Factory Communication Systems, 1997. Proceedings. 1997 IEEE International Workshop on

1-3 Oct. 1997

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  • Proceedings 1997 IEEE International Workshop on Factory Communication Systems. WFCS'97

    Publication Year: 1997
    Request permission for commercial reuse | PDF file iconPDF (691 KB)
    Freely Available from IEEE
  • On the performances of two popular fieldbuses

    Publication Year: 1997, Page(s):177 - 186
    Cited by:  Papers (14)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1057 KB)

    CAN and PROFIBUS-DP are two very popular fieldbuses, which can also be profitably also as control networks for distributed systems where a controller is connected to a number of simple devices. The use of CAN and PROFIBUS-DP as a communication support for event driven systems is considered and their performances are evaluated from this point of view. Only those aspects of these two networks which ... View full abstract»

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  • Integration of Time Petri Nets and TE-LOTOS in the design and evaluation of factory communication systems

    Publication Year: 1997, Page(s):71 - 80
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (798 KB)

    Time Petri Nets (TPN) and TE-LOTOS are timed extensions of two commonly used specification formalisms, that can be used in the design of real time concurrent and distributed systems. The paper reviews the differences between the two extended formal description techniques (FDTs), and shows how they can be used jointly in the design and evaluation of real time communication systems such as those use... View full abstract»

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  • Synchronous producer-consumer transactions for real-time distributed process control

    Publication Year: 1997, Page(s):27 - 36
    Cited by:  Papers (1)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (820 KB)

    Some activities of a modern Industrial Process Control & Measurement System feature critical time constraints which impose strict synchronization between the producers (e.g sensors or controllers) and consumers (controllers and actuators) of information. These devices communicate through particular common bus networks, called fieldbuses, using communication protocols developed to guarantee pre... View full abstract»

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  • VACANS-a tool for the validation of CAN-based applications

    Publication Year: 1997, Page(s):381 - 390
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    To verify a priori if time constraints of a distributed real time application will be respected, one needs to develop a model suitable for the verification. The paper presents a method for modeling CAN based applications. The models are well suited to performance evaluation for the verification of time constraints. This approach is supported by the tool VACANS, integrating on the one hand a simula... View full abstract»

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  • Implementation and performance evaluation of Profibus in the automation systems

    Publication Year: 1997, Page(s):187 - 192
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    Profibus interface S/W is implemented on a PC and embedded controller. In order to enable the Profibus interface S/W to handle many application tasks and communication services, two kinds of real time/multi tasking operating system, CTask and OS-9, are utilized. Using the Profibus interface S/W, the study develops an experimental model of an automation system, and evaluates the message delay in th... View full abstract»

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  • Development of an ORB for distributed manufacturing applications

    Publication Year: 1997, Page(s):255 - 260
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    The control of manufacturing processes requires the use of a communication infrastructure. Since the object oriented model is well adapted to the modelling of industrial processes, an ORB seems the logical choice for the communication layer. The paper presents an ORB developed for this purpose, based on DCE services View full abstract»

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  • A fault-tolerant communication architecture for real-time control systems

    Publication Year: 1997, Page(s):111 - 118
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (676 KB)

    Modern distributed computer control systems have to provide both highly reliable and hard real-time communication. To meet these requirements, a communication protocol adapted to the characteristics of data to be transferred has to be chosen. Concerning high reliability, additional measures have to be taken, since current protocols of the field-bus domain do not provide sufficient fault tolerance ... View full abstract»

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  • Low-layer quasi-agreed order broadcast over local bus

    Publication Year: 1997, Page(s):17 - 26
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (776 KB)

    Agreed order broadcast protocols are supposed to deliver messages in a group wide agreed total order. With large group sizes and a faulty communication environment (e.g., prone to reception misses), existing protocols can collapse due to imperfect synchronisation mechanisms. We propose and evaluate a MAC layer Jamming Protocol (JP), applicable in Ethernet type media, whereby a site jams an out of ... View full abstract»

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  • Experience with formal methods implementing the PROFIBUS FMS and DP protocol for industrial applications

    Publication Year: 1997, Page(s):277 - 286
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (956 KB)

    The paper presents our experience using the formal description technique Estelle for the protocol development cycle in the area of real time industrial communication systems. As a real world application, the PROFIBUS parts FMS and DP of the European fieldbus standard were completely implemented using formal models. These implementations are successfully used in industrial applications and embedded... View full abstract»

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  • CANopen: configure and device testing

    Publication Year: 1997, Page(s):373 - 380
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    The paper describes an European field bus communication standard developed during ESPRIT IV project 7302 and subsequently has become known as CANopen. CANopen Configure Device and Test (CDT) software has been developed by Newcastle University (UK) to facilitate the configuring and testing of CANopen devices. The CDT is further enhanced to perform conformance testing of I/O devices. To operate the ... View full abstract»

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  • Interaction between JavaTM and LonWorksR

    Publication Year: 1997, Page(s):335 - 340
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    The article presents a solution for remote control of Local Operating Networks with Java. The main objective is easy access to such networks via a Java enabled Web Browser. It is shown how to implement a Java applet that connects to a Java servlet which in turn activates a Win32 program that has access to LonWorks. The task of this applet is to provide the user with a comfortable and flexible inte... View full abstract»

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  • Integration of fieldbus systems into distributed object-oriented systems

    Publication Year: 1997, Page(s):247 - 253
    Cited by:  Papers (7)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    We describe an approach for integrating fieldbus systems into distributed object oriented systems. Integration of fieldbus systems into distributed object oriented systems means to treat the first one as an integral part of the last one. This integration has a methodological and a technical viewpoint. The first is related to the integration of models describing the application and its management, ... View full abstract»

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  • Using the planning scheduler in real-time fieldbuses: theoretical model for run-time overhead

    Publication Year: 1997, Page(s):103 - 109
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB)

    A typical approach to real-time fieldbus arbitration is the use of an off-line scheduler that generates a cyclic static table containing the allocation of bus-time-slots to the broadcasting of process control variables. The use of a planning scheduler is proposed instead. This scheduler compromises between the advantages and disadvantages of typical dynamic and static scheduling. Particularly, it ... View full abstract»

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  • Extensions to the pseudo-random class of energy-conserving access protocols

    Publication Year: 1997, Page(s):11 - 16
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (596 KB)

    A myriad of applications such as radio frequency identification (RFID) and smart card networks are emerging in which nodes are designed for extremely low cost, large scale applications such that the replacement of batteries is not feasible. Energy conservation therefore becomes a major constraint. Classical access protocols are either not energy conserving or lead to unacceptable delays. In a prev... View full abstract»

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  • Operating a robotized system through an Ethernet network

    Publication Year: 1997, Page(s):267 - 273
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (556 KB)

    At the moment, the common implementation of local area networks allows working in a total communicative environment. Taking advantage of this fact, and the facility to establish communication with a robotized system, one logical step is to join both to get maximum performance. The integration of a robotized system with a local area network is presented. This implementation considers a LAN-robot li... View full abstract»

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  • On the design and development of a gateway between MAP/MMS and PROFIBUS/FMS

    Publication Year: 1997, Page(s):349 - 353
    Cited by:  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (372 KB)

    The paper studies the performances that a gateway between the standard architectures MAP and PROFIBUS, defined for manufacturing environments, should offer and analyses the main aspects to be followed on its design. In particular, the cell level network SINEC H1 and the fieldbus SINEC L2 from Siemens manufacturer have been selected as a possible platform to implement a gateway between such archite... View full abstract»

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  • Controller area network: a formal case study

    Publication Year: 1997, Page(s):365 - 372
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    We present a formal analysis of a Controller Area Network (CAN) controller using the Z specification language. It is a step in the evaluation of functional and performance properties of CAN applications. We first show how an external view of CAN controller functionalities can be held in Z. Z is based on set theory and first order logic and is very expressive: a unique notation allows the specifica... View full abstract»

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  • A performance analysis of distributed hard-real time applications

    Publication Year: 1997, Page(s):167 - 176
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (716 KB)

    In distributed hard real-time applications there is a need for temporal analysis to evaluate and optimise a design with respect to the deadlines. The key method is the scheduling analysis of such applications, which means the schedulability not only of its tasks but of its messages too. The authors present a schedulability analysis which allows one to determine the timing parameters of messages an... View full abstract»

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  • Open control-the standard for PC-based automation technology

    Publication Year: 1997, Page(s):329 - 333
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    The industrial PC is playing an increasingly significant role in the field of control technology. These days, machine and system builders can compile their own automation solutions using hardware and software components from a variety of manufacturers. This opens up a whole new world of options for implementing manufacturer independent, cost effective automation solutions. In order to prevent poss... View full abstract»

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  • Response time guarantees for ATM-networked control systems

    Publication Year: 1997, Page(s):213 - 222
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (900 KB)

    We present the Response-Time Analysis (RTA) method for providing real time guarantees in asynchronous transfer mode (ATM) communication networks, and evaluates its suitability for use in hard real time factory type environments. RTA provides an analysis of the network traffic which can be used by an admission control mechanism to determine if the timing requirements of a new connection can be guar... View full abstract»

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  • Performance evaluation of an MMS/ATM implementation

    Publication Year: 1997, Page(s):239 - 244
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    Combined use of hardware and software in end systems is an important aspect in providing high performance communication subsystems to be used in real time distributed systems. We present a system for industrial automation and process control called MMS-ATM. Our architecture is based on the ATM (Asynchronous Transfer Mode) protocol implemented in hardware and the MMS (Manufacturing Message Specific... View full abstract»

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  • Modelling and analysis of the ARINC specification 629 CP MAC layer protocol

    Publication Year: 1997, Page(s):91 - 100
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (780 KB)

    The main concepts and the architecture of the 629 CP ARINC protocol are presented. The emphasis is put on the transmitter scheduler with its two main parts: the timers and the transmitter control. The protocol (which includes a lot of time constraints) is modelled with stochastic timed Petri nets. Its real time and fault tolerance properties are demonstrated View full abstract»

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  • Coverage simulator for wireless networks

    Publication Year: 1997, Page(s):149 - 156
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1024 KB)

    Wireless communication is a necessity for today's industrial networking. There are important reasons supporting this affirmation. In flexible manufacturing there are a large number of mobile devices which need wireless control such as mobile robots, portables, autonomous vehicles. Also, enterprises like the idea of having the possibility of a fast and cheap network reconfiguration that can be prov... View full abstract»

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  • Factory communication systems to meet multi-media requirements

    Publication Year: 1997, Page(s):317 - 320
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    Communication systems on the factory environment are evolving just as rapidly as in other application areas. There is a clear trend in computer communications to apply fast and high bandwidth networking methods and elements. Their spread in the office environment is very promising and straightforward, but their direct application in the manufacturing environment needs some prior investigation. How... View full abstract»

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