我給你一個高級電工的程式﹐高級電工的考題﹕
三層電梯PLC程序﹕
呼叫電路﹕
LD X001
ANI M8
OR M1
ANI X4
ANI Y0
OUT M1 1F呼叫
LD X004
AND X002
OR M2
ANI X5
OUT M2 2F上呼叫
LD X6
AND X7
OR M7
ANI Ｘ5
OUT M7 2F 下呼叫
LD X3
ANI M8
OR M3
ANI X6
ANI Y1
OUT M3 3F呼叫
上下運行﹕
LD M1
OR M7
ANI X4
ANI Y0
ANI M8
OUT Y1 下行
OUT Y11 下行指示
LD M3
OR M7
ANI X6
ANI Y1
ANI M8
OUT Y0 上行
OUT Y10 上行指示
二層同時呼﹕
LD X4
AND M2
AND M3
LD X6
AND M7
AND M1
ORB
OR M6
ANI T0
OUT M6
LD M6
AND X5
OUT M8
OUT T0 K30
顯示電路﹕因為三層電梯只顯示到三﹐所以led只接到顯示三就可以了
LD X4
OR X5
OR X6
OR Y5
ANI M0
OUT Y5 接LED(b)
LD X4
OR Y6
OR X6
ANI M0
OUT Y6 接LED(C)
LD X5
OR Y7
ANI M0
OUT Y7 接LED(E)
LD X5
OR Y4
OR X6
ANI M0
OUT Y4 接LED(agd)
LD X4
OR X5
OR X6
PLS M0
END
