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Developments in real‐time control with EtherNet/IP

Developments in real‐time control with EtherNet/IP Purpose – Ethernet continues to evolve as a viable fieldbus technology for industrial automation. This paper seeks to discuss the development of the Common Industrial Protocol (CIP) for Ethernet and standards with particular reference to time synchronisation, real time motion control and safety. Design/methodology/approach – The CIP is introduced, with an overview of four network adaptations: CompoNet, DeviceNet, ControlNet, and EtherNet/IP. Developments in the EtherNet/IP implementation are discussed, along with key features. These include CIP Safety to meet the requirements for safety‐related control, CIP Sync for time synchronisation across CIP networks and CIP motion for real‐time closed loop motion control. Findings – Standard, unmodified Ethernet will support time synchronisation, real time motion control and safety‐related applications with the CIP adaptation EtherNet/IP. The CIP enables complete integration of control with information, multiple CIP networks and internet technologies. CIP provides seamless communication from the plant floor throughout the enterprise, with a scalable and coherent architecture, incorporating functionality, such as safety, time synchronisation and motion control, hitherto only available with specialised or incompatible networks. Practical implications – The implementations of CIP Sync, CIP Motion and CIP Safety and the corresponding standards provide functionality and flexibility not available from disparate specialist networks. The ability to fully integrate internet technologies and safety, synchronisation, motion and safety together is a distinguishing feature. Industrial Ethernet technologies vary in the ability to integrate to the same level of functionality and offer similar flexibility. Originality/value – The development of CIP technology and the use of open standards are described. The opportunity to use the combination of an established automation protocol and standard, unmodified Ethernet provides potential cost benefits, flexibility, and innovative solutions, whilst providing integration, performance and cost advantages. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Assembly Automation Emerald Publishing

Developments in real‐time control with EtherNet/IP

R.S.H. Piggin
Assembly Automation , Volume 27 (2): 9 – Apr 24, 2007
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9 pages

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Publisher
Emerald Publishing
Copyright
Copyright © 2007 Emerald Group Publishing Limited. All rights reserved.
ISSN
0144-5154
DOI
10.1108/01445150710733333
Publisher site
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Abstract

Purpose – Ethernet continues to evolve as a viable fieldbus technology for industrial automation. This paper seeks to discuss the development of the Common Industrial Protocol (CIP) for Ethernet and standards with particular reference to time synchronisation, real time motion control and safety. Design/methodology/approach – The CIP is introduced, with an overview of four network adaptations: CompoNet, DeviceNet, ControlNet, and EtherNet/IP. Developments in the EtherNet/IP implementation are discussed, along with key features. These include CIP Safety to meet the requirements for safety‐related control, CIP Sync for time synchronisation across CIP networks and CIP motion for real‐time closed loop motion control. Findings – Standard, unmodified Ethernet will support time synchronisation, real time motion control and safety‐related applications with the CIP adaptation EtherNet/IP. The CIP enables complete integration of control with information, multiple CIP networks and internet technologies. CIP provides seamless communication from the plant floor throughout the enterprise, with a scalable and coherent architecture, incorporating functionality, such as safety, time synchronisation and motion control, hitherto only available with specialised or incompatible networks. Practical implications – The implementations of CIP Sync, CIP Motion and CIP Safety and the corresponding standards provide functionality and flexibility not available from disparate specialist networks. The ability to fully integrate internet technologies and safety, synchronisation, motion and safety together is a distinguishing feature. Industrial Ethernet technologies vary in the ability to integrate to the same level of functionality and offer similar flexibility. Originality/value – The development of CIP technology and the use of open standards are described. The opportunity to use the combination of an established automation protocol and standard, unmodified Ethernet provides potential cost benefits, flexibility, and innovative solutions, whilst providing integration, performance and cost advantages.

Journal

Assembly Automation – Emerald Publishing

Published: Apr 24, 2007

Keywords: Robotics; Functional management; Motion; Network operating systems

References

  • CIP Motion, Motion Control for CIP
    Chaffee, M.; Hirschinger, B.
  • Industrial communication subsystem based on ISO 11898 (CAN) for controller – devices interfaces – Part 2. DeviceNet
    EN 50325‐2
  • CIP Sync, time synchronization for CIP
    Harris, K.; Kucharski, S.
  • Functional safety of electrical/electronic/programmable electronic safety‐related systems
    IEC 61508
  • Digital data communications for measurement and control – Part 2. Additional profiles for ISO/IEC 8802‐3 based communication networks in real‐time applications
    IEC 61784‐2
  • IEEE standards for local and metropolitan area networks – virtual bridged local area networks
    IEEE 802.1Q
  • ISO/IEC 8802‐3:2000 IEEE standards for information technology – local and metropolitan area networks – Part 3. Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specification
    IEEE 802.3
  • IEEE standards for a precision clock synchronization for networked measurement and control systems
    IEEE 1588
  • Road vehicles – interchange of digital information – controller area network (CAN) for high‐speed communication
    ISO 11898
  • ISO/IEC standard – information technology – open systems interconnection – basic reference model
    ISO/IEC 7498
  • What's happening with machine safety standards and networks?
    Piggin, R.
  • The Common Industrial Protocol (CIP) and the Family of CIP Networks
    Schiffer, V.
  • Fieldbus technology in industrial automation
    Thomesse, J.P.
  • CIP Safety on EtherNet/IP
    Vasko, D.A.; Kucharski, P.G.