Design and Implementation of PLC System Control and Monitoring of Induction Motor

Abstract

Controlling appliances from our PC is quite interesting and convenient. In this project the simple circuit along with the software is used to interface the PC with the Electronic circuit. The Gates (And, Or, not etc) and the Input variables are set in the system. The corresponding signal is transmitted through parallel port and the PLC kit receives the signal. The High or Low Input are set in the PLC kit by using switches. The control operations are done in the Microcontroller using PLC (Ladder Logic) Programming. The output is derived in the PLC kit. By using the output one can control any machine or motor. Heat sensors are connected at the main parts of the motor. According to the level of heating, the sensors send signal to the PLC kit. According to the variables set in the PLC kit, the kit controls the operation of the motor. The microcontroller sends signal (status of the motor) to the microcontroller unit. The microcontroller unit analyses the signal and sends corresponding signal to the LCD display. This project uses Visual Basic as designing language and Assembly language as Microcontroller language. PIC16F73 is used as Microcontroller.

Existing System

Proposed System

Architecture

BLOCK DIAGRAM