Dynon Avionics SkyView Classic - DYNON EMS Serial Data Format

Appendix E: Serial Data Output
SkyView System Installation Guide - Revision AA 25-7
DYNON EMS Serial Data Format
The following section details the format of EMS data output to the serial port:
Position
Width
Name
Pin
Description
1
1
Start
Character
‘!’
2
1
Data Type
3 = EMS Data. Other Dynon Avionics
formats look similar, and may be
interleaved, this bit indicates what kind of
data will follow.
3
1
Data
Version
Currently 2. This is the version of the data
represented below and will change if
there is a future version that changes
data. Data version changed at SkyView
Software v5.1.
4
8
System
Time
HHMMSSFF, current Zulu time according
to SkyView’s internal clock which is
synchronized with GPS time if GPS is
available. HH is the hour from 00 to 23.
MM is the minute from 00 to 59. SS is the
second from 00 to 59. HHMMSS are ‘-------
-‘ if GPS time has never been available. FF
is the 1/16-second fraction counter from
00 to 15, and may skip digits if baud rate
is too low to send data at 16Hz.
12
3
Oil Pressure
(PSI)
Varies
(see note 1)
000 to 999 or XXX. Oil pressure in
PSI. There must be a pressure sensor
named “OIL” for this to work. See note 2.
15
4
Oil Temp
(deg C)
Varies
(see note 1)
+/- then 000 to 999 or XXX. Oil
temperature in C. There must be a
temperature sensor named “OIL” for this
to work. See note 2.
19
4
RPM L
C37 P32/34
0 to 9999. RPM from Left input.
23
4
RPM R
C37 P33/35
0 to 9999. RPM from Right input.
27
3
Manifold
Pressure
(inHg)
C37 P26
0 to 600. Manifold Pressure in 0.1 inHg.
299 = 29.9 inHg. There must be a pressure
sensor named “MAP” for this to work. See
note 2.
30
3
Fuel Flow 1
(gal/hr.)
C37 P14
000 to 999. Fuel flow in 1/10
th
Gallons Per
Hour. 086 = 8.6 GPH. See note 2.
33
3
Fuel Flow 2
(gal/hr.)
C37 P19
000 to 999. Fuel flow in 1/10
th
Gallons Per
Hour. 086 = 8.6 GPH. This is usually return
flow. See note 2.