...西门子S7-200；交通灯控制；PLC；梯形图 [gap=2678]Key words： Siemens S7-200；traffic light control；PLC；ladder-diagram ...
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ladder diagram [计] 梯形图 ; 梯形图LAD
relay ladder diagram 梯形图 ; 梯形图语言
A-V ladder diagram 房室梯形图
PLC ladder diagram PLC梯形图
Step Ladder Diagram 程式称为步进阶梯图 ; 步进阶梯图
To realize the transformation from ladder diagram to instruction list,a new algorithm is introduced.
提出了利用串并联归并算法以实现PLC梯形图到指令表的转换方法。
参考来源 - PLC梯形图的广义表转换 in CThe data structure of the Sequential Function Chart, storing of Ladder Diagram, and the edition of Ladder Diagram has become more user-friendly.
其中重点以图和树的数据结构讨论了图符转换、梯形图存贮算法,使梯形图编辑简便快捷,更加人性化。
参考来源 - 数控系统内置软PLC设计·2,447,543篇论文数据，部分数据来源于NoteExpress
The system control software is written by ladder diagram and system fault states can be judged and treated voluntarily.
采用梯形图编制了系统控制软件，程序能够对系统故障情况进行自动判断与处理。
With PLC checking, application of state information of PLC and PLC ladder diagram, the fault of CNC machine tool can rapidly been diagnosed accurately.
通过对可编程序控制器plc的检查，利用PLC的状态信息和PLC梯形图，可以快速、准确地判断数控机床故障。
This paper introduces the approach and method of design of PLC ladder diagram based on relay diagram in old equipment alteration, some problems in design are discussed.
介绍了用PLC改造旧设备时，根据继电器电路图设计梯形图的方法与步骤，并介绍了设计中需要注意的问题。
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