Multi-master Profibus Dp Modelling and Worst Case Analysis-based Evaluation
نویسندگان
چکیده
This paper provides an analysis of the real-time behaviour of the multimaster Profibus DP network. The analysis is based on the evaluation of the worstcase message response time and the results obtained are compared with those present in literature, pointing out its capability to perform a more accurate evaluation of the performance of the Profibus network. Copyright © 2002 IFAC
منابع مشابه
Evaluating Worst Case Response Time in Mono and Multi-master Profibus Dp
Profibus networks are often used as the communication infrastructure for supporting distributed computer-controlled applications. Very often these applications impose strict real-time requirements. A widely used class of Profibus networks is the Profibus-DP profile, which may be implemented as mono or multi-master network. The aim of this paper is to analyse the real-time behaviour of both mono...
متن کاملDesigning Real-time Systems Based on Mono-master Profibus-dp Networks
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 o...
متن کاملAn experimental approach to estimate real-time characteristic of PROFINET IO versus PROFIBUS DP V2
This paper investigates performances of PROFINET IO Class 1, based on Ethernet@100Mbit/s, as a replacement of PROFIBUS DP V2, based on RS485 @ 12Mbit/s, for the realization of time-critical and isochronous systems. In this work, two test systems have been built. In the first one, the same experimental setup with the same application has been implemented using PROFINET and PROFIBUS networks and ...
متن کاملFrom Task Scheduling in Single Processor Environments to Message Scheduling in a PROFIBUS Fieldbus Network
In this paper we survey the most relevant results for the priority-based schedulability analysis of real-time tasks, both for the fixed and dynamic priority assignment schemes. We give emphasis to the worst-case response time analysis in non-preemptive contexts, which is fundamental for the communication schedulability analysis. We define an architecture to support priority-based scheduling of ...
متن کاملGuaranteeing real-time message deadlines in PROFIBUS networks
Profibus is based on a simplified Timed Token (TT) protocol, which is a well-proved solution for real-time communication systems. However, Profibus differences to the TT protocol prevent the application of the usual TT analysis. The main reason is that, conversely to the TT protocol, in the worst case, only one high-priority message is processed per token visit. The major contribution of this p...
متن کامل