The present invention discloses an industrial data
bus system, and comprises an industrial control center, a plurality of industrial field devices, and a plurality of industrial data
bus devices. Each industrial data
bus device has the function of elastic grouped ring, and comprises a plurality of business interfaces and two
physical layer interfaces; wherein, the two
physical layer interfaces of each industrial data bus device and the
physical layer interfaces of other industrial data bus devices are respectively connected to form an elastic grouped
ring network through two bidirectional buses; the industrial control center and the industrial field devices are connected with the business interfaces of the industrial data bus devices and are connected in the elastic grouped
ring network through the physical layer interfaces. Simultaneously, the present invention also discloses a realization method of the industrial data bus device and the industrial data bus
system. Therefore, the industrial data bus
system satisfies the requirements of high
interference resistance, reliability, real-time and multi-service performances of the industrial data communication, and improves the
processing performance of the industrial data communication.