Water Level Controller

Mohd Firdaus, Abd Ghani (2006) Water Level Controller. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

In life today the study of Programmable Logic Controllers (PLC) becomes one of the most important things in all fields. Programmable Logic Controllers were developed to provide a replacement for large relay based control panels. These systems were inflexible requiring major rewiring or replacement whenever the control sequence was to be changed The purpose of using this PLC is to control the water's level in tank and when it come to the set point of desired level it will automatically stop or on the pump and also it will give a signal to user so that the user know either the pump is on or off and the level of water. So as the input of the PLC we need the sensor to determine the level of the water in tank empty, half empty or full. When it comes to the set point, the pump will on or off. This process using PID controller to determine the level of the water .We using this type of control because we need to do it continuously to control the water without any shortage that's why we using PID controller. We improve the transient response then we improve the steady state error. Then the monitor of the level will monitor by the touch screen and design it by NS - Designer.

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