UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Webinars & White Papers

CEI EN IEC 61158-4-12

Industrial communication networks - Fieldbus specifications Part 4-12: Data-link layer protocol specification - Type 12 elements

active, Most Current
Buy Now
Organization: CEI
Publication Date: 1 November 2019
Status: active
Page Count: 152
ICS Code (Networking): 35.110
ICS Code (Data link layer): 35.100.20
ICS Code (Industrial process measurement and control): 25.040.40
scope:

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

a) in a synchronously-starting cyclic manner, and

b) in a cyclic or acyclic asynchronous manner, as requested each cycle 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.

Specifications

This document specifies

a) procedures for the transfer of data and control information from one data-link user entity to one or more user entity;

b) the structure of the DLPDUs used for the transfer of data and control information by the protocol of this document, and their representation as physical interface data units.

Procedures

The procedures are defined in terms of

a) the interactions between DL-entities (DLEs) through the exchange of DLPDUs;

b) the interactions between a DL-service (DLS) provider and a DLS-user in the same system through the exchange of DLS primitives;

c) the interactions between a DLS-provider and the MAC services of ISO/IEC/IEEE 8802-3.

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 reference model, 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.

Conformance

This document also specifies conformance requirements for systems implementing these procedures. This part of this document does not contain tests to demonstrate compliance with such requirements.

Document History

CEI EN IEC 61158-4-12
November 1, 2019
Industrial communication networks - Fieldbus specifications Part 4-12: Data-link layer protocol specification - Type 12 elements
General The data-link layer provides basic time-critical messaging communications between devices in an automation environment. This protocol provides communication opportunities to all...
February 1, 2016
Industrial communication networks - Fieldbus specifications Part 4-12: Data-link layer protocol specification - Type 12 elements
General The data-link layer provides basic time-critical messaging communications between devices in an automation environment. This protocol provides communication opportunities to all...
November 1, 2013
Industrial communication networks - Fieldbus specifications Part 4-12: Data-link layer protocol specification - Type 12 elements
General The data-link layer provides basic time-critical messaging communications between devices in an automation environment. This protocol provides communication opportunities to all...
November 1, 2008
Industrial communication networks - Fieldbus specifications Part 4-12: Data-link layer protocol specification - Type 12 elements
Questa prima edizione della EN 61158-4-12 sostituisce parzialmente le precedenti Norme EN 61158-4:2004 e IEC/PAS 62407:2005. Pur non contenendo rilevanti modifiche di natura tecnica, in questa...

References

Advertisement