The invention provides a D-
BUS high-speed
bus technology based on a
ring type Ethernet and an auxiliary network, which belongs to the technical field of industrial control. The D-
BUS high-speed
bus technology is characterized in that a D-
BUS (Dual-BUS) high-speed
bus network consists of a high-speed
ring type Ethernet ReBUS and an auxiliary network MB+, wherein the ReBUS bus utilizes the
physical layer specification of
Ethernet IEEE802.3, a main
station is connected with slave stations in series to form a
ring type topological structure, the wiring mode for the main
station and the slave stations is same with that of the slave stations with the slave stations, a receiving terminal of each equipment is connected with a transmitting terminal of the former equipment, the transmitting terminal of the equipment is connected with a receiving end of a latter terminal, the receiving terminals are sequentially connected with the transmitting terminals in the mode to form a ring type
network structure, I / O equipment are connected with the slave stations through RS485 serial ports and serve as the expansion I / O of the slave stations, and failure detection comprising
failure diagnosis, failure location and communication redundancy is realized by the MB+ bus. The invention has the beneficial effects that the ring type wiring cost is low, the
data exchange of all network nodes is realized by one message, the communication efficiency is high, a failure detection and failure
recovery mechanism is provided, and the reliability is high.