At last, the communication program applied in Master-Slave control system base on MODBUS protocol is designed.
最后设计应用于主从式控制系统的通讯程序，这个程序是基于MODBUS协议的。
2
Focus on the master-slave regional pilot program conducted in-depth research, including fault detection and isolation algorithm, the design and implementation of device and communications programs.
Secondly, Single-Chip computer system soft design under host and slave mode of CH375 is introduced, and the paper shows the flow chart, the program design in detail and some codes.