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可编程序控制器(简称PC),它是将微型计算机技术直接用于生产过程自动化的先进工具。在各种生产流水线、电子机械产品及各类自动化控制装置中应用十分广泛。可编程序控制器不仅具备了微型计算机的优点,而且还具有使用灵活、通用性强、操作方便、价格便宜等优点。可编程序控制器的软件使用了“面向用户”的程序语言——梯形图,一种形式简练,直观性很强的语言。操作者可
Programmable Logic Controller (PC), an advanced tool that automates the use of microcomputer technology directly in the production process. In a variety of production lines, electrical and mechanical products and various types of automation control device is widely used. PLC not only has the advantages of microcomputer, but also has the use of flexible, versatile, easy to operate, cheap and so on. Programmable controller software uses a “user-oriented” programming language - ladder, a form of concise, intuitive language. Operator can