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CLC number: TP293

On-line Access: 2013-06-04

Received: 2012-12-19

Revision Accepted: 2013-04-23

Crosschecked: 2013-05-17

Cited: 3

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Journal of Zhejiang University SCIENCE C 2013 Vol.14 No.6 P.433-448


Improving the real-time performance of Ethernet for plant automation (EPA) based industrial networks

Author(s):  Li Lu, Dong-qin Feng, Jian Chu

Affiliation(s):  Institute of Cyber-Systems and Control, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   llu@iipc.zju.edu.cn, dqfeng@iipc.zju.edu.cn

Key Words:  Ethernet for plant automation (EPA), Fast real-time (FRT) system, Real-time Ethernet (RTE), Scheduling scheme

Li Lu, Dong-qin Feng, Jian Chu. Improving the real-time performance of Ethernet for plant automation (EPA) based industrial networks[J]. Journal of Zhejiang University Science C, 2013, 14(6): 433-448.

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author="Li Lu, Dong-qin Feng, Jian Chu",
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%T Improving the real-time performance of Ethernet for plant automation (EPA) based industrial networks
%A Li Lu
%A Dong-qin Feng
%A Jian Chu
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%P 433-448
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%D 2013
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.C1200363

T1 - Improving the real-time performance of Ethernet for plant automation (EPA) based industrial networks
A1 - Li Lu
A1 - Dong-qin Feng
A1 - Jian Chu
J0 - Journal of Zhejiang University Science C
VL - 14
IS - 6
SP - 433
EP - 448
%@ 1869-1951
Y1 - 2013
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.C1200363

real-time Ethernet (RTE) control systems with critical real-time requirements are called fast real-time (FRT) systems. To improve the real-time performance of ethernet for plant automation (EPA), we propose an EPA-FRT scheme. The minimum macrocycle of EPA networks is reduced by redefining the EPA network frame format, and the synchronization process is modified to acquire higher accuracy. A multi-segmented topology with a scheduling scheme is introduced to increase effective bandwidth utilization and reduce protocol overheads, and thus to shorten the communication cycle significantly. Performance analysis and practical tests on a prototype system show the effectiveness of the proposed scheme, which achieves the best performance at small periodic payload in large scale systems.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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