【摘要】 介绍了面粉厂负压输送系统 ,以及以 S7- 2 1 2型可编程控制器为核心的关风器转速自动报警装置的硬件、软件的设计 ,并给出该装置在某面粉车间的应用实例 .更多还原

【Abstract】 The negative pressure transport system of flour mill as well as the design of hardware and software for autoalarm of airlock’s revolution are introduced. The S7 212 PLC acts as the core of this autoalarm system. The application of this system in some flour mill is given as a example.更多还原