第一部分是IEC61850通讯的模型文件基础，是对ICD文件结构的分析，第二部分是MMS报文分析基础，先介绍了抓报文的工具及使用方法，后演示了MMS报文分析过程。-The first part is the IEC61850 communication model file based on the analysis of the file structure of the ICD, the second part is the analysis of the basis of the MMS message, introduced the first grasping message tool and method of use, after the presentation of the analysis of MMS messages.