Volume 37 Issue 8
Aug.  2011
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Xia Jiqiang, Liang Chaozhong, Geng Chunming, et al. Key technology on PROFIBUS-DP master gateway[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(8): 990-996. (in Chinese)
Citation: Xia Jiqiang, Liang Chaozhong, Geng Chunming, et al. Key technology on PROFIBUS-DP master gateway[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(8): 990-996. (in Chinese)

Key technology on PROFIBUS-DP master gateway

  • Received Date: 13 Apr 2011
  • Publish Date: 30 Aug 2011
  • To solve the problem that distribute control system is difficult to integrate standard PROFIBUS-DP slaves, gateway solution was proposed. After comparing several existing gateway solutions, soft core implementation was adopted. Hardware platform which was compatible with two solutions and supported hot plug operation was designed. Modular thought was applied to do software architecture designation. State-machine method was used to implement "PROFIBUS-DP communication" sub function. Solution reliability on both hardware and software was traversed from the view point of chip selection, fault-precaution, fault-rectify and failure-resume. Proper schedule strategy to enhance system-s real-time performance was expatiated according to hardware-s characteristics. Slave-s configuration method which is a difficult point when it comes to self-designed host was designed to support add and delete slave as well as edit slave configuration dynamically when system is running. Theoretical analysis and experimental test were done to identify gateway-s capability parameters. The gateway can support up to 3 Mbit/s communication baud rate. Experimental results show that system performance is excellent and stabilized.

     

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