摘要
设计基于DP协议芯片和32位ARM的高速接口模块。用紧凑集成的磁隔离总线收发芯片代替传统的RS485驱动电路;为适应工业现场特别设计了防静电保护电路;采用DP的物理层、数据链路层和部分应用层协议,再在其上封装适用于通用设备通信的传输协议。并通过实例总结了模块的优良特性。
An interface module with high-speed communication was designed based on Profibus-DP protocol chip and 32 bit ARM chip. The tightly integrated magnetic isolated bus transceiver was used to instead of traditional RS-485 drive circuit. The ESD protection circuit was specially designed to meet the industrial field request. It was packaged for general-purpose device communication protocol by adopting DP＇s physical layer, data link layer and part of the application layer protocol. The good characteristics of the module were summarized with an example.
出处
《机床与液压》
北大核心
2012年第14期94-97,共4页
Machine Tool & Hydraulics
