This component will determine which of three ranges the input signal is within, and then output a value corresponding to that region. The regions are defined by a lower input limit and an upper input limit.
The first region is composed of values below the lower limit; the second region is composed of values between the two limits (inclusive); and the third region is composed of values above the upper limit.
If the first and third regions are set to produce the same value, then this component functions as a band detector, outputting one value if the input is between the two limits, and a different value it the input is outside the limits.