摘要
为了将变电站综合自动化系统中具有RS232接口的继电保护器接入到CAN通信网络中,设计了一种基于PIC18F248的RS232/CAN互连适配器,对其硬件接口电路、硬件抗干扰电路和CAN报文帧以及单片机软件流程的设计与实现进行了叙述.该互连适配器已成功应用于以RS232作为通信接口的继电保护器上,位速率高,通信稳定可靠,具有较强的抗干扰能力.
To join the relaying with communication interface of RS232 in the synthetically automated system of the transformer substation to CAN bus,the author designs an interconnected adapter between RS232 and CAN bus based on PIC18F248 Microcomputer.The design and realization of the interface circuit of hardware,the antijamming circuit of hardware, frame format of CAN message and flow chart of Microcomputer are described.Now the interconnected adapter has been successfully used in the relaying,which has higher bit rate,steady communication and better antijamming penformanu.
出处
《湖南工程学院学报（自然科学版）》
2004年第4期5-8,15,共5页
Journal of Hunan Institute of Engineering(Natural Science Edition)
