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http://dx.doi.org/10.5762/KAIS.2013.14.10.5134

Study on the Time Improvement of Interrupt Program by SFC  

You, Jeong-Bong (Division of Electrical & Electronics & Control Eng., Kongju National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.10, 2013 , pp. 5134-5139 More about this Journal
Abstract
Ladder Diagram(LD) or Sequential Function Chart(SFC) is used for the design of complex modern control system with Programmable logic controller(PLC). LD is the most widely utilized among PLC standard language. But recently, SFC is used frequently. SFC is very easy to grasp the sequential flow of control logic but is difficult for describing combinational logic. When the interrupt factor is occurred, the main program is stopped. And after the interrupt program is completed, the main program is restart. Therefore the more complex the interrupt program, the main program is interrupted downtime will be that much longer. In this paper, we propose the method for interrupt implementation without the dwell time of the main program by SFC language and confirm his feasibility through the simulation.
Keywords
PLC; LD; SFC; Control system; Interrupt;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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