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四、举例 以U系列的三种编程方法:梯形图(LAD),控制系统流程图(CSF)和语句表(STL)举例。例一,计数增量型码盘的正、反转信号。正反转开
Fourth, for example U series three kinds of programming methods: ladder (LAD), control system flow chart (CSF) and statement list (STL) for example. Example One, counting incremental encoder positive and negative signals. Reversible