DocumentCode
2166553
Title
Can IEC 61131 graphical languages be used for safety related PLC applications?
Author
Lewis, R.
Author_Institution
Advantage Tech. Consulting, Farnham, UK
fYear
2002
fDate
6 Feb. 2002
Firstpage
42401
Lastpage
42406
Abstract
This paper reviews whether the IEC standards for PLC software (IEC 61131) and function blocks (IEC 61499) can be applied to the development of software for safety-related systems. The paper both outlines benefits from using these standards and highlights some shortcomings. The paper first considers the use of IEC 61131-compliant PLCs for safety-critical applications, reviews how it may be possible for graphical programs to be independently verified and then finally reviews the potential impact of the new function block standard IEC 61499.
Keywords
IEC standards; cost-benefit analysis; program verification; programmable controllers; safety systems; safety-critical software; software standards; visual languages; visual programming; IEC 61131 graphical languages; IEC 61499; IEC standards; PLC applications; PLC software; function blocks; independently verified graphical programs; review; safety-critical applications; safety-related systems; software development;
fLanguage
English
Publisher
iet
Conference_Titel
The Application of IEC 61131 in Industrial Control (Ref. No. 2002/060), IEE
Type
conf
DOI
10.1049/ic:20020030
Filename
1028507
Link To Document