Industrial wireless network access industrial Ethernet, multi-protocol gateway of field bus and protocol conversion method

An industrial wireless network and field bus technology, applied in the direction of bus network, network connection, data exchange through path configuration, etc., can solve problems that have not been involved
CN101425948AActive Publication Date: 2009-05-06SHANGHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI UNIV
Publication Date
2009-05-06

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Abstract

The invention relates to a multi-protocol gateway and protocol conversion method accessing industrial radio network into MODBUS / TCP industrial Ethernet and PROFIBUS-DP field bus based on IEEE802.15.4a. The multi-protocol gateway comprises microprocessor, MODBUS / TCP main station, IEEE802.15.4a radio main station, PROFIBUS-DP slave station, extent SDRAM memory and FLASH memory, RJ45 network port, 486 physical layer interface, USB interface. The circuit connection style is that the microprocessor is positioned at center; the DM9161EP Ethernet physical layer interface chip extends via MDIO interface; the PROFIBUS-DP protocol chip SPC3 connects via internal bus, the NA1TR8 radio protocol chip connects the circuit via SPI bus; the USB interface extends from the circuit. The protocol conversion method of multi-protocol gateway is controlled by microprocessor for implementing protocol conversion among three networks. The invention implements wired / wireless Heterogenous control network gateway fitting the demand for industrial real-time and open data communication considering the status of wired spot bus / industrial Ethernet for the present and combining the wireless network frontier technology.
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Description

technical field

[0001] The invention relates to a multi-protocol gateway and a protocol conversion method that introduces an industrial wireless network based on IEEE802.15.4a into MODBUS / TCP industrial Ethernet and PROFIBUS-DP field bus, involves conversion of various communication protocols, and belongs to field bus control technology field. technical background

[0002] The field bus is the underlying communication network used in the production and manufacturing sites. It realizes the bidirectional serial multi-node digital communication between computerized on-site measurement and control instruments or equipment, and has the characteristics of real-time and high stability. Since the International Electrotechnical Commission (IEC) announced and passed the IEC61158 fieldbus standard in 2000, there are now more than ten fieldbus standards.

[0003] Ethernet is a local area network commonly used in the commercial field. Combining with the TCP / IP protocol, it forms the bas...

Claims

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