILTH       ; Oil Temperature
OILTL
OILP
AUX1H       ; Auxiliary 1
AUX1L
AUX2H       ; Auxiliary 2
AUX2L
AUX3H       ; Auxiliary 3
AUX3L
AUX4H       ; Auxiliary 4
AUX4L
COOLH       ; Coolant Temperature
COOLL
ETIH        ; Hourmeter - Resolution = 0.1 hours
ETIL        ;
QTYH        ; Fuel Quantity (fuel flow totalizer) Resolution = 0.1 gallons
QTYL
HRS         ; Flight timer hours
MIN         ; Flight timer seconds
SEC         ; Flight timer seconds
ENDHRS      ; Fuel FLow time until empty - Hours
ENDMIN      ; Fuel FLow time until empty - Minutes
BAROH       ; Baroset in In HG - Resolution 0.01
BAROL       ;
MAGHDH      ; Magnetic Heading - Hi word
MAGHDL      ; Magnetic Heading - Lo word -resolution 0.1 degrees
SPARE       ; Reserved.

Checksum (data summed and result complimented) is transmit here - 1 word. The checksum
does not include the header, but does include the "SPARE" word. The checksum is a single, 
8-bit word.