然后根据逻辑运算的结果，刷新该逻辑线圈在系统 RAM 存储区中对应位的状态；或者刷新该输出线圈在 I/O 映象区中对应位的状态；或者确定是否要执行该梯形图所规定的特殊功能指令。即，在用户程序执行过程中，只有输入点在 I/O 映象区内的状态和数据不会发生变化
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