【摘要】 PLC(可编程逻辑控制器)在工业领域应用得非常广泛,而在实际应用中,如果对输入信号处理不好,经常会出现异常的情况。文中以Siemens 224 PLC为例,分析了PLC本身提供的输入信号滤波方法,提出利用定时器作为更长时间滤波的方法。更多还原

【Abstract】 The application of PLC on industry control is very wide.In many control systems,there appear abnormal states because of incorrect use of input signal.In this paper,the filtering methods of input signal are introduced,and using PLC timer to filter the input signal effectively is suggested.更多还原