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Normas BSI – AENOR
BS EN 61158-4-11:2014

BS EN 61158-4-11:2014

Industrial communication networks. Fieldbus specifications. Data-link layer protocol specification. Type 11 elements

Fecha:
2014-11-30 /Definitive
Comité:
GEL/65/3
Equivalencias internacionales:

EN 61158-4-11:2014

EN 61508-5:2010

IEC 61158-4-11:2014

Relación con otras normas BSI:

Reemplaza a: BS EN 61158-4-11:2012

Resumen:
IEC 61158-4-11:2014 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 data-link service provider; procedures for giving communications opportunities to all participating DL entities, sequentially and in a cyclic manner for deterministic and synchronized transfer at cyclic intervals up to one millisecond; procedures for giving communication opportunities available for time-critical data transmission together with non-time-critical data transmission without prejudice to the time-critical 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 standard ISO/IEC 8802-3 medium access control, with provisions for nodes to be added or removed during normal operation and the structure of the fieldbus DLPDUs used for the transfer of data and control information by the protocol of this standard, and their representation as physical interface data units. This third edition cancels and replaces the second edition published in 2010 and constitutes a technical revision. The main changes are: Subclauses 4.6.1, 4.6.4 and 5.4.6, Clause 6 and 7.2 for the loop-architecture are modified to cover the additional specifications for the higher data rate in the loop-architecture.
Keywords:
Data link layer (OSI), Communication procedures, Process control, Automatic control systems, Open systems interconnection, Data transmission, Industrial, Computer networks, Communication networks, Bus networks, Fieldbus, Interfaces (data processing)
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