The problem in the communication between DSP and PC based on RS-485 is presented, and the solution of common-mode disturbance and EMI which are generated by incorrect ground connection is stated.
PC and DSP can exchange data each other through RS-232C serial communication.
上下位机之间通过RS-232C串行通讯交换数据。
3
An intelligent inducing ventilating control system of underground garage was composed of many inducing ventilating controllers, RS-485 communication network and PC monitor modules.