PLC在温室温度控制系统中的应用

介绍了温室环境的特点，根据其特点，提出温室温度控制要求，进而确定了以PLC为核心的温室温度控制系统．阐述了温室温度调节的工艺流程，详细介绍了温室温度控制系统的工作原理和组成，并结合实例说明其硬件组成和软件编程．实践证明，该控制系统操作方便，维修简单，运行稳定、可靠、

Application of PLC to Temperature Control System of Greenhouse

The specific features of the greenhouse's circumstance are introduced. According to this, the requirements of the temperature for the greenhouse are put forward, and PLC is adopted as the key to set up the control system of greenhouse's temperature. The technical process for the adjustment of greenhouse's temperature is described, and the working principle and composition of the control system are introduced in detail. The structure of the hardware and the program design are illustrated in a practical project, and the practice shows that the operation of the control system is very simple and the maintenance is convenient, and its working is reliable.