Installation guide

Appendix E: Serial Data Output
SkyView System Installation Guide - Revision R 24-7
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 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 version 5.1.
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 1/10th 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 1/10th Gallons Per
Hour. 086 = 8.6 GPH. This is usually return
flow. See note 2.