COM口485通信,与广州致远电子全新系列的基于 RS-485 总线接口的数据采集模块能 通信，同时将模块上的数据能显示在屏幕上-COM port 485, and Guangzhou Zhiyuan electronics based on new series The data acquisition module of the RS-485 bus interface can communicate, and the data on the module can be displa