I have a question about what sort of input/output card and software could accomplish this task:
I turn on window heat 10 minutes before taxiing on a 90 degree day. The overheat circuit trips the window heat off illuminating the amber indicators and extinguishing the green indicators.
I perform a reset of the window heat by cyling the four switches and each of the amber indicators extinguishes in turn. During the reset cycling, the green indicators do not illuminate, it only extinguishes the amber indicators esentially starting over again with all window heat off.
Could logic be programmed for a certain ambient temperature or an ambient temperature and a taxi speed (relative wind helping to cool the glass)?
"If the ambient air temperature is at or above XX degrees with window heat ON and taxi speed is at or below XX degrees, window heat will trip off."
"If window heat is tripped OFF, green indicators will extinguish and amber indicators will illuminate."
I'm very curious about what would be needed to accomplish this.