A Study on Execution Time of Ladder Diagram in Programmable Controller

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In this paper, we discuss the experimental method to evaluate the execution time of Ladder Diagram (LD), which is the most commonly used language in programmable controllers (PCs). First, the fundamental LD is proposed to examine the cyclic scan of PCs. Using real samples of PCs, it is clarified that dispersion of the cyclic scan can not be necessarily neglected. Second, relationship between the execution time of LD and the number of ladder rungs, logical AND and OR operations, which are important components in ladder programming, is examined by adding some rungs and contacts to the fundamental LD. Some experiments are conducted, and then the means and standard deviations are obtained through some measurements. Moreover, the stochastic tests are conducted to verify the relationship between the execution time and the LD components.

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  • 電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society  

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society 119(8), 1053-1060, 1999-08 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10004297018
  • NII書誌ID(NCID)
    AN10012320
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09136339
  • NDL 記事登録ID
    4816620
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-1608
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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