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

Published date

03-23-2018

Publisher

European Committee for Standards - Electrical

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, abbreviated terms and conventions
4 General function block (FB) definition and EDD model
5 Detailed block definition
6 FB Environment
7 Mapping to System Management
8 Mapping to Communication
Annex A (informative) - Parameter description
Annex B (informative) - Compatibility levels
Annex C (informative) - Proxy concept and its use in
        FB applications
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

IEC 61804-2:2018 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 IEC61804-2 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third edition cancels and replaces the second edition published in 2006 and integrates parts of IEC61804-1 which was withdrawn in January 2013.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 IEC62804-1 to new Annex B and terms and definitions;c) added proxy concept in new Annex C.

Committee	CLC/TC 65X
DevelopmentNote	Supersedes and Redesignates EN 61804-2. (03/2018)
DocumentType	Standard
PublisherName	European Committee for Standards - Electrical
Status	Current
Supersedes	EN 61804-2:2007

Standards	Relationship
CEI EN IEC 61804-2:2018	Identical
SS-EN IEC 61804-2:2018	Identical
NF EN IEC 61804-2:2018	Identical
SN EN IEC 61804-2:2018	Identical
IEC 61804-2:2006	Identical
BS EN IEC 61804-2:2018	Identical
NEN EN IEC 61804-2 : 2018	Identical
UNE-EN IEC 61804-2:2018	Identical
I.S. EN IEC 61804-2:2018	Identical
PN-EN IEC 61804-2:2018	Identical

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