ladder diagram

基本解释

The hardware and software of PLC control system are detailedly described, hardware wiring diagram and ladder diagram for Cross-Wedge Rolling PLC are established.
对控制系统的硬件和软件作了洋细的阐述，并建立了PLC硬件接线方案和梯形图。
This paper also introduces the system of software design and commissioning, completed system I/O assignment graph, PLC ladder-diagram programming, set the inverter frequency output.
本文还引见了系统的软件设计及调试，完成了系统的I/O分配图、PLC梯形图顺序设计，设置了变频器的频率输出。
The program writes object code of ladder diagram of PLC into FLASH of single-chip microcomputer through RS232 interface with imitating mitsubishi communication protocol.
该程序采用仿三菱通信协议将PLC梯形图目的代码通过RS232接口更新写入到单片机白勺FLASH中。

梯形图
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。
阶梯图
梯型图

梯形图
The 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。