Using the Power Distribution Network (PDN) concurrently as a data bus with Power Line Communications (PLC) technology provides an interesting solution for reducing the complexity, weight and volume of electrical syste...
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ISBN:
(纸本)9781467317009
Using the Power Distribution Network (PDN) concurrently as a data bus with Power Line Communications (PLC) technology provides an interesting solution for reducing the complexity, weight and volume of electrical systems in commercial aircraft. The European Union project TAUPE has recently completed an investigation on the use of PLC in commercial aircraft. A Technology Readiness Level (TRL) of four was reached and significant weight and complexity savings were demonstrated. Extensive functional and performance tests have been performed for two cabin reference applications in a representative demonstrator. The measurements were performed with commercial off-the-shelf (COTS) PLC equipment based on a state-of-the-art industry standard. A detailed analysis of the results showed a number of deficiencies in applying COTS technology, which has been developed primarily for consumer in-home multimedia distribution, to avionics systems. This paper will provide an analysis of the deficiencies identified during testing as well as present a set of guidelines to aid the way forward for further development towards reaching a higher TRL with PLC which has become well established in the consumer market, but has yet to reach its full potential for avionics applications.
作者：
Riera, B.Annebicque, D.Gellot, F.Philippot, A.Benlorhfar, R.
UFR des Sciences Exactes et Naturelles Université de Reims Champagne-Ardenne Moulin de la Housse BP 1039 51687 Reims Cedex 2 France
IUT de Troyes 9 rue de Québec 10026 Troyes Cedex France
This paper presents an original approach of safe control synthesis of manufacturing systems. This approach is based on the use of a logic filter (placed at the end of PLC (programmablelogic Controller)) robust to con...
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In this paper an approach to support the development process of closed-loop control software for programmable logic controllers (PLC) is shown. To enhance the development process, a fast and reliable data transfer bet...
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ISBN:
(纸本)9781467324212
In this paper an approach to support the development process of closed-loop control software for programmable logic controllers (PLC) is shown. To enhance the development process, a fast and reliable data transfer between different tools and models used during different design phases is realized by model transformation. A core model created using the Systems Modeling Language (SysML) and a corresponding model editor based on the Unified Modeling Language (UML) in combination with a newly realized model transformation from the SysML parametric diagram to the Simulink block diagram is used to integrate the information from different engineering tools and models involved during automation engineering design phases. Hence, a consistent process for the development of closed-loop control software is realized.
Skinny trace compensation is a simple yet effective technique for overcoming capacitive impedance discontinuities on high speed channels. This paper provides a comprehensive system-level modeling and analysis methodol...
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This paper presents a novel pipelining technique designed specifically to improve the execution of cyclic control systems and applications in terms of scan cycle time reduction and/or execution of additional workload....
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Software development for PLC based systems is changing. In addition to the traditional, procedural programming languages for programmable logic controllers (PLCs) from the IEC 61131-3, increasingly object-oriented ele...
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As the compact programmablelogic Controller (PLC) has weak capacity of analog processing, in this chapter, we designed a programmablelogic controller analog extension module which can meet the requirements of a smal...
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programmablelogic Controller(PLC) is applied to a reactor protection system and an engineered safety feature-component control system as major safety system components in nuclear power plants. This paper describes th...
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ISBN:
(纸本)9781627480154
programmablelogic Controller(PLC) is applied to a reactor protection system and an engineered safety feature-component control system as major safety system components in nuclear power plants. This paper describes the safety-critical software qualification experience including the pCOS(posCon Operating System) kernel and system tasks related to a safety-grade PLC which corresponds to the software verification and validation, software safety analysis, software quality assurance and software configuration management etc. Major qualification activities for the design output of the PLC development software are a technical evaluation, licensing suitability evaluation, inspection and traceability analysis, formal verification, software safety analysis, software quality assurance and its software configuration management. First, the technology evaluation performs a technical review which was based on engineering decision-making by verifiers. Second, the licensing suitability evaluation was performed according to the Code & Standard criteria by analyzing the designed outputs based on the functional characteristics and process characteristics defined in the verification and validation guidelines. Third, the inspection and traceability analysis used the System Inspection Support-Requirement Traceability(SIS-RT) of an in-house tool developed by Korea Nuclear Instrumentation and Control System(KNICS) Project. The inspection covers the correctness, consistency, completeness, properties of the inputs and outputs, behavioral entities, interfaces, etc with a three-folded checklist topology. Fourth, a formal verification was performed for the Statechart based on the Software Requirement Specification (SRS) and the Software Design Specification (SDS) by a Graphical Back Animation(GBA) and a simulation. Fifth, the software safety analysis used the HAZard OPerability(HAZOP) method and it has analyzed the Failure Mode Effect Analysis(FMEA). Finally, a software configuration management
作者：
Riera, B.Philippot, A.Annebicque, D.Gellot, F.
UFR des Sciences Exactes et Naturelles Université de Reims Champagne-Ardenne Moulin de la Housse BP 1039 51687 Reims Cedex 2 France
IUT de Troyes 9 rue de Québec 10026 Troyes Cedex France
This paper presents an original approach of safe control synthesis of manufacturing systems. This is an extension of the work that CReSTIC has led for several years on the definition and design of a logic filter (plac...
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