Which components are typically included in a control system diagram?

In a control system diagram, the primary components that are typically included are sensors, controllers, and actuators. These elements are fundamental to the functioning of a control system.

Sensors are used to monitor the output of the system or the process variable, providing real-time data on the system's state. This information is crucial for the controller, which processes the data and determines the necessary actions to be taken to maintain or achieve the desired setpoint. The controller then sends commands to the actuators, which implement the changes required to adjust the system accordingly.

Together, these components create a feedback loop that is essential for precise and effective system control. By including sensors, controllers, and actuators in the diagram, one can effectively represent the entire control process from measurement to actuation, illustrating how the system responds to changes in its environment to maintain optimal performance.

Other components like power sources and displays, while important for a full system setup, do not constitute the core functional parts of the control system itself. Focusing solely on actuators and sensors or controllers and feedback paths also omits critical components necessary for complete system understanding.