【摘要】 随着人们生活水平的提高,人们对小型冷库的要求越来越高。为此,介绍了PLC在小型冷库控制系统中的应用,并针对小型冷库控制系统存在的问题,选用压力参数作为检测信号,采用西门子S7-200CN替代原来继电器逻辑电路组成的控制器对小型冷库系统进行控制,使冷库的运行状态达到最佳。更多还原

【Abstract】 The paper introduces application,PLC to microcomputer control system of the small refrigerator.For the problem that exists in the control system in the small-sized refrigerator,by choosing the pressure parameter and temperature parameter for the checkout signal using the controller of S7-200 PLC instead of the original relay logic circuit component to control,optimum effect of the small refrigerator.Nohody is on duty may be realize.更多还原