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

Active Publication Date: 2009-05-06
SHANGHAI UNIV
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Problems solved by technology

However, in the published patent literature, there is no reference to the method and device for introdu

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

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Embodiment Construction

[0058] A preferred embodiment of the present invention is described below in conjunction with accompanying drawing:

[0059] see figure 1 , this multi-protocol gateway based on IEEE802.15.4a industrial wireless network access to MODBUS / TCP industrial Ethernet and PROFIBUS-DP field bus, including microprocessor①, MODBUS / TCP master station, IEEE802.15.4a wireless master station, PROFIBUS-DP slave station, external SDRAM memory ⑦ and FLASH memory ⑧, RJ45 network port ④, 485 physical layer interface ⑥, USB interface ;The connection mode of the circuit is centered on the microprocessor ①, and the DM9161EP Ethernet physical layer interface chip ③ is expanded through the MDIO interface ⑩, connected to the PROFIBUS-DP protocol chip SPC35 through the internal bus ⑨, and through the SPI bus Connect the NA1TR8 wireless protocol chip ②, expand the USB interface .

[0060] Adopt AT91RM9200 microprocessor ① as the core control chip of the system. Microprocessor ① via SPI bus Connec...

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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.

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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Application Information

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IPC IPC(8): H04L12/28H04L12/66H04L29/06H04L12/40
Inventor 费敏锐王海宽王佳承黄丹青马成喜付敬奇
Owner SHANGHAI UNIV
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