Message Data (Z Format) - Garmin GNS 480 Installation Manaul

Appendix B - Serial Interface Specifications
Item Message
Desig Format
ZA ddd
ZB ddd
ZC ddd
ZD sdddd
ZE sdddd
ZF sdd
ZG sdd
ZH ddd
ZI ddd
ZJ sdd
ZK sddd
ZL ddd
ZM dddd
ZN ddddd
ZO dddd
ZP ddddd
ZQ ddd
ZR ddd
ZS ddd
ZT ddd
ZU dddddd
ZV sddd
ZW sddmmhh
ZX sdddmmhh
ZY ddd
B-6
Table B-4. Fuel/Air Data Message Data (Z Format)
Message Field Message Description
Mnemonic Width
IAS 7 Indicated Air Speed in knots
TAS 7 True Air Speed in knots
MACH 7 Mach Speed in thousandths
PALT 9 Pressure Altitude in tens of feet, +/- sea level
DALT 9 Density Altitude in tens of feet, +/- sea level
OAT 9 Outside Air Temp - or "Total", in degrees Celsius
TAT 7 True Air Temp - or "Static", in degrees Celsius
WDIR 7 Wind Direction, 0 to 359 degrees from true north
WSPD 7 Wind Speed in knots
TURN 7 Rate of Turn in +/- degrees/second, + is right, - is left
VSPD 8 Vertical speed in tens of feet/minute
HEAD 7 Heading, 0 to 359 degrees from true north
RFF 8 Right Engine Fuel Flow in tenths of gallons/hour
RFU 9 Right Engine Fuel Used in tenths of gallons
LFF 7 Left Engine Fuel Flow in tenths of gallons/hour
LFU 9 Left Engine Fuel Used in tenths of gallons
ERR 7 Error Log / Reason Indicator: 001 = temp sensor error; 000 =
no errors
CKSM1 7 Checksum of labels A to Q (0 to 255)
GSP 7 Ground speed (0-999 knots)
TRK 7 Track (0 to 359 degrees, magnetic)
DIS 1 Distance to Destination (0 to 999999, nm * 100)
MVAR 8 Magnetic Variation (0 to 999 degrees, deg * 10), s = E or W
where E = east, W = west
LAT 13 Current Latitude, s = N or S, dd = degrees, mm = minutes
LON 14 Current Longitude, s = E or W, ddd = degrees, mm =
minutes, hh = hundredths of minutes
CKSM2 7 Checksum of labels S to X (0 to 255)
560-0982-01 Rev L GNS 480 (CNX80) Installation Manual