描述
如果设计员对编程机操作比较熟悉，且具有一定的PLC程序设计知识，也可省去手工绘制梯形图这一步骤，直接通过键盘在编程机上编辑梯形图程序。由于编程机具有丰富的编辑功能，可以很方便地实现程序的显示、输入、输出、存储等操作，因此，采用编程机编程可以缩短设计周期，大大提高工作效率。
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