An Efficient Method of Remote Control for Select Sequence in Process Control

공정제어에서 선택시퀀스를 위한 효율적인 리모트 콘트롤 제어방법

  • Kong, Heon-Tag (Division of Computer Science Eng. Kongju University) ;
  • Kim, Chi-Su (Division of Computer Science Eng. Kongju University) ;
  • You, Jeong-Bong (Division of Electrical & Electronics & Control Eng. Kongju University)
  • 공헌택 (공주대학교 컴퓨터공학부) ;
  • 김치수 (공주대학교 컴퓨터공학부) ;
  • 유정봉 (공주대학교 전기전자제어공학부)
  • Published : 2010.01.31


When we design the control system used Programmable Logic controller(PLC), if we program a Sequential Function Chart(SFC), It is easy to understand the sequential flow of control, to maintenance the controller and to describe a program. SFC language is programmed by a single sequence, a select sequence and a parallel sequence. In a select sequence, when the select step is error, the whole process is stopped. If the error step has no connection the whole process, the loss is down when we debugging the program without stopping the whole process. Therefore, this thesis shows the efficient method of remote control for select sequence and we confirmed its feasibility through actual example.


PLC;SFC;Ladder Diagram;Select Sequence;Remote Control


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