程序:
//啟動(dòng)、停止判斷
IF "啟動(dòng)" AND "啟動(dòng)" =0 THEN
"基本數(shù)據(jù)塊".啟動(dòng)值 := 1;
"基本數(shù)據(jù)塊".停止值 := 0;
ELSIF "停止" THEN
"基本數(shù)據(jù)塊".啟動(dòng)值 := 0;
"基本數(shù)據(jù)塊".停止值 := 1;
END_IF;
IF "基本數(shù)據(jù)塊".啟動(dòng)值 THEN
IF "基本數(shù)據(jù)塊".加減計(jì)數(shù)器.CV >= 100 THEN
"基本數(shù)據(jù)塊".flag := 1;
END_IF;
IF "基本數(shù)據(jù)塊".加減計(jì)數(shù)器.CV <= 0 THEN
"基本數(shù)據(jù)塊".flag := 0;
END_IF;