For complex control requirements,in order to draw the ladder diagram of the output port with the”start-protect-stop”circuit mode,it is necessary to correctly analyze the control requirements and determine the key points that make up the overall control requirements.In the control based on space class logic,it is the point that affects the control state.In time-based logic-based control,the key point is the time of control state transition.
对于复杂的控制要求,为了能用“起—保—停”电路模式绘出输出口的梯形图,要正确分析控制要求,并确定组成总的控制要求的关键点。在空间类逻辑为主的控制中为影响控制状态的点。在时间类逻辑为主的控制中,关键点为控制状态转换的时间。
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