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Active standard | Published: 01/12/2019
ČSN EN IEC 61158-4-3-ed.4
Industrial communication networks - Fieldbus specifications - Part 4-3: Data-link layer protocol specification - Type 3 elements
Available languages: English
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Detail information
Designation: ČSN EN IEC 61158-4-3-ed.4
Publication date: 01/12/2019
Pages: 182
Country: Czech technical standard
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data-link layer provides basic time-critical messaging communications between devices in an automation environment. This protocol provides communication opportunities to a pre-selected "master" subset of data-link entities in a cyclic asynchronous manner, sequentially to each of those data-link entities. Other data-link entities communicate only as permitted and delegated by those master data-link entities. For a given master, its communications with other data-link entities can be cyclic, or acyclic with prioritized access, or a combina-tion of the two. This protocol provides a means of sharing the available communication resources in a fair manner. There are provisions for time synchronization and for isochronous operationPopular Publishers
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