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BS EN 61158-4-20:2014

Current

Current

The latest, up-to-date edition.

Industrial communication networks. Fieldbus specifications Data-link layer protocol specification. Type 20 elements

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-11-2014

$588.37
Including GST where applicable

Committee
GEL/65/3
DocumentType
Standard
Pages
46
PublisherName
British Standards Institution
Status
Current

1.1 General The data-link layer provides basic time-critical messaging communications between devices in an automation environment. This protocol provides a means of connecting devices through a partial mesh network, such that most failures of an interconnection between two devices can be circumvented. In common practice the devices are interconnected in a non-redundant hierarchical manner reflecting application needs 1.2 Specifications This International Standard 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; 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. 1.3 Procedures The procedures are defined in terms of the inter actions between peer DL-entities (DLEs) 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 International Standard also specifies conformance requirements for systems implementing these procedures. This standard does not contain tests to demonstrate compliance with such requirements.

Standards Relationship
IEC 61158-4-20:2014 Identical
EN 61158-4-20:2014 Identical

EN 61158-1:2014 Industrial communication networks - Fieldbus specifications - Part 1: Overview and guidance for the IEC 61158 and IEC 61784 series
IEC 61158-2:2014 Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition
ISO/IEC 7498-3:1997 Information technology — Open Systems Interconnection — Basic Reference Model: Naming and addressing
IEC 61784-1:2014 Industrial communication networks - Profiles - Part 1: Fieldbus profiles
ISO/IEC 7498-1:1994 Information technology Open Systems Interconnection Basic Reference Model: The Basic Model
EN 61158-6-20:2014 Industrial communication networks - Fieldbus specifications - Part 6-20: Application layer protocol specification - Type 20 elements
EN 61158-5-20:2014 Industrial communication networks - Fieldbus specifications - Part 5-20: Application layer service definition - Type 20 elements
IEC 62591:2016 Industrial networks - Wireless communication network and communication profiles - WirelessHART<sup>TM</sup>
IEC 61158-6-20:2014 Industrial communication networks - Fieldbus specifications - Part 6-20: Application layer protocol specification - Type 20 elements
ISO/IEC 10731:1994 Information technology Open Systems Interconnection Basic Reference Model Conventions for the definition of OSI services
EN 62591:2016 Industrial communication networks - Wireless communication network and communication profiles - WirelessHART™
IEC 61158-5-20:2014 Industrial communication networks - Fieldbus specifications - Part 5-20: Application layer service definition - Type 20 elements
EN 61158-3-20:2014 Industrial communication networks - Fieldbus specifications - Part 3-20: Data-link layer service definition - Type 20 elements
EN 61158-2:2014 Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition
EN 61784-2:2014 Industrial communication networks - Profiles - Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC 8802-3
EN 61784-1:2014 Industrial communication networks - Profiles - Part 1: Fieldbus profiles
IEC 61158-3-20:2014 Industrial communication networks - Fieldbus specifications - Part 3-20: Data-link layer service definition - Type 20 elements
IEC 61784-2:2014 Industrial communication networks - Profiles - Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC 8802-3

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