基于PLC控制的节能恒温恒湿空调系统设计

【摘 要】本文针对通信系统、银行等大型控制机房对温度和湿度控制的高性能和高稳定性的要求，提出了节能型恒温恒湿控制系统。系统采用欧姆龙cp1h型plc保证了高控制性能和稳定性；应用单片机实现远程温湿度数字化传送，无传送误差，控制距离远。利用14℃以下时的环境低温降低室内温度的方法，达到系统节能效果。

【关键词】plc控制；恒温恒湿控制；节能；数字化传输

the study on energy-save constant humidity and temperature control system based on plc

【abstract】considering the importance of high performance and stability of humidity and temprature control system in large center control room， especially for comunication system and bank system， an energy-save constant humidity and temprature control system was designed. in that system the plc was used to ensure high control performance and stability；scm to finish long-range digital transmisstion of humidity and temprature values；the control way of taking in cool air to lower the indoor temprature when it was lower than 14℃ outside to save energy effectively.

【key words】plc control；constant humidity and temprature；energy save ；digital transmission