Peer-Reviewed, Open Access, Fully Refereed International Journal

Keywords: PLC,HMI(Human Machine Interface),Automation, Water Management, Ladder Logic, Data Logging, 
Level Monitoring, Society Impact, Water Management. 
I. 
INTRODUCTION 
In this paper, we will discuss the automation of water supplying systems using PLCs, its advantages, and how it 
can be implemented. Automating water supply systems using Programmable Logic Controllers (PLCs) is 
becoming increasingly popular due to the many benefits it offers. Here we used a PLCs (a computer-based 
control systems)which used to automate,manage and control the water supply , level and modes of operations 
with multiple mordernized functions . In the case of water supply systems, PLCs can be used to control the flow 
of water through pipes, tanks, pumps, and valves, thereby ensuring efficient and effective management of the 
system.With PLC-based automation, water supply systems can be made more reliable, efficient, and cost-
effective. For instance, a PLC-based system can monitor the water level in a tank and automatically start or stop 
the pump based on the demand. The system can also detect leaks, pressure drops, and other issues in the 
pipeline and alert operators, thereby preventing wastage and reducing downtime. The advantage of using this 
method is to reduce human mistakes and ensure proper distribution.
II. 
METHODOLOGY 
The proposed model is introduced to overcome all the existing old systems and move us towards the 
modernized environment. Here all the input (switches and sensors) and outputs (pumps,valves and indicators) 
are connected to the PLC and the HMI is programmed and interfaced with the PLC through RS232 
comunication.
Tank level 
Here once the process is started,initially the level of the central water tank is measured with the two typical 
level sensors that is low level sensor and high level sensor which probabbly sends the input (level) to the PLC. 
Depend on the level of the tank the sub level water pump is powerd up automatically and fills the tank untill the 
plc recive the input from the high level sensor to avoid the overflow. 

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e-ISSN: 2582-5208 
International Research Journal of Modernization in Engineering Technology and Science