Implementation of Programmable Logic Controller with Wireless Bluetooth Connectivity

Abstract

Programmable Logic Controller is a necessary part of today’s industry. The PLC is a microcontrollerbased, general-purpose electronic device to control the operation of a machine or process. PLCs are not programmed by the device manufacturer but by the machine builder or the end user[1]. The PLC is a robust industrial computer which accepts both Inputs, digital and analogue data from the switches, sensors etc. and controls the output to drive devices such as motors, pneumatic devices and status indicators. For high speed connectivity with PLC, it has got an Ethernet connectivity module[3]. This paper describes the design methodology of the Programmable Logic Controller with the wireless connectivity over classic Bluetooth media. This technique will allow user to configure, control & monitor the remote near field IO devices on wireless Bluetooth connectivity. The main purpose of using the Bluetooth technology is to replace cable connections with comparable communication speed especially for hazardous industrial sector. This paper presents the methodology which will describe the integral parts & operation of the PLC with wireless Bluetooth connectivity [2,6] .