Real-time fieldbus communications using Profibus networks

Tovar, Eduardo; Vasques, Francisco

doi:10.1109/41.808018

Cited by 174 publications

(64 citation statements)

References 12 publications

(12 reference statements)

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“…The problem of evaluating the worst-case response time (WCRT) for high priority PROFIBUS transactions in a SLR scenario has been addressed in [3][4][5], and strictly applies to the case of intra-domain transactions. To evaluate the WCRT for inter-domain transactions, analysis can be adapted from the P-NET networks case [10].…”

Section: Wcrt For Inter-domain Transactionsmentioning

confidence: 99%

“…In [3] the authors suggest two different approaches to guarantee the real-time behaviour of the synchronous traffic in the PROFIBUS networks. In one of the approaches -the Unconstrained Low Priority Traffic Profile, the real-time requirements for the synchronous traffic are satisfied, even when only one synchronous message is transmitted per token visit, independently of the asynchronous traffic load.…”

Section: Worst-case Response Time Analysis (Wcrt)mentioning

confidence: 99%

“…The research works [3][4][5] on the timing behaviour of PROFIBUS networks have proved the capabilities of this fieldbus standard to support distributed computercontrolled systems with stringent real-time requirements. More recently, there is the eagerness of extending the capabilities of PROFIBUS to cover functionalities not previously considered in such type of networks: industrial wireless communications and ability to support industrial multimedia traffic.…”

Section: Introductionmentioning

confidence: 99%

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Hybrid wired/wireless PROFIBUS networks supported by bridges/routers

Ferreira¹,

Alves²,

Tovar³

4th IEEE International Workshop on Factory Communication Systems

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Section: Wcrt For Inter-domain Transactionsmentioning

confidence: 99%

Section: Worst-case Response Time Analysis (Wcrt)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hybrid wired/wireless PROFIBUS networks supported by bridges/routers

Ferreira¹,

Alves²,

Tovar³

4th IEEE International Workshop on Factory Communication Systems

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“…Nevertheless, the time guidelines for building this schedule are based on performability characteristics of the filedbus system, excluding any fault scenarios [5].…”

Section: Related Workmentioning

confidence: 99%

A framework for dependability evaluation of PROFIBUS networks

Carvalho

Portugal²,

Carvalho³

2003 IEEE International Symposium on Industrial Electronics ( Cat. No.03TH8692)

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Abstract-Fieldbus networks have been assuming a high acceptance in the industrial environment, replacing the old centralized control architectures. Due to time critical nature of the tasks involved in these environments, the fulfillment of dependability attributes is usually required. Therefore the dependability is an important parameter on system design, which should be evaluated.Several factors can affect system dependability. The environmental ones are the most common and due to the particularity of the industrial environment this susceptibility is increased. In this paper it is proposed a framework based on fault injection techniques, supported by a hardware platform which emulates a fault set, representative of industrial environment scenarios, intending to disturb data communications on a PROFIBUS network. From these fault injection experiments, relevant data is gathered and a further analysis is carried out to evaluate dependability attributes.

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“…The research works on the timing behaviour of PROFIBUS networks [3][4][5] have proved the capabilities of this protocol to support distributed computer-controlled systems with stringent real-time requirements. More recently, there has been an eagerness for extending the capabilities of PROFIBUS to cover new functionalities like: industrial wireless communications [6,7] and the ability to support industrial multimedia traffic [9].…”

mentioning

confidence: 99%