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/etc/nginx/nginx.conf.用plc设计一个电路,两个开关控制一个灯的亮与灭_百度知道
用plc设计一个电路,两个开关控制一个灯的亮与灭
用plc设计一个电路,控制一个住处的灯.已知住处有两个出口,要求在两处都可以控制灯的亮与灭.用梯形图和语句表怎么表示.(松下FP1系列)
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　　两出口分别用A和B表示，灯亮用C表示 梯形图：A开+B闭输出C亮 B开+A闭输出C亮 把C亮并在一块就行 语句表松下的没用过，用欧姆龙的方式来 LD A AND NOT B &LD B AND NOT A OR LD OUT C。　　是将开关信号送到数字量输入模块的一个通道，即1位，那样的话就可以将开关的状态送入PLC中。PLC里面是有程序的，程序里面是有将这个输入的开关信号定义为线路上的开关的。　　
两出口分别用A和B表示，灯亮用C表示 梯形图：A开+B闭输出C亮 B开+A闭输出C亮 把C亮并在一块就行 语句表松下的没用过，用欧姆龙的方式来 LD A AND NOT B
LD B AND NOT A OR LD OUT C
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Something has triggered an error on your
This is the default error page for
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You should customize this error page for your own
site or edit the error_page directive in
the nginx configuration file
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