| 黃建國 寶雞車輛廠（721006） 摘要：詳細介紹了PLC改造電梯的全過程。從機械部分的維護保養(yǎng)，到應用PLC控制技術對實現(xiàn)九層九站電梯控制系統(tǒng)改造的應用，包括硬件系統(tǒng)的構成和軟件設計的方法，對軟件設計中遇到的疑難問題進行了分析，提出了解決方法。
關鍵字：PLC，電梯，自動控制，軟件分析 Abstract： This paper proposes the whole process of elevator improvement by PLC in detail. The maintenance of the mechanical part and the controlling technologies of PLC which is applied in the implementation of the controlling system improvement for 9-floors elevator are presented in this paper, also discussed the composition of hardware system and the methods of the software design.
Keywords：PLC, elevator, automatic controlling, software design |
