Abstract
With the rapid growth of the Internet, the interest for connecting devices such as frequency converters into Internet has increased. Web browser is used by remote operator to control and monitor frequency converters via Internet and this application will be widely utilized. This article makes a study of web-based monitoring for frequency converters with USS interface. It is based on TCP/IP stack and the real time operating systemμC/OS-II. Then this paper presents a detailed analysis of the Web server, and the interactive method of the browser and the Web server. In the design of the server, it emphasizes the USS protocol telegram processing method. The architecture of embedded monitoring system, hardware and software implementation are also described in this article.
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