BS EN IEC 61804-2:2018
$215.11
Function blocks (FB) for process control and electronic device description language (EDDL) – Specification of FB concept
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 80 |
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 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third edition cancels and replaces the second edition published in 2006 and integrates parts of IEC 61804-1 which was withdrawn in January 2013.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.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 5 | English CONTENTS |
| 8 | FOREWORD |
| 10 | INTRODUCTION Figures Figure 1 – Position of IEC 61804-2 related to other standards and products |
| 12 | 1 Scope 2 Normative references 3 Terms, definitions, abbreviated terms and conventions 3.1 Terms and definitions |
| 21 | 3.2 Abbreviated terms |
| 22 | 3.3 Conventions for lexical structures Tables Table 1 – Field attribute descriptions |
| 23 | 4 General function block (FB) definition and EDD model 4.1 Device structure (device model) 4.1.1 Device model description Figure 2 – FB structure is derived out of the process (P&ID view) |
| 24 | Figure 3 – FB structure may be distributed between devices (according to IEC 61499-1) |
| 25 | Figure 4 – IEC 61804 FBs can be implemented in different devices Figure 5 – General components of devices |
| 26 | 4.1.2 FB type Figure 6 – Block types of IEC 61804 (all parts) |
| 27 | Figure 7 – IEC 61804 block overview (graphical representation not normative) |
| 28 | 4.1.3 FB execution |
| 29 | 4.1.4 Reference between IEC 61499 and IEC 61804 models 4.1.5 UML specification of the device model Table 2 – Equivalences between IEC 61804 and IEC 61499 model elements |
| 30 | Figure 8 – UML class diagram of the device model |
| 31 | 4.1.6 Classification of the algorithms |
| 32 | 4.1.7 Algorithm description 4.1.8 Input and output variables and parameter definition Table 3 – Variables and parameter description template |
| 33 | 4.1.9 Choice of variables and parameters 4.1.10 Mode, Status and Diagnosis 4.2 Block combinations 4.2.1 Measurement channel |
| 34 | 4.2.2 Actuation channel Figure 9 – Measurement process signal flow Figure 10 – Actuation process signal flow |
| 35 | 4.2.3 Application 4.3 EDD and EDDL model 4.3.1 Overview of EDD and EDDL Figure 11 – Application process signal flow |
| 36 | 4.3.2 EDD architecture 4.3.3 Concepts of EDD 4.3.4 Principles of the EDD development process |
| 37 | 4.3.5 Interrelations between the lexical structure and formal definitions Figure 12 – EDD generation process |
| 38 | 4.3.6 Builtins 4.3.7 Profiles 5 Detailed block definition 5.1 General 5.2 Application FBs 5.2.1 Analog Input FB |
| 39 | Figure 13 – Analog Input FB |
| 40 | 5.2.2 Analog Output FB Figure 14 – Analog Output FB |
| 41 | 5.2.3 Discrete Input FB |
| 42 | Figure 15 – Discrete input FB |
| 43 | 5.2.4 On/Off Actuation FB Discrete Output FB Figure 16 – Discrete Output FB |
| 44 | 5.2.5 Calculation FB |
| 45 | 5.2.6 Control FB Figure 17 – Calculation FB |
| 46 | Figure 18 – Control FB |
| 47 | 5.3 Component FBs 5.4 Technology Block 5.4.1 Temperature Technology Block Figure 19 – Temperature Technology Block |
| 49 | Table 4 – Example of temperature sensors of Sensor_Type |
| 50 | 5.4.2 Pressure Technology Block |
| 51 | Figure 20 – Pressure Technology Block |
| 52 | 5.4.3 Modulating Actuation Technology Block |
| 53 | Figure 21 – Modulating Actuation Technology Block |
| 54 | 5.4.4 On/Off Actuation Technology Block |
| 55 | Figure 22 – On/Off Actuation Technology Block |
| 57 | 5.5 Device (Resource) Block 5.5.1 Identification 5.5.2 Device state Table 5 – Device status state table |
| 58 | Figure 23 – Harel state chart |
| 59 | 5.5.3 Message 5.5.4 Initialisation 5.6 Algorithms common to all blocks 5.6.1 Data Input/Data Output status Table 6 – Device status transition table |
| 60 | 5.6.2 Validity 5.6.3 Restart Initialisation 5.6.4 Fail-safe |
| 61 | 5.6.5 Remote Cascade Initialisation 6 FB Environment 7 Mapping to System Management |
| 62 | 8 Mapping to Communication Figure 24 – Application structure of ISO OSI Reference Model |
| 63 | Figure 25 – Client/Server relationship in terms of OSI Reference Model Figure 26 – Mapping of IEC 61804 FBs to APOs |
| 65 | Annex A (informative)Parameter description Table A.1 – Parameter description |
| 71 | Annex B (informative)Compatibility levels B.1 General Figure B.1 – Levels of functional device compatibility |
| 72 | B.2 Compatibility B.3 Incompatibility Table B.1 – Functionality features |
| 73 | B.4 Coexistence B.5 Interconnectability B.6 Interworkability B.7 Interoperability |
| 74 | B.8 Interchangeability |
| 75 | Annex C (informative)Proxy concept and its use in FB applications C.1 General proxy concept Figure C.1 – Proxy model class diagram |
| 76 | C.2 Use of the proxy concept in FB applications Figure C.2 – Proxy integration in DCS |
| 78 | Bibliography |
Related products
-
IEC 61804-2:2018
Function blocks (FB) for process control and electronic device description language (EDDL) – Part 2:…
-
BS EN IEC 61804-2:2018 – TC:2020 Edition
Tracked Changes. Function blocks (FB) for process control and electronic device description language (EDDL) –…
