Industry data bus system, industry data bus equipment and implementing method thereof

Abstract

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.

Description

technical field [0001] The invention relates to the field of industrial data communication, in particular to an industrial data bus system, an industrial data bus device and an implementation method thereof. Background technique [0002] As we all know, the current industrial data communication generally adopts the field bus mode or industrial Ethernet. Fieldbus is a standard, open, two-way multi-station digital communication system used between process control field instruments and the control room, which can realize two-way serial multi-node digital communication between computerized measuring devices. There are many types of fieldbus, including Profibus, ModBus, CAN and other fieldbuses. Due to the non-uniform technical specifications and standards of fieldbuses, the connection between various fieldbuses is inconvenient, and the communication speed is relatively slow. Industrial Ethernet refers to the application of Ethernet technology in industrial environments. The in...

AI Technical Summary

Problems solved by technology

However, industrial Ethernet is based on Ethernet technology. Like commercial Ethernet, there are also problems of data packet competition and data packet congestion, and there is no self-healing protection ring function. Therefore, the reliability of industrial data communication is poor.

At the same time, industrial Ethernet has no business level classification, and its real-time performance is poor, so it cannot well meet the requirements of industrial data communication.

[0003] To sum up, it can be seen that the actual use of existing industrial data communication obviously has inconvenience and defects, so it is necessary to improve it

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