PID Tuning Guide As seen in
For the Allen-Bradley Family of PLCs
Forward by Robert C. Rice,
PhD
Tuning PID controllers can seem a mystery. Parameters that provide effective control over a process one day fail to do so the next. The stability and responsiveness of a process seem to be at complete odds with each other. And controller equations include subtle differences that can baffle even the most experienced practitioners. Even so, the PID controller is the most widely used technology in industry for the control of business-critical production processes and it is seemingly here to stay.
This guide offers a "best-practices" approach to PID controller tuning. What is meant by a "best-practices" approach? Basically, this guide shares a simplified and repeatable procedure for analyzing the dynamics of a process and for determining appropriate model and tuning parameters. The techniques covered are used by leading companies across the process industries and they enable those companies to consistently maintain effective and safe production environments. What's more, they're techniques that are based on Control Station's Practical Process Control - a comprehensive curriculum that has been used to train over a generation of process control professionals.
Our guide provides the fundamentals - a good starting point for improving the performance of PID controllers. It offers an introduction to both the art and the science behind process control and PID controller tuning. Included are basic terminology, steps for analyzing process dynamics, methods for determining model parameters, and other valuable insights. With these fundamentals we encourage you to investigate further and fully understand how to achieve safe and profitable operations. As I shared, the PID controller appears here to stay.
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