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.)
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.
Manufacturers of Power Conditioners and wiring components
Official Site (previously www.fieldbus.org. Has since gone through a merger.)
IEC 61804 Official Preview 2010-02-15 at the Wayback Machine
Foundation Fieldbus Primer
Foundation Fieldbus Parameter Search 2017-06-09 at the Wayback Machine
Foundation Fieldbus End User Councils
Middle East: Foundation Fieldbus End User Council - Middle East
Australia:
May 24, 2024
foundation, fieldbus, styled, digital, serial, communications, system, that, serves, base, level, network, plant, factory, automation, environment, open, architecture, developed, administered, fieldcomm, group, targeted, applications, using, basic, advanced, r. 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 flickrAn 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 editComputer networking Computer scienceReferences edit Homepage FieldComm 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 editThis article s use of external links may not follow Wikipedia s policies or guidelines Please improve this article by removing excessive or inappropriate external links and converting useful links where appropriate into footnote references October 2017 Learn how and when to remove this message FieldComm Group Fieldbus Wiring Guide and other technical papers Manufacturers of Power Conditioners and wiring components Official Site previously www fieldbus org Has since gone through a merger IEC 61804 Official Preview Archived 2010 02 15 at the Wayback Machine Foundation Fieldbus Primer Foundation Fieldbus Parameter Search Archived 2017 06 09 at the Wayback Machine Foundation Fieldbus End User Councils Middle East Foundation Fieldbus End User Council Middle East Australia Foundation Fieldbus End User Council Australia Inc Retrieved from https en wikipedia org w index php title Foundation Fieldbus amp oldid 1220949687, wikipedia, wiki, book, books, library,
