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Standard ČSN EN IEC 61158-4-21-ed.3 1.10.2023 preview

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ČSN EN IEC 61158-4-21-ed.3 (184020)

Industrial communication networks - Fieldbus specifications - Part 4-21: Data-link layer protocol specification - Type 21 elements

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STANDARD published on 1.10.2023


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The information about the standard:

Designation standards: ČSN EN IEC 61158-4-21-ed.3
Classification mark: 184020
Catalog number: 517654
Publication date standards: 1.10.2023
SKU: NS-1154635
The number of pages: 118
Approximate weight : 385 g (0.85 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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Industrial process measurement and controlData link layerNetworking

Annotation of standard text ČSN EN IEC 61158-4-21-ed.3 (184020):

provides basic time-critical data communications between devices in an automated environment. Type 21 provides priority-based cyclic and acyclic data communication using an internal collision-free, full-duplex dual-port Ethernet switch technology. For wide application in various automation applications, Type 21 does not restrict the cyclic/acyclic scheduling policy in the DLL

Preview of the standard ČSN EN IEC 61158-4-21-ed.3 (184020)

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Latest update: 2026-07-10 (Number of items: 2 286 359)
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