Function block applications in control systems based on IEC 61804

A variety of fieldbus technologies and digital fieldbus devices have been introduced within the process industries over the last ten years. There has been a gradual acceptance of the fact that a variety of communication technologies are needed to fully address the application requirements of a manuf...

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Bibliographic Details
Published inISA transactions Vol. 43; no. 1; pp. 123 - 131
Main Authors Diedrich, Christian, Russo, Francesco, Winkel, Ludwig, Blevins, Terry
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 2004
Elsevier
Subjects
Applied sciences
Computer science; control theory; systems
Control theory. Systems
Exact sciences and technology
Function blocks
IEC
Miscellaneous
Process industry
Software
Process industry
IEC
Standards
Function blocks
Industry
System structure
Function block diagram
Systems engineering
Control system
Manufacturer
Field bus
Process
Facility
Communication technology
Implementation
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Summary:A variety of fieldbus technologies and digital fieldbus devices have been introduced within the process industries over the last ten years. There has been a gradual acceptance of the fact that a variety of communication technologies are needed to fully address the application requirements of a manufacturing facility. However, engineers responsible for the specification, engineering, and implementation of control systems require that a common interface and functionality be provided in the control system. This capability should be independent of the underlying fieldbus technology or manufacturer of the fieldbus device. The draft IEC 61804 standard defines how a control system can be structured to provide this flexibility in the utilization of fieldbus technology. In this paper, we discuss how a consistent function block capability may be provided for all fieldbus technology utilized in a control system. Examples will be given of how this standard has been applied in modern control systems to give a consistent interface to Foundation Fieldbus and PROFIBUS. Some detail will be presented on the standard means that is defined for manufacturers to describe function block capability of a field device. An analysis is given of the impact and benefit that the IEC 61804 standard will have on the process industry and on manufacturers of control systems.
ISSN:0019-0578
1879-2022
DOI:10.1016/S0019-0578(07)60025-1