下载后可任意编辑 摘 要 本设计是针对多种液体自动混合系统，一方面由于液体进料与控制过程比较复杂、使进料参数变化较大，造成液体混合精度控制难，难以用测量控制器进行测定；另一方面由于循环控制过程出现故障不能随时停机。PLC 控制、应用于多组分原料自动混合系统，从而提高多组分原料自动混合系统的稳定性、可靠性、精确性，以及多种液体混合循环控制时，可以自动或手动调节系统的启停。在大力提倡节约能源的今日，讨论这种高性能、经济型的多组分原料自动混合系统，对于提高劳动生产率、降低能耗具有重要的现实意义。关键词： 调试；混合加热；总结Abstract共 31 页 第 1 页下载后可任意编辑This design is aimed at a variety of liquid automatically mixed system, on the one hand, because of liquid feeding and control process is more complex, make incoming parameters large variation, cause liquids mixed accuracy control difficult, it is difficult to use measurement controller are measured, On the other hand, because of cycle control process malfunction can't stop. PLC control, used in automatic mixing system components materials, thereby improving the multi-composition raw material automatically mixed system's stability, reliability, accuracy, and a variety of liquid mixing cycle control, can automatically or manually adjusting system of start-stop. In advocate vigorously to save energy today, study this high performance, economical multi-component raw material automatic hybrid systems, to improve labor productivity, reducing energy consumption has the important practical significance. Keywords：debugging ；Hybrid heating ；summary 目 录第一章 PLC 简介...............................................41.1 PLC 的基本概念及其简单介绍......................................41.2 PLC 的基本结构及其工作原理.....................................41.2.1 PLC 的基本结构............................................4共 31 页 第 2 页下载后可任意编辑1.2.3 PLC 的主要技术指标......
