EMS 221 Display Warning Messages?

[sunfish]

I may be premature in asking this because I have yet to fiinish my research.

I believe I understand that the Rotax 912 iS ECU pushes a variety of warning messages onto the CAN bus and that the Stock Flight Systems engine display unit can trap and display some of them.

If this is correct, can the Skyview EMS 221 do the same thing either now or in a future upgrade?

The Two I can think of in flight situations are a plugged air filter - the 912iS has an ambient air pressure sensor that is to be mounted just outside the filter as well as an airbox pressure sensor and the ECU apparently provides a warning message for this condition. The other is a plugged fuel filter (I think I can probably trap this by a maximumm pressure setting).

There may be others, such as partial igntion failures, plugged fuel injectors and sensor failures that one may want to know about during flight.

 

[Dynon]

SkyView's EMS capabilities give you everything you need for routine flight with the 912 iS. There are some additional things we'd like to do, such as detecting conditions that could indicate things like the plugged air filter as you mention. I should mention that the ECU does not provide this information - EFIS/EMS manufacturers such as us need to evaluate the raw inputs and determine when something is amiss. Historically, Rotax has not provided too much supplemental guidance on the proper way to detect such anomalies, but we're in better touch with them these days and hope to add neat capabilities to SkyView's software over time.

 

[sunfish]

Thank you very much for your concise and helpful reply. I'll add my voice to the discussion with Rotax through the Australian agent and Rotax Owner dot com.

Digital fault diagnosis and isolation has been around in commercial jets since at least 1973.

If the Rotax ECU is as smart as it is supposed to be, I would really like it to give me a real time  indication of what it thinks is going wrong as that information may allow me to make a better decision about what to do about it on the spot.