摘要
本文提出了多台控制器使用1台Modem和1条电话线与远程PC之间进行通信的方案。该方案充分利用了和利时小型一体化PLC HOLLiAS-LEC G3的通讯功能。在描述系统方案的同时重点阐述了关键设备PLC的具体应用及参数设置。该系统成功应用了中央空调远程监控系统,应用效果良好。
A technique to solve the communication problem among multi controller and remote personal computer with a modem and a telephone line is put forward in the thesis. With the method, the communication function of the HOLLiAS-LEC G3 PLC is fully used. Meanwhile, the actually application and the setting of parameters of PLC which is the key equipment in the system is also essential introduced. The system is used in remote control system of central air conditioner successfully and the effect of it is satisfied.
