The data collecting system of bus mode as an example is introduced and general methods of constructing communicating networks of principal and subordinate mode by RS-485 are given.
文章以总线型多点数据采集系统为例，介绍了用RS - 4 85构成主从机方式通信网络的一般组网方法。
In the industrial power distribution system simulated and via RS-485 bus, the prototype realizes the control of general electric equipments, such as the three-phase motor, the fan, and so on.
样机实现了在模拟工业配电环境中通过RS - 485接口控制三相电机、风扇等常用电器设备。
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