IEC 61804-2:2017 PRV 
Pre release version

Function blocks (FB) for process control and electronic device description language (EDDL) - Part 2: Specification of FB concept

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Abstract

This Final Draft International Standard is an up to 6 weeks' pre-release of the official publication. It is available for sale during its voting period: 2017-09-29 to 2017-11-10. By purchasing this FDIS now, you will automatically receive, in addition, the final publication.

IEC 61804-2:2017 specifies FB (function blocks)  by using the result of a harmonization work as regards several elements.
a) The device model which defines the components of an IEC 61804-2 conformant device.
b) Conceptual specifications of FBs for measurement, actuation and processing. This includes general rules for the essential features to support control, whilst avoiding details which stop innovation as well as specialization for different industrial sectors.
c) The electronic device description (EDD) technology, which enables the integration of real product details using the tools of the engineering life cycle.
This third edition cancels and replaces the second edition published in 2006 and integrates parts of IEC 61804-1 which was withdrawn in January 2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) added command communication mapping in Clause 8;
b) moved and reword compatibility level definition from IEC 62804-1 to new Annex B and terms and definitions;
c) added proxy concept in new Annex C.

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Additional information

Publication typeInternational Standard
Publication date2017-09-29
Edition3.0
Available language(s)English/French
TC/SCTC 65/SC 65E - Devices and integration in enterprise systemsrss
ICS25.040.40 - Industrial process measurement and control
35.240.50 - IT applications in industry
Stability date  2020
Pages153
File size2581 KB

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