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Based on feedback and popular demand, we've released a new series in Opto 22's online training that covers everything related to PID control. A *proportional-integral-derivative* (PID) control loop monitors an input, or *process variable*, compares the variable’s current value to a desired target value (the *setpoint*), and dynamically calculates the appropriate *output* value required to drive the variable to its setpoint safely. Where would a PID control loop be used?  A common commercial example would be your car's cruise control. But, in industrial automation, you might think about these possible scenarios: - A pump maintaining a tank level - A heater maintaining the temperature of a room - A compressor maintaining tank pressure If you want to learn more about building these very useful control mechanisms in PAC Control, set aside about 45 minutes and dive into the [PID Control training series](https://training.opto22.com/series/groov-epic-training-series/pid-control-with-pac-control).  [![PID Control OptoU online training](https://blog.opto22.com/hs-fs/hubfs/PID_lessons.jpg?width=400&name=PID_lessons.jpg)](https://training.opto22.com/series/groov-epic-training-series/pid-control-with-pac-control) You will learn how to assess if a PID control algorithm is practical for your system and how to configure one to meet your needs. **Topics include:** Overview - PID Concepts - PIDs on *groov* I/O and SNAP PAC I/O Units Setting Up a PID - Configuring a TPO PID Loop - Programming a TPO PID Loop - Configuring a PID Loop Using Analog I/O - Calculating the Scan Rate, P, I, and D Terms Help with Tuning a PID  - Working with PIDs in Debug Mode - PID resources ##### New to OptoU? [![OptoU](https://blog.opto22.com/hs-fs/hubfs/OptoU-GoldSeal_600.jpg?width=175&name=OptoU-GoldSeal_600.jpg)](https://training.opto22.com/)[Registration is free](https://accounts.skilljar.com/accounts/login/?t=2qpmi9ye3nixw&d=jq7yom859q83&next=%2Fauth%2Fendpoint%2Flogin%2Fresult%3Fd%3Djq7yom859q83%26next%3D%252F) and all online classes include: - The same curriculum that's used in our factory classroom training. - Step-by-step lessons with both video and text instructions - A user log in that allows you to return to previous lessons as well as check your knowledge with end-of session quizzes. - And did we mention it's free? We hope these new [PID Control lessons](https://training.opto22.com/series/groov-epic-training-series/pid-control-with-pac-control) are the first of many learning paths you take!   Topics: [Training](https://blog.opto22.com/optoblog/topic/training), [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [PID loop control](https://blog.opto22.com/optoblog/topic/pid-loop-control), [OptoU](https://blog.opto22.com/optoblog/topic/optou) ### Written by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) Janice has worked at Opto 22 for over 20 years and is part of the marketing team that strives to share new and relevant content with the industrial automation industry. She enjoys books, camping, country music, and spending time with family and friends. 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