【摘要】 提出了一套冷冻干燥生产过程自动控制系统的实现方案 ,该方案由上位计算机、PLC和单片机小系统组成。并对该系统各组成部分的功能和下位机控制软件设计作了详细介绍。更多还原

【Abstract】 The paper introduces a scheme of an automatic control system for freeze drying process procedure.The scheme is composed of supervisory personal computer,PLC and singlechip processor system. The function of each part of the system and the design of control software of singlechip processor system are mainly illustrated.更多还原