摘要
现场总线已经成为过程控制领域的热点,代表着智能仪表发展的方向。本文着重介绍了基于HART协议的USB转换器的原理及设计,介绍了硬件电路的原理与实现,同时从软件上实现了与PC的通信,很好地实现了在PC平台下对下位机的控制。
The field bus has become important for process control, representing the development direction of intelligent instruments. This article focuses on the introduction of the principle and design of USB converter based on HAFE protocol, and the principle and implementation of hardware circuit, meanwhile, it realizes the communication with the PC relying on the goftware, which achieves controlling the lower computer under the PC platform.
出处
《电子质量》
2010年第9期33-34,37,共3页
Electronics Quality
