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为实现Modbus设备到BACnet/MSTP现场总线网络的集成,提出一种应用单片机技术实现BACnet/MSTP现场总线与Modbus总线协议转换方法。分析BACnet协议和Modbus协议的特点,从软硬件设计的角度,提出硬件设计方案,详细阐述界面配置软件和嵌入式协议转换器软件设计,通过对协议转换器软件设计进行优化,提高了转换器的效率。VTS测试结果表明,该模块符合BACnet标准设备规范。
In order to realize the integration of Modbus device to BACnet / MSTP fieldbus network, a method of converting BACnet / MSTP fieldbus and Modbus bus protocol using MCU technology is proposed. The characteristics of BACnet protocol and Modbus protocol are analyzed. From the perspective of hardware and software design, a hardware design scheme is proposed. The interface configuration software and embedded protocol converter software design are elaborated. By optimizing protocol converter software design, effectiveness. VTS test results show that the module complies with BACnet standard equipment specifications.