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ICS (a szabványok nemzetközi osztályozási rendszere) szerinti keresés

Nettó ár: 25750 Ft
Kosárba tesz
Alapadatok
Hivatkozási szám
MSZ EN IEC 61158-4-24:2023
Dokumentumazonosító
182421
Cím
Ipari adatközlő hálózatok. A terepi busz előírásai. 4-24. rész: Az adatkapcsolati réteg protokoll-előírása. 24-es típusú elemek (IEC 61158-4-24:2023)
Angol cím
Industrial communication networks. Fieldbus specifications. Part 4-24: Data-link layer protocol specification. Type 24 elements (IEC 61158-4-24:2023)
Alkalmazási terület
1.1 General The 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: - in a synchronously-starting cyclic manner, according to a pre-established schedule, or - 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. 1.2 Specifications This part of IEC 61158 provides specifies - procedures for the timely transfer of data and control information from one data-link user entity to a peer user entity, and among the data-link entities forming the distributed datalink service provider; - procedures for giving communications opportunities to all participating DL-entities (DLEs), sequentially and in a cyclic manner for deterministic and synchronized transfer at cyclic intervals up to 64 ms; - procedures for giving communication opportunities available for time-critical data transmission together with non-time-critical data transmission without prejudice to the timecritical data transmission; - procedures for giving cyclic and acyclic communication opportunities for time-critical data transmission with prioritized access; - procedures for giving communication opportunities based on ISO/IEC/IEEE 8802-3 medium access control, with provisions for nodes to be added or removed during normal operation; - the structure of the fieldbus DLPDUs used for the transfer of data and control information by the protocol of this document, and their representation as physical interface data units. 1.3 Procedures The procedures are defined in terms of - the interactions between peer DL-entities through the exchange of fieldbus DLPDUs; - the interactions between a DL-service (DLS) provider and a DLS-user in the same system through the exchange of DLS primitives; - the interactions between a DLS-provider and a Ph-service provider in the same system through the exchange of Ph-service primitives. 1.4 Applicability These procedures are applicable to instances of communication between systems which support time-critical communications services within the data-link layer of the OSI or fieldbus reference models, and which require the ability to interconnect in an open systems interconnection environment. Profiles provide a simple multi-attribute means of summarizing an implementation’s capabilities, and thus its applicability to various time-critical communications needs. 1.5 Conformance This document also specifies conformance requirements for systems implementing these procedures. This document does not contain tests to demonstrate compliance with such requirements.
ICS
25.040.40 Ipari folyamatok mérése és vezérlése
35.100.20 Adatkapcsolati réteg
35.110 Hálózatba szervezés
A szabvány nyelve
angol
Az érvényesség kezdete
2023-10-01
További adatok
Forrás
idt EN IEC 61158-4-24:2023; idt IEC 61158-4-24:2023
Utód
Módosítás
Kiegészítő információk
SZK-közlemények
Kapcsolódó európai jogszabály
Kereskedelmi adatok
A szabvány
kapható formátuma
Papír ,
PDF (letöltés) (a fájl mérete: 4659461) ,
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139 oldal; XB kategória
ára
Nettó: 25750 Ft
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Megtekintett szabvány

MSZ EN IEC 61158-4-24:2023

2023-10-01

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