Vol. 1, Issue 8, Part E (2015)

Abstract
Programmable LogicrnController is a necessary part of today’s industry. The PLC is arnmicrocontroller-based, general-purpose electronic device to control thernoperation of a machine or process. PLCs are not programmed by the devicernmanufacturer but by the machine builder or the end user^[1]. The PLCrnis a robust industrial computer which accepts both Inputs, digital and analoguerndata from the switches, sensors etc. and controls the output to drive devicesrnsuch as motors, pneumatic devices and status indicators. For high speedrnconnectivity with PLC, it has got an Ethernet connectivity module^[3].rnThis paper describes the design methodology of the Programmable LogicrnController with the wireless connectivity over classic Bluetooth media. Thisrntechnique will allow user to configure, control & monitor the remote nearrnfield IO devices on wireless Bluetooth connectivity. The main purpose of usingrnthe Bluetooth technology is to replace cable connections with comparablerncommunication speed especially for hazardous industrial sector. This paperrnpresents the methodology which will describe the integral parts & operationrnof the PLC with wireless Bluetooth connectivity^[2,6].