This model represents a first order Quantized State System integrator.
As inputs, it has to receive messages with type == 1 and value the value of the signal to integrate.
It generates an output message with type == 1 and the value of the integrated signal.
The quantum parameter represents the threshold to detect changes in the input signal.
The startX parameter represents a guess for the initial value of the input signal.
model QSS1 = SRC.QSS.IntegratorQSS1.integratorQSS1;