【摘要】 本文介绍了PLC在水厂过滤工艺自动控制中的应用，着重阐述过滤工艺流程、系统控制原理与功能，系统硬件组成及软件设计思路。更多还原

【Abstract】 The paper introduces the PLC’ application in the automatic control of filter-technics in Water Plant,especially emphasizes the procedure of water filter-technics,the principle and function of system-control,the structure of system hardware and the idea of software-design. [更多还原