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'''F<small>OUNDATION</small> Fieldbus''' is an all-[[Digital data|digital]], [[Serial communications|serial]], two-way communications system that serves as the base-level [[telecommunications network|network]] in a plant or factory [[automation]] environment. It is an open architecture, developed and administered by the [[Fieldbus Foundation]].
'''Foundation Fieldbus''' (styled '''{{smallcaps|Foundation}} Fieldbus''') is an all-[[Digital data|digital]], [[Serial communications|serial]], two-way communications system that serves as the base-level [[telecommunications network|network]] in a plant or factory [[automation]] environment. It is an [[open architecture]], developed and administered by FieldComm Group.<ref>{{cite web |url=http://fieldcommgroup.org |title = Homepage {{!}} FieldComm}}</ref><ref>{{cite web |url=http://www.fieldbus.org/index.php?option=com_content&task=view&id=1273&Itemid=281 |title=Fieldbus Foundation - Fieldbus Foundation and HART Communication Foundation Members Approve Formation of FieldComm Group |website=www.fieldbus.org |url-status=dead |archive-url=https://web.archive.org/web/20141029171941/http://www.fieldbus.org/index.php?option=com_content&task=view&id=1273&Itemid=281 |archive-date=2014-10-29}} </ref>


It is targeted for applications using basic and advanced regulatory control, and for much of the discrete control associated with those functions. Foundation fieldbus technology is mostly used in process industries, but has recently been implemented in powerplants.
It is targeted for applications using basic and advanced regulatory control, and for much of the discrete control associated with those functions. Foundation Fieldbus technology is mostly used in process industries, but has recently been implemented in powerplants.


Two related implementations of F<small>OUNDATION</small> [[fieldbus]] have been introduced to meet different needs within the process automation environment. These two implementations use different physical media and communication speeds.
Two related implementations of Foundation [[Fieldbus]] have been introduced to meet different needs within the process automation environment. These two implementations use different physical media and communication speeds.
*''F<small>OUNDATION</small> Fieldbus H1'' - Operates at 31.25 kbit/s and is generally used to connect to field devices and host systems. It provides communication and power over standard stranded twisted-pair wiring in both conventional and intrinsic safety applications. H1 is currently the most common implementation.
*''[[Foundation Fieldbus H1]]'' - Operates at 31.25&nbsp;kbit/s and is generally used to connect to field devices and host systems. It provides communication and power over standard stranded twisted-pair wiring in both conventional and intrinsic safety applications. H1 is currently the most common implementation.
*''HSE'' (High-speed Ethernet) - Operates at 100/1000 Mbit/s and generally connects input/output subsystems, host systems, linking devices and gateways. It doesn't currently provide power over the cable, although work is under way to address this using the IEEE802.3af [[Power over Ethernet]] (PoE) standard.
*''HSE'' (High-speed Ethernet) - Operates at 100/1000&nbsp;Mbit/s and generally connects input/output subsystems, host systems, linking devices and gateways. It doesn't currently provide power over the cable, although work is under way to address this using the IEEE802.3af [[Power over Ethernet]] (PoE) standard.


F<small>OUNDATION</small> fieldbus was originally intended as a replacement for the [[4-20 mA]] standard, and today it coexists alongside other technologies such as [[Modbus]], [[Profibus]], and [[Industrial Ethernet]]. F<small>OUNDATION</small> fieldbus today enjoys a growing installed base in many heavy process applications such as refining, petrochemicals, power generation, and even food and beverage, pharmaceuticals, and nuclear applications. F<small>OUNDATION</small> fieldbus was developed over a period of many years by the [[International Society of Automation]], or ISA, as SP50. In 1996 the first H1 (31.25 kbit/s) specifications were released. In 1999 the first HSE (High Speed Ethernet) specifications [http://www.fieldbus.org/index.php?option=com_content&task=view&id=144&Itemid=319] were released. The International Electrotechnical Commission (IEC) standard on field bus, including F<small>OUNDATION</small> Fieldbus, is IEC 61158. Type 1 is F<small>OUNDATION</small> Fieldbus H1, while Type 5 is F<small>OUNDATION</small> Fieldbus HSE.
Foundation Fieldbus was originally intended as a replacement for the [[4-20 mA]] standard, and today it coexists alongside other technologies such as [[Modbus]], [[Profibus]], and [[Industrial Ethernet]]. Foundation Fieldbus today enjoys a growing installed base in many heavy process applications such as refining, petrochemicals, power generation, and even food and beverage, pharmaceuticals, and nuclear applications. Foundation Fieldbus was developed over a period of many years by the [[International Society of Automation]], or ISA, as SP50. In 1996 the first H1 (31.25&nbsp;kbit/s) specifications were released. In 1999 the first HSE (High Speed Ethernet) specifications [http://www.fieldbus.org/index.php?option=com_content&task=view&id=144&Itemid=319] were released. The International Electrotechnical Commission (IEC) standard on field bus, including Foundation Fieldbus, is IEC 61158. Type 1 is Foundation Fieldbus H1, while Type 5 is Foundation Fieldbus HSE.


A typical fieldbus segment consists of the following components.
A typical fieldbus segment consists of the following components.
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* And fieldbus devices, (e.g. transmitters, transducers, etc.)
* And fieldbus devices, (e.g. transmitters, transducers, etc.)


[http://www.flickr.com/photos/fieldbusfoundation/9357757351/ Click here to view a simple fieldbus segment diagram]
[https://www.flickr.com/photos/fieldbusfoundation/9357757351/ segment diagram] on [[flickr]]


⚫
An explanation of how Foundation Fieldbus works and how it is used in continuous [[process control]] is in the Foundation Fieldbus Primer which may be found at the Fieldbus Inc. website.

⚫
An explanation of how Foundation Fieldbus works and how it is used in continuous process control is found in the Foundation Fieldbus Primer listed in the external links below.


==See also==
==See also==

{{portal|Computer networking|Computer Science}}
*[[Computer network]]ing
*[[Computer network]]ing
*[[Computer science]]
*[[Computer science]]

{{-}}
==References==
{{reflist|30em}}


==External links==
==External links==
{{external links|date=October 2017}}
* [https://fieldcommgroup.org/ FieldComm Group]
*[http://www.relcominc.com/fieldbus/fbtechinfo.htm Fieldbus Wiring Guide and other technical papers]
*[http://www.relcominc.com/fieldbus/fbtechinfo.htm Fieldbus Wiring Guide and other technical papers]
*[http://mtl-fieldbus.com Manufacturers of Power Conditioners and wiring components]
*[http://mtl-fieldbus.com Manufacturers of Power Conditioners and wiring components]
*[http://fieldbus.org Official Site]
*[http://www.fieldcommgroup.org Official Site] (previously www.fieldbus.org. Has since gone through a merger.)
*[http://www.iec-normen.de/previewpdf/info_iec61804-2%7Bed1.0%7Den.pdf IEC 61804 Official Preview]
*[http://www.iec-normen.de/previewpdf/info_iec61804-2%7Bed1.0%7Den.pdf IEC 61804 Official Preview] {{Webarchive|url=https://web.archive.org/web/20100215123307/http://www.iec-normen.de/previewpdf/info_iec61804-2%7Bed1.0%7Den.pdf |date=2010-02-15 }}
*[http://www.fieldbusinc.com/info/primer.html Foundation Fieldbus Primer]
*[http://www.fieldbusinc.com/downloads/primer1_1.pdf Foundation Fieldbus Primer]
*[http://ffsearch.org Foundation Fieldbus Parameter Search]
*[http://ffsearch.org Foundation Fieldbus Parameter Search] {{Webarchive|url=https://web.archive.org/web/20170609205256/http://ffsearch.org/ |date=2017-06-09 }}

;Foundation Fieldbus End User Councils
* Middle East: [http://www.ffeucme.org/ Foundation Fieldbus End User Council - Middle East]
* Australia: [https://web.archive.org/web/20081217094338/http://www.fieldbus.org.au/ Foundation Fieldbus End User Council Australia Inc]


{{Automation protocols}}
{{Automation protocols}}


[[Category:Automation]]
[[Category:Industrial computing]]
[[Category:Industrial computing]]
[[Category:Production and manufacturing]]
[[Category:Serial buses]]
[[Category:Serial buses]]

Latest revision as of 22:44, 26 April 2024

Foundation Fieldbus (styled Foundation Fieldbus) is an all-digital, serial, two-way communications system that serves as the base-level network in a plant or factory automation environment. It is an open architecture, developed and administered by FieldComm Group.[1][2]

It is targeted for applications using basic and advanced regulatory control, and for much of the discrete control associated with those functions. Foundation Fieldbus technology is mostly used in process industries, but has recently been implemented in powerplants.

Two related implementations of Foundation Fieldbus have been introduced to meet different needs within the process automation environment. These two implementations use different physical media and communication speeds.

  • Foundation Fieldbus H1 - Operates at 31.25 kbit/s and is generally used to connect to field devices and host systems. It provides communication and power over standard stranded twisted-pair wiring in both conventional and intrinsic safety applications. H1 is currently the most common implementation.
  • HSE (High-speed Ethernet) - Operates at 100/1000 Mbit/s and generally connects input/output subsystems, host systems, linking devices and gateways. It doesn't currently provide power over the cable, although work is under way to address this using the IEEE802.3af Power over Ethernet (PoE) standard.

Foundation Fieldbus was originally intended as a replacement for the 4-20 mA standard, and today it coexists alongside other technologies such as Modbus, Profibus, and Industrial Ethernet. Foundation Fieldbus today enjoys a growing installed base in many heavy process applications such as refining, petrochemicals, power generation, and even food and beverage, pharmaceuticals, and nuclear applications. Foundation Fieldbus was developed over a period of many years by the International Society of Automation, or ISA, as SP50. In 1996 the first H1 (31.25 kbit/s) specifications were released. In 1999 the first HSE (High Speed Ethernet) specifications [1] were released. The International Electrotechnical Commission (IEC) standard on field bus, including Foundation Fieldbus, is IEC 61158. Type 1 is Foundation Fieldbus H1, while Type 5 is Foundation Fieldbus HSE.

A typical fieldbus segment consists of the following components.

  • H1 card - fieldbus interface card (It is common practice to have redundant H1 cards, but ultimately this is application specific)
  • PS - Bulk power (Vdc) to Fieldbus Power Supply
  • FPS - Fieldbus Power Supply and Signal Conditioner (Integrated power supplies and conditioners have become the standard nowadays)
  • T - Terminators (Exactly 2 terminators are used per fieldbus segment. One at the FPS and one at the furthest point of a segment at the device coupler)
  • LD - Linking Device, alternatively used with HSE networks to terminate 4-8 H1 segments acting as a gateway to an HSE backbone network.
  • And fieldbus devices, (e.g. transmitters, transducers, etc.)

segment diagram on flickr

An explanation of how Foundation Fieldbus works and how it is used in continuous process control is in the Foundation Fieldbus Primer which may be found at the Fieldbus Inc. website.

See also[edit]

References[edit]

  1. ^ "Homepage | FieldComm".
  2. ^ "Fieldbus Foundation - Fieldbus Foundation and HART Communication Foundation Members Approve Formation of FieldComm Group". www.fieldbus.org. Archived from the original on 2014-10-29.

External links[edit]

Foundation Fieldbus End User Councils
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