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人生就像蒲公英,看似自由,卻身不由己。
級別: 工控俠客
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順序啟動,每按一次啟動按鈕啟動一臺電機,I0.0為啟動按鈕,Q0.0----Q0. IF "I0.0" AND "M0.0" = 0 THEN "Q0.4" := "Q0.3"; "Q0.3" := "Q0.2"; "Q0.2" := "Q0.1"; "Q0.1" := "Q0.0"; "Q0.0" := 1; END_IF; "M0.0" := "I0.0"; 逆序停止,每按一次停止按鈕停掉最后啟動的那臺電機,I0.1為停止按鈕,Q0.4----Q0.0 IF "M0.1" AND NOT "I0.1" THEN "Q0.0" := "Q0.1"; "Q0.1" := "Q0.2"; "Q0.2" := "Q0.3"; "Q0.3" := "Q0.4"; "Q0.4" := 0; END_IF; "M0.1" := "I0.1"; |
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