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http://dx.doi.org/10.5207/JIEIE.2010.24.5.055

Improvement of Memory Efficiency for Alternative Sequence in Process Control System Described by SFC  

You, Jeong-Bong (공주대학교 전기전자제어공학부)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.24, no.5, 2010 , pp. 55-61 More about this Journal
Abstract
When we design the control system used Programmable Logic Controller(PLC) by Sequential Function Chart(SFC), if we use a SFC, it is easy to know the sequential flow of control, to maintenance the controller and to describe a program. We program a SFC by a unique sequence, an alternative sequence and a parallel sequence. If we program a SFC by a alternative sequence, the memory size of a alternative sequence must be larger than the memory size of a unique sequence. Therefore this thesis show an efficient method to reduce a memory size and we confirmed its feasibility through actual example.
Keywords
Control System; PLC; LD; SFC; Memory Efficiency;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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