Real time pi implementation on liquid level control by means of PLC

Abstract

In this study, main purpose is the desired level in the shortest time by the PI controller of the liquid level and is intended to remain constant at this value. PID parameters required using the delay system for choosing Control parameters are calculated in accordance with the characteristics of the system. Siemens S7-300 PLCusing the liquid level control study was conducted in real time. Located in the Simatic Manager software program FB41 PID Controller block, ultrasonic sensors to collect the data was used for the liquid feed pump.