During the remote automatic controlcommunication, the partial communication structure USES RS485 bus.
在工矿自动化远程控制通信中，一部分通信结构采用的RS485总线方式。
2
The paper particularly analyzes the hardware & software principle of the multi-level controlcommunication system.
详细分析设计了多级控制通信系统的软硬件实现方法。
3
By use of MCS-51 chip microprocessor, it can fulfill the tasks, such system control and management, programmable controlcommunication and continuous regulation of voltage with high accuracy.