EN
SR EN 61158-2:2008
Reţele de comunicaţie industriale. Specificaţii ale magistralei de câmp. Partea 2: Specificaţie a stratului fizic şi definire a serviciilor
It specifies the requirements for fieldbus component parts. It also specifies the media and network configuration requirements necessary to ensure agreed levels of data integrity before data-link Layer error checking and interoperability between devices at the physical layer. The fieldbus physical layer conforms to layer 1 of the OSI 7-layer model as defined by ISO 7498 with the exception that, for some types, frame delimiters are in the physical layer while for other types they are in the data-link Layer. It includes the following significant technical changes with respect to the previous edition deletion of the former Type 6 fieldbus for lack of market relevance; addition of new fieldbus types; generalization of the seldom-used Type 1 radio to a more useful form.
Status :
Anulat
Data aprobării : 30.09.2008
Data publicării : 02.10.2008
Data anulării : 01.09.2013
Număr de pagini : 419
ICS : 25.040.40 Masurarea si controlul proceselor industriale,35.100.10 Strat fizic,35.240.50 Aplicatii IT în industrie
Comitet tehnic : 23 - Măsurare, comandă şi automatizare în procesele industriale
- Inlocuieste SR EN 61158-2:2004
- Inlocuieste SR EN 61491:2003
- Inlocuit prin SR EN 61158-2:2011