BS EN IEC 61804-2:2018 is applicable to function blocks (FB) for process control.

This document specifies FB 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.

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 is mapped to specific communication systems and their accompanying definitions by the industrial groups.


Cross References:
IEC 61499-1:2012
ISO/IEC 7498-1
IEC 61158 (all parts)
IEC 61131-3
IEC 61804-5
ISO 9899
IEC 61804 (all parts)
ISO/IEC 10646
ISO/IEC 2022
ISO/IEC 19501
IEC 60584-1
ISO 15745-1
IEC 61804-3
IEC 60050-351:1998


Replaces BS EN 61804-2:2007 which remains current

All current amendments available at time of purchase are included with the purchase of this document.