조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

  • 제12권2호
  • /
  • Pages.54-61
  • /
  • 1998
  • /
  • 1229-4691(pISSN)
  • /
  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
권호 표지

Sequential Function Chart 그래픽 언어로 記述된 공정제어 시스템에서 인터록의 실현

Implementation of interlock in Process Control System Described by Sequential Function Chart Graphical Language

  • 유정봉 (단국대학교 전자공학과) ;
  • 우광준 (단국대학교 전자공학과) ;
  • 허경무 (단국대학교 전자공학과 조교)
  • 발행 : 1998.05.01
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⟨ 이전 논문 다음 논문 ⟩

초록

PLC를 사용한 공정제어시스템의 설계에서 PLC 표준언어중 LD 언어가 가장 널리 사용되고 있다. 그러나 LD 언어는 데이터처리와 유지보수에 대한 단점이 있다. 반면에 SFC 그래픽언어는 복잡한 순차동작을 간결하게 記述할 수 있는 완벽한 방법이지만, 인터록조건을 記述하는데 문제점이 있다. 본 논문에서는 기존의 SFC 컴파일러를 사용하여 인터록을 실현하는 방법을 제시하고, 실예로서 In-Line Spin Coater에 적용하여 타당성을 확인하였다.

Ladder Diagram(LD) is the most extensively used among Programmable Logic Controller(PLC) standard languages for the design of process control system with PLC. But LD has the disadvantages for data processing and maintenance. On the other hand, there is full support for describing sequences so that complete sequential behavior can be easily broken down using a concise graphical language called Sequential Function Chart(SFC). Inspite of those characteristics, SFC is not suitable for describing interlock logic. In this paper, we propose the method for implementing interlock logic by using conventional SFC compiler and verify the effectiveness by applying proposed scheme to the In-Line Spin Coater.Coater.

키워드

참고문헌

  1. Programmable Cont-rollers-Operation and Application IAN G. Warnock
  2. The Insti-tution of Electrical Engineers Programming Industrial Con-trol Systems Using IEC1131-3 R.W.Lewis
  3. Short Papers IEEE/ASME Transactions on Mechatronics v.1 no.4 Application of the Encapsulated Actuator Model to the Sequential Cotrol Machines Masaharu Oku;Takao Kokubu;Shigeru Masuda;Kenzo Kamiyama
  4. Inter-national Conf. on IEC. IEEE 21'st v.2 Distribution PLC Control T. Kouthon;M. A. Peraldiabd;J. D. Deco-tignie
  5. IEEE Control Systems v.14 no.2 Modeling Programmable Logic Controller's for Logic Verification Il Moon
  6. 16th annual Conference of IEEE IES Applica-tion of Powerful SFC Lang uage (Hi-flow) To FA Systems In a TireIndustry Takao Kokubo;Kenzo Kamlyama;Ma-saharu Oku;Hitoshi Saito
  7. IEEE Trans on ContolSystems Techno-logy v.3 no.3 GRAFCET ; A Powerful Tool for Specification of Logic Controllers Rene David
  8. QnA series Programming Manual (SFC편)