PLC-based advanced PID controllers (parte 1)

Abstract

[ES] Se diseñará un control PID avanzado con diferentes lenguajes de programación en TIA-Portal sobre un PLC Siemens S7-1214C. El control PID se aplicará sobre el modelo de un tanque calefactor simulado con LabVIEW, utilizando una tarjeta de National Instruments como interfaz.

[EN] The PID controller is a very interesting concept. It is used every day and precision is very important. Because of this we want to learn more about this subject. It is very interesting to use the theory in order to make something practical. We encountered some problems when we needed to choose the right controller. There are several controllers for different purposes. We tested and compared all the factors and afterwards we made one. After testing and making one, we came to surprising conclusions. In this paper we show you the difficulties and solutions of the PID. You will see how to implement the PID and also the chart of the PID. We can conclude that you should be aware of the different controllers before you implement one. It is a very complex system and very sensitive. A homemade PID is not the same as an standard PID, but it was an interesting project to carry out. Niels