SR EN 61158-4-2:2008

Reţele de comunicaţie industriale. Specificaţii ale magistralei de câmp. Partea 4-2: Specificaţie a protocolului stratului legătură de date. Elemente de tip 2

It provides basic time-critical messaging communications between devices in an automation environment. This protocol provides communication opportunities to all participating data-link entities, sequentially and in a cyclic synchronous manner. Foreground scheduled access is available for time-critical activities together with background unscheduled access for less critical activities. It includes the following significant changes with respect to the previous edition deletion of the former Type 6 fieldbus, and the placeholder for a Type 5 fieldbus data-link layer, for lack of market relevance; addition of new types of fieldbuses; division of this part into multiple parts numbered.

Adaugă în coș

Informații generale

Status : Anulat
Data aprobării : 30.09.2008
Data publicării : 02.10.2008
Data anulării : 28.03.2015
Număr de pagini : 227
ICS : 25.040.40 Masurarea si controlul proceselor industriale,35.100.20 Strat legatura de date
Comitet tehnic : 23 - Măsurare, comandă şi automatizare în procesele industriale

Relaţii cu alte standarde:

Inlocuieste SR EN 61158-4:2004
Inlocuit prin SR EN 61158-4-2:2012