PROFINET - Manchester Metropolitan University .PROFINET Technology and Application, Version April

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Transcript of PROFINET - Manchester Metropolitan University .PROFINET Technology and Application, Version April

  • Open Solutions for the World of Automation

    Tech

    nolo

    gy a

    nd A

    pplic

    atio

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    PROFINETS y s t e m D e s c r i p t i o n

  • Introduction

    The ever-shorter innovation cycles for new products makes the continuous evolution of automation technology necessary. The use of fieldbus tech-nology has been a significant innova-tion in the past few years. It enabled the migration of centralized automati-on systems to distributed automation systems. PROFIBUS, as a global mar-ket leader, has set the benchmarks for 20 years.

    In todays automation technology, mo-reover, Ethernet and information tech-nology (IT) is increasingly calling the shots with established standards like TCP/IP and XML. The integration of information technology into automa-tion is opening up opportunities for significantly improved communication between automation systems, far-ran-ging configurations and diagnostics, and network-wide service functions. These functions have been integral components of PROFINET from the outset.

    PROFINET is the innovative open standard for Industrial Ethernet. PROFINET satisfies all require-ments of automation technology. PROFINET enables solutions to be developed for factory automation, process automation, safety ap-plications, and the entire range of drive technology up to and inclu-ding isochronous motion control applications.

    Besides the real-time capability and the use of IT technology, protection of investment also plays an important role in PROFINET. PROFINET allows existing fieldbus systems such as PROFIBUS DP, PROFIBUS PA, AS-Interface, INTERBUS, and DeviceNet to be integrated without changes to existing field devices. That means that the investments of plant operators, machine and plant manufacturers, and device manufacturers are all pro-tected.

    The use of open standards, simple handling, and the integration of exi-sting system components has driven the definition of PROFINET from the beginning. PROFINET is standardized in IEC 61158 and IEC 61784.

    The ongoing further development of PROFINET offers users a long-term view for the implementation of their automation tasks.

    For plant and machine manufacturers, the use of PROFINET minimizes the costs for installation, engineering, and commissioning. For plant operators, PROFINET offers ease of plant expan-sion and high system availability due to autonomously running plant units and low maintenance requirements.

    The mandatory certification for PRO-FINET devices ensures a high quality standard.

  • 2 PROFINET Technology and Application, Version April 2009

    Contents

    1. PROFINET at a Glance ...................................... 31.1 PROFINET IO Highlights ...................................... 31.2 Standardization ..................................................... 41.3 Scope of application of PROFINET ...................... 41.4 Perspectives on PROFINET ................................. 41.5 Component model (PROFINET CBA) .................. 51.6 Distributed I/O (PROFINET IO) ............................ 51.7 PROFINET and real-time ...................................... 51.8 PROFINET and isochronous mode ...................... 51.9 Device classes of PROFINET IO .......................... 51.10 Addressing in PROFINET IO ................................ 6

    2. PROFINET IO Basics .......................................... 72.1 Device model ........................................................ 72.2 Application process identifier (API) ....................... 82.3 Communication in PROFINET IO ......................... 82.4 Principles of real-time communication in PROFINET IO ................................................... 92.5 Real-time classes in PROFINET IO ...................... 92.6 Cyclic data traffic ................................................. 102.7 Acyclic data traffic ................................................ 102.8 Multicast Communication Relation (MCR) ........... 102.9 Event-oriented data traffic.................................... 10

    3. Diagnostics Concept of PROFINET IO ............. 113.1 Overview of the structure of an alarm message .. 113.2 Diagnostics in PROFINET ................................... 113.3 Monitoring functions in IO-Controller and IO-Device ............................................................. 11

    4. Mode of Operation of PROFINET IO ................. 125. System Power-up............................................... 135.1 Application and communication relations ............ 135.2 Neighborhood detection....................................... 135.3 Topology detection ............................................... 145.4 Application example for LLDP ............................. 145.5 Communication during connection establishment and parameterization .................... 155.6 Optimized connection establishment (Fast Start Up) .................................................... 16

    6. IRT Communication in PROFINET IO ............... 176.1 Definition of an IRT domain ................................. 186.2 Clock synchronization for IRT communication ..... 186.3 Flexible RT_CLASS_ 2 communication .............. 186.4 RT_CLASS_3 communication ............................. 196.5 System power-up with IRT ................................... 196.6 Tips for communication ........................................ 206.7 Mixed operation of synchronized and unsynchronized applications................................ 20

    7. PROFINET IO Controller .................................... 217.1 Parameter server ................................................. 21

    8. Device Description (GSD file) ........................... 249. I&M Functions (Identification & Maintenance) 2410. Redundancy ....................................................... 2510.1 Media Redundancy Protocol (MRP) .................... 2510.2 Media redundancy for RT frames (MRRT)........... 2610.3 Media redundancy for RT_CLASS_3 frames (MRPD) ................................................................ 26

    11. Conformance Classes (CC) .............................. 2712. Application Profiles for PROFINET IO ............. 2813. PROFINET for PA ............................................... 2914. Tool Calling Interface (TCI) ............................... 3015. PROFINET CBA .................................................. 3115.1 Technological modules in a plant ......................... 3115.2 Technological module and PROFINET component ........................................................... 3215.3 PROFINET engineering in the component model ................................................................... 3215.4 Downloading to the field devices ......................... 3315.5 Real-time communication in the component model ................................................................... 3315.6 Device description for the component model (PCD) ................................................................... 3315.7 Software stack for the component model ............ 3415.8 PROFINET CBA and PROFINET IO ................... 34

    16. Integration of Fieldbus Systems ...................... 3616.1 Integration via proxy ............................................ 3616.2 PROFIBUS and other fieldbus systems............... 36

    17. Web Integration .................................................. 3717.1 Security ................................................................ 3717.2 Segmentation....................................................... 3817.3 Network management.......................................... 3817.4 IP management ................................................... 3817.5 Diagnostics management .................................... 38

    18. PROFINET and MES .......................................... 3918.1 Operations in MES............................................... 3918.2 Maintenance state ............................................... 3918.3 Identification......................................................... 39

    19. Network Installation ........................................... 4019.1 PROFINET component approach ........................ 4019.2 Network topologies .............................................. 4019.3 Environmental classes ......................................... 4119.4 PROFINET cabling .............................................. 4119.5 Plug connectors for data ...................................... 4119.6 Data cables .......................................................... 4119.7 Plug connectors ................................................... 4219.8 Network components ........................................... 4219.9 PROFINET installation ......................................... 4219.10 Industrial Wireless ............................................... 42

    20. PROFINET IO Technology and Certification ... 4320.1 Technology support.............................................. 4320.2 Certification test ................................................... 43

    21. PI the Organization ......................................... 4521.1 Duties................................................................... 4521.2 Membership ......................................................... 4521.3 Organization for technology development ........... 4521.4 Technical support ................................................. 4521.5 Documentation..................................................... 4621.6 Web site ............................................................... 46

    22. Glossary ............................................................. 47

  • PROFINET Technology and Application, Version April 2009 3

    1. PROFINET at a Glance

    PROFINET is the automation stan-dard of PR