【正文】
y control and relay wiring numerous shortings of the high failure rate and maintenance is not easy shortings. As the mainstream controller in the domestic market, the PLC has an important role in the market, technology, industry, PLC control instead of the relay control is a general trend. This is the number of horses required for factories, warehouses fabric control and use the car to transport materials to purchase this process PLC design to have a better understanding of the PLC, which is closer to the development of society, a better understanding of science and technology progress. Also through the parison of past and present reflect the more rapid social progress. Keywords PLC operational expected car design the external wiring diagram ladder programming 目錄 1 緒論 ...................................................................... 1 2 PLC 的概述 ................................................................. 1 3 倉(cāng)儲(chǔ)管理 .................................................................. 1 4 倉(cāng)儲(chǔ)管理控制系統(tǒng)設(shè)計(jì) ....................................................... 1 控制系統(tǒng)分析 ................................................................ 1 計(jì)數(shù)過程 ............................................................... 1 小車運(yùn)料過程 ........................................................... 2 方案選擇 .................................................................... 2 地址 I/O 分配 ................................................................ 2 外圍接線圖 .................................................................. 4 功能流程圖 ......................................................