我IF迴圈的X0條件已經(jīng)OFF了 , 可是迴圈裡的TC0卻一直O(jiān)N著
 請(qǐng)問(wèn)該如何在X0 OFF的狀況下讓TC0 OFF呢?


IF X0 THEN ; 


OUT_T (NOT TS1 , TC0 , K50) ;  <----TC0 ON之後關(guān)掉X0仍無(wú)法OFF


OUT (TS0 , Y0) ;


OUT_T (Y0 , TC1 , K50) ; END_IF ;

st(ldf(TRUE,X0),TN0);
IF X0  THEN
    out_t(NOT TS1, TC0 ,50);
    out(TS0,Y0);
    out_t(Y0,TC1,50);
else
y0:=false;

    END_IF;

rst(ldf(TRUE,X0),TN0);
IF X0  THEN
    out_t(NOT TS1, TC0 ,50);
    out(TS0,Y0);
    out_t(Y0,TC1,50);
else
y0:=false;

    END_IF;

f語(yǔ)句一般轉(zhuǎn)換為梯形圖是跳轉(zhuǎn)指令，所以有TC0會(huì)保持之前狀態(tài)