首先介绍了EDD产生的背景和它的基本原理，然后深入地分析了现有设备描述技术，最后针对其不足提出了本文作者的解决方法。
The paper first introduces the background of EDD and elements of EDD, then analyzes the existing device description technology, at last a new method is put forward to overcome its shortcomings.
本文介绍了其技术特点及通信连接、通信模式、设备描述等基本技术问题。
This article presents the key technology of DeviceNet, such as connection, communication model and device profile.
本文介绍了其技术特点及通信连接、通信模式、设备描述等基本技术问题。
This article presents the key technology of DeviceNet, such as connection, communication model and device profile.
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