Foundation Fieldbus Cable Specification

1 2009 fieldbus foundation dr.

Foundation fieldbus cable specification.

These more detailed specifications are needed so that devices made by different manufacturers are interoperable in a control system. It is targeted for applications using basic and advanced regulatory control and for much of the discrete control associated with. Fieldbus is defined in iec standard 61158 2. 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.

Foundationtm fieldbus itc and pltc listed cables explained. Ff 844 is the new fieldbus foundation cable compliance specification. Fieldbus is the name of a family of industrial computer networks used for real time distributed control. Ff 844 h1 and iec 61158 2 type a.

Fieldbus cable is rated according to a four level code a b c or d each successive letter representing a cable of lower quality6. Fieldcomm group manages the f oundation fieldbus technical specifications and other related documents and provides. Fieldbus profiles are standardized by the international electrotechnical commission iec as iec 61784 61158. With the high cost of downtime in industrial applications it pays to invest in cables like belden s fieldbus to ensure maximum protection and performance.

The fieldcomm group is the developer owner and standards organization for the f oundation fieldbus technology establishing and controlling new developments and enhancements that support the needs of the process automation industry. Foundation fieldbus cable length fieldbus segment is limited to a maximum of 1900 meters this total segment length is computed by adding the length of the main trunk line and all the spurs that extend from it. In this hierarchy the upper levels for production. Detailed implementation requirements beyond the standard are available from the fieldbus foundation an industry consortium that promotes fieldbus technology.

It is an open architecture developed and administered by fieldcomm group. Alexander weiss business unit industrial projects leoni kerpen gmbh foundation fieldbus cable specification ff 844. Foundation fieldbus technical specifications. All trunk cables and spur cables must follow specification for instrument cabling iec 61158 2.

Cable specification foundation fieldbus ff 844 h1 cable design based on en 50288 7 bs 5308 part 1 iec 60332 electrical properties. The following table gives minimum specifications for each ff cable type. Our ff cable features excellent electrical charateristics low capacitance for long runs rohs compliant and ce marked. A complex automated industrial system is typically structured in hierarchical levels as a distributed control system dcs.