BS EN 61804-2:2007 PDF

Scope: This standard specifies FB by using the result of harmonization work as regards several elements: c) the device model which defines the components of an IEC 61804-2 conformant device; d) 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. This standard defines a subset of the requirements of IEC 61804-1 (hereafter referred to as Part 1) only, while Part 1 describes requirements for a distributed system. The conformance statement in Annex B, which covers the conformance declaration, is related to this standard only. Requirements of Part 1 are not part of these conformance declarations. The standardization work for FB was carried out by harmonizing the description of concepts of existing technologies. It results in an abstract level that allowed the definition of the common features in a unique way. This abstract vision is called here the conceptual FB specification and mapped to specific communication systems and their accompanying definitions by the industrial groups. This standard is also based on the abstract definitions of IEC 61499-1.

BS EN 61804-2:2007 Referenced Document

IEC 60584-1 Thermocouples - Part 1: Ed. 3.0: EMF specifications and tolerances*， 2013-08-01 Update
IEC 61158 Corrigendum 1 - Digital data communications for measurement and control - Fieldbus for use in industrial control systems - Part 6: Application layer protocol specification
ISO/IEC 10646-1 Information technology — Universal Multiple-Octet Coded Character Set (UCS) — Part 1: Architecture and Basic Multilingual Plane — Amendment 2: Limbu, Tai Le, Yijing and other characters
ISO/IEC 7498-1:1994 Information technology - Open Systems Interconnection - Basic reference model: The basic model
ISO/IEC 9899 Information technology — Programming languages — C*， 2024-04-19 Update

2010 BS EN 61804-2:2010 Function blocks (FB) for process control. Specification of FB concept and electronic device description language (EDDL)
2010 BS EN 61804-2:2007 Function blocks (FB) for process control - Specification of FB concept and electronic device description language (EDDL)
2004 BS EN 61804-2:2004 Function blocks (FB) for process control - Specification of FB concept and electronic device description language (EDDL)