Method for implementing mutual communication of slave stations of high-speed field bus

Abstract

The invention provides a method for implementing mutual communication of slave stations of a high-speed field bus. The method comprises the following steps of: (1) detecting whether a communication data channel of a slave station in the target direction is busy or not by the slave station; if so, receiving data transmitted on the communication data channel, and processing the data, otherwise, performing the next step; (2) judging whether the slave station transmits data thereof or not, if so, performing the next step, otherwise, entering a waiting state; (3) segmenting the data to be transmitted by the slave station, and transmitting the data to the next slave station; and (4) judging whether the data of the slave station is transmitted or not, if so, entering the waiting state, otherwise, continuously transmitting the data until the data is completely transmitted. The invention also provides a mutual communication system for the slave stations of the high-speed field bus for implementing the method. The invention can support direct mutual communication among the slave stations, and can greatly improve the data switch speed among the slave stations.

Description

technical field [0001] The invention belongs to the technical field of field bus, and particularly relates to a method for realizing mutual communication of high-speed field bus slave stations and a system for realizing mutual communication of high-speed field bus slave stations of the method. Background technique [0002] High-speed field bus refers to the digital, serial, multipoint communication data bus between the field devices installed in the manufacturing or process area and the automatic devices in the control room. It is an all-digital, two-way, The multi-station communication system mainly solves the digital communication between intelligent instruments, controllers, actuators and other field devices in the industrial field, as well as the information transmission between these field control devices and advanced control systems. According to the processing requirements of industrial manufacturing equipment, high-speed field bus technology and data acquisition tech...

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