There is a close relationship between Profinet IO and Industrial Ethernet. In a nutshell, Profinet IO is an application protocol based on Industrial Ethernet technology for real-time communication in the field of industrial automation.
Industrial Ethernet is an Ethernet technology used in the field of industrial control, which is compatible with ordinary Ethernet technology, but has specific requirements for specific products and applications. It is especially suitable for industrial production control occasions that have extremely high requirements for real-time, certainty and reliability of data.
Profinet IO is a new generation of automation bus standards based on Industrial Ethernet technology. It allows simultaneous isochronous fieldbus communication and standard IT communication (e.g. TCP IP) over a single cable. This real-time communication takes place on a single cable and is used to transmit user process data as well as diagnostic data. In fact, PROFINET uses Ethernet as the communication medium to connect conventional PROFIBUS systems with new intelligent field devices, so that any development based on Ethernet can be directly implemented in PROFINET networks.
Therefore, it can be said that PROFINET IO is a specific implementation and application of industrial Ethernet technology in the field of industrial automation, which makes full use of the high-speed, stable and reliable characteristics of industrial Ethernet, and combines the special requirements of industrial automation for real-time and reliability, so as to provide an efficient and flexible communication solution.