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# WorldFIP
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WorldFIP is a fieldbus network protocol designed to provide links
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between level zero (sensors/actuators) and level one (PLCs, controllers,
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etc.) in automation systems.
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## Links
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- [ALSTOM FIPWARE](http://www.fipware.com/) (Product leaflets and User
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documentation only work with IE)
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- [WorldFIP @ CERN](http://cern.ch/cern-worldfip/)
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- [WorldFIP Users Club](http://cern.ch/worldfip-users-club/) (Hosted
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at CERN)
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- [WorldFIP ORG](http://www.worldfip.org)
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## WorldFIP usage at CERN
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At CERN over 450km of WorldFIP cables is installed, serving a total of
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about 12000 nodes. All of this is required for the lifetime of the LHC
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operation timescale of 15-20 years.
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WorldFIP is used in eight principle systems of the CERN accelerator
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complex:
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1. Power Converter Controls
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2. Quench Protection Systems
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3. Cryogenic Controls
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4. Beam Diagnosis and Instrumentation
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5. Radio Frequency
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6. Survey
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7. Experiments
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8. Radiation Monitoring
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## Standards
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### IEC 61158 and IEC 61784
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A [general introduction](http://www.fipware.fr/pdfs/50249_nt.pdf) of the
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WorldFIP standard ([and another
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overview](http://cern-worldfip.web.cern.ch/cern-worldfip/pdffiles/WFPROTOC.PDF)
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) can be found at the :http://www.worldfip.org "WorldFIP ORG" website.
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This description describes that the WorldFIP protocol is part of
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European fieldbus standard EN50170. However, it turns out that the
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standards series EN 50170 has been replaced by the 61158 series
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("Industrial communication networks. Fieldbus specifications"), in
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particular:
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- 61158-1: overview and guidance to 61158 and 61784 series
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- 61158-2: the physical layer (2007)
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- 61158-3-7 and 4-7: the data-link layer (2007)
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- 61158-5-7 and 6-7: the application layer (2007)
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- IEC 61784-1 Ed 2.0 (2007-12): Industrial communication networks .
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Profiles. Part 1: Fieldbus profiles
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- IEC 61918 Ed 1.0 (2007-12): Industrial communication networks.
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Installation of communication networks in industrial premises.
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These 8 standards are included in a CD-ROM IEC FIELDB-CPF-5 Ed. 1.0
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Industrial communication networks - Fieldbus - Communication Profile
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Family 5: WorldFIP.
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The [European fieldbus standard
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EN50170](http://cdsweb.cern.ch/search?ln=en&cc=Standards&sc=1&p=fieldbus)
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is available from the CERN document server (CERN intranet only. Thanks
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to Tullio Basaglia of the CERN Scientific Information Service).
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### EN 50170
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- [NF EN 50170 Système de communication de terrain pour application
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générale.](http://cern-worldfip.web.cern.ch/cern-worldfip/Docs/Theory%20and%20Principle/EN50170FIP-N46600.pdf)
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- Volume 3/3 (WorldFIP) (pdf page 994).
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- [NF EN 50170/A2 Système de communication de terrain pour application
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générale.](http://cern-worldfip.web.cern.ch/cern-worldfip/Docs/Theory%20and%20Principle/EN50170FIP-N46600A2.pdf)
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### MICROFIP HANDLER Software User Reference Manual
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The detailed contents of the so-called *MPS variables* is not defined in
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any of the above standards. I have not been able to find any other
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description than in the MICROFIP HANDLER Software Version 4 User
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Reference Manual.
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- [MICROFIP HANDLER Software Release 1 User Reference Manual,
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ALS 50202](http://www.fipware.fr/pdfs/50202_nt.pdf) .
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- 1.3.4.1 A definition of *Promptness, Refreshment* and a bit
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that's not in the IEC specifications called *Significance*
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(meaning: the variable has been written at least once) is given.
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- 1.3.4.2 Format of Variables produced on network (but this is for
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so-called *dynamic* variables, but the *STATUS* byte is the same
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(bit 0=refreshment, bit 2=significance, other bits may be
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anything).
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- 1.5 Detailed description of the variables *Report, List of
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equipment present, Presence, Identification, Time* and others.
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However, the Identification variable described has not the same
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PDU type and format as described in the MicroFIP manual.
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See also [WP3](WP3) for some hints to find your way through the
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standards.
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\-- Main.ErikVanDerBij - 19 Jun 2009
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