CONTROL DE NIVEL DE LÍQUIDO IMPLEMENTADO EN LA PLANTA DE ENTRENAMIENTO GUNT RT-450 CON TECNOLOGÍA SIEMENS (PLC S7-1200 Y HMI KTP 400 MONO BASIC PANEL)

Abstract

This project develops and implements a new control system for the plant and operation level Gunt Hamburg RT 450 Industrial Instrumentation Laboratory, based on SIEMENS technology. To do this, use the S7-1200 PLC and HMI KTP 400 BASIC MONO PN, TIA PORTAL programmed by software and communicated via the Profinet protocol. The operation of the plant is divided into manual mode and automatic mode, using the PID_Compact instruction scheduling. The liquid level in the tank is measured with a capacitive sensor, the signal is processed in the PLC, and according to the requirements, a proportional valve is commanded from the HMI, which allows the flow of the same. For the development of this project was essential to use tools such as LabVIEW Signal Express for the obtaining of transfer function of the plant and Matlab for obtaining the controller. The appropriate controller selection was defined using self-tuning tools of the instruction PID_Compact, previously testing with different types of controllers. Finally, a practical guide based on this project for students of Industrial Instrumentation Laboratory was created.