Design and Implementation of An Automated Liquid Level Controller using Sensor and PLC

Zaiayu, A.Rahman (2006) Design and Implementation of An Automated Liquid Level Controller using Sensor and PLC. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Page) Design and Implementation of An Automated Liquid Level Controller using Sensor and PLC.pdf - Submitted Version Download (1MB)

Abstract

Design and implementation the automated liquid level controller using ultrasonic sensor and programmed PLC (Programmable Logic Controller) is a reverse engineering project, where level measurement can be defined as the determination of the position of an existing interface between two media. The ultrasonic sensor will provide the feedback information required to control the process based on a sound wave emission source and the reflection of a sound wave pulse. The PLC is a self contained, rugged computer designed to control processes and contains a microprocessor that has been programmed to drive the output terminals in a specific manner based on the signals from input terminals. Entirely this project consists two main parts in term of software development for PLC (Programmable Logic Controller), ladder diagram. For this project, the Omron SYSMAC CJ I H-series Programmable Controllers is used with the programming language of CX-One programmer. In term of hardware development it consists of sensor selection and design for automated liquid level controller. This controller can be used to control the water level in tank especially in plant, we have to maintain the water level in water tank that used for emergency case from condensate and also can detect if the tank is leaking.

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