The Calculation of TTR in PROFIBUS System

Li Ping Zhen; Shao Wei Si; Huan Qing Xie

doi:10.4028/www.scientific.net/AMR.482-484.2183

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 482-484The Calculation of TTR in PROFIBUS System

The Calculation of TTR in PROFIBUS System

Abstract:

In PROFIBUS system, we analyzed the time behavior of data exchange and token-passing, and give the TTR selection method, when each master station holding enough token time. And then we discussed the random characteristics of networks and FDL, give the formula of random behavior to calculate time, and get the TTR and the revised value of TTR in PROFIBUS system which has FDL and MS1 communication. Finally, further discussed the case of transmission errors, analyzed the impact of transmission errors to TTR and the real-time of system, and give the TTR and the revised value in this situation.

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Periodical:

Advanced Materials Research (Volumes 482-484)

Pages:

2183-2187

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.482-484.2183

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Online since:

February 2012

Authors:

Li Ping Zhen, Shao Wei Si, Huan Qing Xie

Keywords:

Data Exchange, FDL, PROFIBUS, Token-Passing, TTR

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References

[1] Tovar, E., Vasques, F.: "Guaranteeing Real-Time Message Deadlines in Profibus Networks", Proceedings of the 10th Euromicro Workshop on Real-time Systems, Berlin,Germany, IEEE Press, 1998, pp.79-86.

DOI: 10.1109/emwrts.1998.685071

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DOI: 10.1016/s0140-3664(99)00123-1

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