Normally, control of embedded systems is performed as follows: signals are input from sensors and external devices; the CPU performs calculations, judgments, and the like on them; and the system then outputs an appropriate signal.
There are many different kinds of sensors; some examples are temperature, illumination, and accelerations sensors. In many cases, the sensors focus on analog changes over time in particular. A temperature sensor, for example, monitors air or water for changes in temperature. Another example is an acceleration sensor, which monitors changes in acceleration, such as a pedometer, which measures how much a person has actually walked.
As shown below, CS+ makes it possible to get a visual grasp of changes in variables over time. This lets you analyze changes in values input from sensors, and whether parameters are correctly set, and control performed correctly, in response to those changes, which enables you to improve the quality of control.