Design of PROFINET-based communication system for rice processing line

The communication system of rice processing production based on PROFINET real-time industrial Ethernet is designed to address the problems of difficulty in communication between equipment, low data transmission rate and poor data security caused by various types of communication protocols and different communication protocols between host equipment in the rice processing production line. The article expounds the application of PROFINET IO communication scheme in the control layer and field layer in the network topology of rice processing production line, and explains in detail the communication implementation method of applying PROFINET among equipment at each level; By building a PROFINET tree topology, the whole communication system is divided into three layers, which makes the communication structure clear and concise, and enhances the transmission capability of the overall network of the communication system and the availability and security of data in the local star network. The design aims to improve the rapidity, stability and security of information flow in the production control system and realize the unification of communication in the production communication system. It is well commissioned in the experimental environment and is intended to be applied in the actual production line.