久久免费视频在线观看6_成人精品一区亚洲午夜久久久_久久www视频_天天干干夜夜_日本一区二区三区视频在线播放_亚洲va视频

誰有樣例

富士的SPH系列PLC所使用的ST：
IF ENABLE THEN
    (*如果復(fù)位按鈕按下，那么系統(tǒng)復(fù)位*)
    IF RESET THEN
        LOOP_CASE := 0;
    END_IF;
    
    (*如果運(yùn)行過程中氣壓，風(fēng)壓異常，停止*)
    IF (NOT(X4) OR NOT(X5)) AND LOOP_CASE <> 0 THEN
        LOOP_CASE := -10;
    END_IF;
        
    (*步進(jìn)循環(huán)*)
    CASE LOOP_CASE OF
        -10: Y0 := FALSE;
             Y1 := FALSE;
             Y2 := FALSE;
             Y3 := FALSE;
             Y4 := TRUE;
             Y5 := FALSE;
             STEP := LOOP_CASE;
          0:(*如果氣壓正常，那么程序繼續(xù)運(yùn)行*)
              IF X5 THEN
                LOOP_CASE := 10;
                STEP := LOOP_CASE;
            ELSE
                LOOP_CASE :=-10;
                STEP := LOOP_CASE;
            END_IF;
         10:(*開風(fēng)機(jī)，同時(shí)檢測風(fēng)壓是否正常*)
             Simple_Button_1(Button:=X1);
            Y4:=Simple_Button_1.Out_Coil;
            IF Y4 THEN
                IF  X4 THEN
                    LOOP_CASE := 20;
                ELSE
                    LOOP_CASE := -10;
                END_IF;
            END_IF;
            STEP := LOOP_CASE;
         20:(*燃燒啟動(dòng)，同時(shí)啟動(dòng)后延時(shí)10S*)
             Simple_Button_2(Button:=X2);
            Y3:=Simple_Button_2.Out_Coil;
            IF Y3 THEN
                IF CLOCK_1S THEN
                    DelayTime := DelayTime + 1;
                END_IF;
                IF DelayTime >= 10 THEN
                    LOOP_CASE := 30;
                    DelayTime := 0;
                END_IF;
            END_IF;
            STEP := LOOP_CASE;
         30:(*Y0輸出，延時(shí)2S*)
             Y0:=TRUE;
            IF Y0 THEN
                IF CLOCK_1S THEN
                    DelayTime := DelayTime + 1;
                END_IF;
                IF DelayTime >= 2 THEN
                    LOOP_CASE := 40;
                    DelayTime := 0;
                END_IF;
            END_IF;
            STEP := LOOP_CASE;
         40:(*Y2輸出，延時(shí)1S*)
             Y2:=TRUE;
            IF Y2 THEN
                IF CLOCK_1S THEN
                    DelayTime := DelayTime + 1;
                END_IF;
                IF DelayTime >= 1 THEN
                    LOOP_CASE := 50;
                    DelayTime := 0;
                END_IF;
            END_IF;
            STEP := LOOP_CASE;
         50:(*Y1輸出，延時(shí)3S*)
             Y1:=TRUE;
            IF Y1 THEN
                IF CLOCK_1S THEN
                    DelayTime := DelayTime + 1;
                END_IF;
                IF DelayTime >= 3 THEN
                    LOOP_CASE := 60;
                    DelayTime := 0;
                END_IF;
            END_IF;
            STEP := LOOP_CASE;
         60:(*點(diǎn)火次數(shù)檢測*)
             IF COUNT>=3 THEN
                LOOP_CASE := 200;
            ELSE
                LOOP_CASE :=70;
            END_IF;
            STEP := LOOP_CASE;
         70:(*火焰檢測*)
             IF X0 THEN
                Y3 := FALSE;
            ELSE
                LOOP_CASE := 80;
            END_IF;
            STEP := LOOP_CASE;
         80:(*點(diǎn)火失敗的處理*)
             Y1:=FALSE;
            Y2:=FALSE;
            Y3:=TRUE;
            IF (NOT Y1) AND (NOT Y2) AND Y3 THEN
                IF CLOCK_1S THEN
                    DelayTime := DelayTime + 1;
                END_IF;
                IF DelayTime >= 10 THEN
                    LOOP_CASE := 90;
                    DelayTime := 0;
                END_IF;
            END_IF;
            STEP := LOOP_CASE;
         90:(*Y2輸出，延時(shí)1S*)
             Y2 := TRUE;
            IF Y2 THEN
                IF CLOCK_1S THEN
                    DelayTime := DelayTime + 1;
                END_IF;
                IF DelayTime >= 1 THEN
                    LOOP_CASE := 100;
                    DelayTime := 0;
                END_IF;
            END_IF;
            STEP := LOOP_CASE;
        100:(*Y1輸出，計(jì)數(shù)器加1*)
            Y1 := TRUE;
            COUNT := COUNT + 1;
            LOOP_CASE := 60;
            STEP := LOOP_CASE;
        200:(*重啟動(dòng)*)
            Y0 := TRUE;
            Y1 := FALSE;
            Y2 := FALSE;
            Y3 := TRUE;
            Y4 := TRUE;
            IF NOT X6 THEN
                IF CLOCK_2S_Out THEN
                    Y5 := TRUE;
                ELSE
                    Y5 := FALSE;
                END_IF;
            END_IF;
            IF X3 THEN
                COUNT := 0;
                LOOP_CASE := 60;
                STEP := LOOP_CASE;
            END_IF;
    END_CASE;
END_IF;

問題是這樣的樣例對(duì)您有多大的幫助呢？？？

具有參考價(jià)值，謝謝