Industrial communication networks - Fieldbus specifications - Part 4-24: Data-link layer protocol specification - Type 24 elements
STANDARD published on 1.12.2019
Designation standards: ČSN EN IEC 61158-4-24-ed.2
Classification mark: 184020
Catalog number: 508336
Publication date standards: 1.12.2019
The number of pages: 134
Approximate weight : 433 g (0.95 lbs)
Country: Czech technical standard
Category: Technical standards 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