Designing Real-Time Systems Based on Mono Master Profibus-DP Networks
Ref: HURRAY-TR-0013 Publication Date: 29, Nov, 2000
Designing Real-Time Systems Based on Mono Master Profibus-DP Networks
Ref: HURRAY-TR-0013 Publication Date: 29, Nov, 2000Abstract:
Profibus networks are widely used as the communication
infrastructure for supporting distributed computer-controlled
applications. Most of the times, these applications impose strict
real-time requirements. Profibus-DP has gradually become the preferred
Profibus application profile. It is usually implemented as a mono-master
Profibus network, and is optimised for speed and efficiency. The aim of
this paper is to analyse the real-time behaviour of this class of
Profibus networks. Importantly, we develop a new methodology for
evaluating the worst-case message response time in systems where
high-priority and cyclic low-priority Profibus traffic coexist. The
proposed analysis constitutes a powerful tool to guarantee prior to
runtime the real-time behaviour of a distributed computer-controlled
system based on a Profibus network, where the real-time traffic is
supported either by high-priority or by cyclic poll Profibus messages.
Salvatore Monforte
Mário Alves
Eduardo TovarDocument:
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Download16th IFAC Workshop on Distributed Computer Control Systems (DCCS'2000), pp 36-43.
Sydney, Australia.
Record Date: 1, Jul, 2000