Overview This tutorial shows the characteristics of the proportional (P), the integral (I), and the derivative (D) controls, and how to use them to obtain a desired response. This tutorial uses LabVIEW 8.2 with LabVIEW Control Design Toolkit. These tutorials are based on the Control Tutorials developed by Professor Dawn Tilbury of the Mechanical Engineering department at the University of Michigan and Professor Bill Messner of the Department of Mechanical Engineering at Carnegie Mellon University and were developed with their permission. The Three-Term Controller Consider the following unity feedback system: Figure 1: Unity Feedback System Plant: A system to be controlled Controller: Provides the excitation for the plant; Designed to control the overall system behavior The transfer function of the PID controller looks like the following: pid
