Realization idea and algorithm of ladder diagram program checking would be introduced mainly.
主要介绍一下对梯形图程序检查的实现思路和具体的实现算法。
The technological process of flash welding and the characteristic of electricity control are analyzed. The control plan with PLC, ladder diagram and the program are put forward.
分析了闪光对头焊工艺过程和电气控制特点，提出采用PLC控制方案，给出了控制系统梯形图及程序。
Algorithm flowchart of PLC programming and the ladder diagram of some crucial steps are given, such as quantizing program of the input signal and the inquiry program of fuzzy control table.
给出了PLC程序设计的算法流程图及输入量量化程序、模糊控制表查询程序等关键步骤的梯形图。
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