Dynon Avionics SkyView System Installation Guide - Manual (Page 145)

SV-EMS-220/221 Installation and Configuration
SkyView System Installation Guide – Revision S 7-33
> DUAL ENGINE MODE: NO
> PRIMARY EMS MODULE: (select a S/N)
On the SV-EMS-220 selected as primary, all pins on the 37-pin and 25-pin connectors are
enabled. On the secondary SV-EMS-220, only the thermocouple (CHT/EGT) inputs on the 37-pin
and the 25-pin connectors are enabled.
Dual Engine Support using two SV-EMS-220/221s and two SkyView Displays
SkyView can monitor dual engines by displaying engine data for each engine on separate
SkyView displays. Engine #1 is assigned to one SV-EMS-220/221 module and one SkyView
display. Engine #2 is assigned to the other SV-EMS-220/221 module, and another SkyView
display. Thus, two SV-EMS-220/221s, and at least two SkyView displays are required. To set up
dual engine monitoring, go to:
SETUP MENU > EMS SETUP > DUAL EMS SETUP:
> DUAL ENGINE MODE: YES
> ENGINE #1 EMS: (select S/N of the appropriate SV-EMS-220/221)
> ENGINE #2 EMS: (select S/N of the appropriate SV-EMS-220/221)
> SPLIT FUEL COMPUTER: YES/NO. Set to YES if you want the fuel computer(s) to display
information based only on the engine assigned to the individual display(s). Set to NO if you
want the fuel computer(s) to display information based on both engines. One would normally
choose YES if the Engine #1 and Engine #2 fuel systems are completely isolated and NO if the
Engine #1 and Engine #2 fuel system are fed by a common fuel system.
For dual Rotax 912 iS with dual SV-EMS-221s that do not have individual fuel flow sensors
installed (using only CAN BUS fuel flow), set SPLIT FUEL COMPUTER to YES; setting SPLIT FUEL
COMPUTER to NO will not display correct, combined fuel computer information.
On the SkyView display that will display Engine #1 data, go to:
SETUP MENU > LOCAL DISPLAY SETUP > ENGINE TO DISPLAY > EMS #1 > ACCEPT (
On the SkyView display that will display Engine #2 data, go to:
SETUP MENU > LOCAL DISPLAY SETUP > ENGINE TO DISPLAY > EMS #2 > ACCEPT (
In a dual engine configuration, streamed EMS data (serial TX – DYNON EMS) is not
supported.
After setting up dual engine support above, changes made to engine configuration or EMS page
layout affect only that display, and the configuration of the SV-EMS-220/221 associated with it.
For example, changing a setting, or widget layout, for Engine #1, will not cause changes to
settings or layout for Engine #2.
If, after setting up dual engine support per the above instructions, if DUAL ENGINE
SUPPORT is later changed to NO, engine timer values (such as HOBBS) displayed on
the individual EMS screens will be reset. One SkyView display’s timers will
overwrite timers on all other displays.