Enhanced Security Hybrid Communication for Complex Industrial Embedded System

Ruchi Arya, Roshan Jain

With the fast pace of industrial & concentration of population in urban area unit & sleep size in load prices industries are locating plant to remote sites. Also as the technology is getting advanced automation data logging & remote monitoring have become an indispensible tool for industrial automation & are heavily dependent on connectivity options available. Also there are a variety of devices which are to be monitored & controlled remotely via a single connection along with security. This work presents a unique method of encrypting data from various devices such as plc’s, DCS embedded controller & data loggers & multiplexing it on a single TDM (Time Division Multiplex) channel. ESP8266 wifi module is employed at the communication and of communication controller PLC/DCS to connect to IOT cloud via wifi this operation has been demonstrated using the thingspeak API. Encryption & multiplexing code has been demonstrated using MATLAB while IOT/cloud communication using ESP8266 demonstrated using ladder logic. Thus a comprehensive industrial communication system for remote site management has been presented.