A.對(duì)用機(jī)械觸點(diǎn)閉合和斷開(kāi)表示的狀態(tài)量,僅考慮以無(wú)源空觸點(diǎn)接入方式
B.輸入回路應(yīng)有電氣隔離及濾波回路,延遲時(shí)間為10ms~100ms
C.用一位碼表示時(shí):閉合對(duì)應(yīng)二進(jìn)制碼1,斷開(kāi)對(duì)應(yīng)二進(jìn)制碼0;用兩位碼表示時(shí):閉合對(duì)應(yīng)二進(jìn)制碼10,斷開(kāi)對(duì)應(yīng)二進(jìn)制碼01
D.軟件防抖動(dòng)時(shí)間10~1000ms可設(shè),TCOS分辨率不大于5ms