Design of Communication System for Smart Factory Controlled by PLC based on IOT Technology

A smart factory is an extremely digitalized and associated fabrication capability that depend on smart industrialized. the model of the smart factory is considered as new idea for the 4th manufacturing revolution. The major features for smart factory are perceptibility, communication and independence. Industrial unit have extended trusted on robotics. The GLOVA G7-DR20U is used as a programmable logic controller PLC for control the action of smart factory while using the NodeMcu esp8266 as the IOT board for communication between owner and the factory using the smart phone programming. The software programming in the mobile phone was written in MQTT program. The program which written inside PLC by using ladder language for controlling the work of PLC. The prototype of smart factory was containing from two motor one for horizontal movement while the other for vertical movement. The scheme moreover has six sensors. Every motor attach with double sensors to bound its movement. The other two sensors are one for detect the exist of production while the other for count the production in the output side. When running the system, it is shown that the system is working very well and the response to the communication system via IOT is very good also receiving and sending the information to the mobile phone without errors.