AUTOMATION OF SERIES TANK LEVEL CONTROL USING PLC AND HMI

Electronic Engineering

The proposed system provides an analysis of the simulation and components required for the implementation of an automated level control system by the help of Programmable Logic Controller (PLC). Water level management using PLC is design to control the level of water and avoid wastage of water in the tank. This system has an automatic pumping system attach to it. The purpose of this paper is reducing time consumption and human resource consumption, increase product revenue and greater accessibility or more security. Also by using this paper the wastage of water occurred by overflowing of tanks can be avoided. The proposed model can effectively supervise level control in multiple tanks. Four level sensors were used to provide the level data to the PLC. PLC used this data to take the required decisions and thereby turning ON and OFF a pump. A manual switch was also provided to override the automatic system. The SIMATIC universal controller was used as the main decision making module. The system was implemented to create the required Human Machine Interface (HMI). Modifications can be made by using float sensors model which would effectively provide the correct level but cost would increase and vibration of the sensor might disrupt the result, our model effectively counters those short comings. In future by making some changes this project can be used in different industries related to fluids like petroleum industries or oil refineries for controlling the level of filling the tanks and avoid wastage.

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