The technologies of EDDL and EDD are introduced briefly in the paper. The development and application of EDD for Profibus-DP/PA field device based on Siemens PDM software are described.

• 本文简要介绍了EDDL和EDD技术,叙述了基于西门子PDM软件的Profibus DP/PA现场设备的EDD的开发及应用。