Analog signal input or external battery voltage measurement. This connection could be used for an external sensor to measure altitude (LIDAR), temperature and so on. This sensor provides a voltage reading.
The first part of this menu is to set the conversion from the voltage measurement to the physical variable, according to the offset and sensitivity of the sensor: Measure = Sensitivity x (Vin – Offset). The result is stored in a variable selected by the user.
The next part allows the creation of an alarm variable that will be triggered when the measured value is lower or greated than a fixed values. For example, in the case of an altimeter, an alarm could be triggered when the measure is lower than 0 or greater than 200 meters. The alarm is stored in a variable selected by the user.