CAJ | 학술논문

为实现人机界面和单片机之间的可靠通信，对基于MODBUS协议的人机界面和单片机串行通信进行了研究。在详细讨论了MODBUS 通信协议的基础上，设计了以人机界面和单片机为核心的通信系统。通信由单片机主控，软件采用MODBUS协议的RTU模式数据格式编程。介绍了基于单片机的MODBUS协议实现，以循环冗余校验（CRC）为例介绍了人机界面宏指令。测试结果表明：该系统稳定可靠且实时性强，人机交互能力较好。
위실현인궤계면화단편궤지간적가고통신，대기우MODBUS협의적인궤계면화단편궤천행통신진행료연구。재상세토론료MODBUS 통신협의적기출상，설계료이인궤계면화단편궤위핵심적통신계통。통신유단편궤주공，연건채용MODBUS협의적RTU모식수거격식편정。개소료기우단편궤적MODBUS협의실현，이순배용여교험（CRC）위례개소료인궤계면굉지령。측시결과표명：해계통은정가고차실시성강，인궤교호능력교호。
For reliable communication between human machine interface (HMI)and MCU,the serial communication based on the MODBUS protocol is studied.The MODBUS communication protocol is discussed in detail.A communication system based on the HMI and MCU is designed.The communi-cation is controlled by MCU.The software of the system is programmed by the data transmission for-mat of MODBUS RTU.The MODBUS protocol MCU-based is realized.Then the HMI macro instruc-tion is introduced by cyclic redundancy check.Experimental results show that the control system is stable,reliable,and has the ability to better human-machine interaction.