Industrial communication networks - Fieldbus specifications - Part 4-24: Data-link layer protocol specification - Type 24 elements
NORM herausgegeben am 1.12.2019
Bezeichnung normen: ČSN EN IEC 61158-4-24-ed.2
Zeichen: 184020
Katalog-Nummer: 508336
Ausgabedatum normen: 1.12.2019
Zahl der Seiten: 134
Gewicht ca.: 433 g (0.95 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen ČSN
data-link layer provides basic time-critical messaging communications between devices in an automation environment. This protocol provides communication opportunities to all participating data-link entities: a) in a synchronously-starting cyclic manner, according to a pre-established schedule, or b) in an acyclic manner, as requested by each of those data-link entities. Thus this protocol can be characterized as one which provides cyclic and acyclic access asynchronously but with a synchronous restart of each cycle