IEC60870-5-104.pdf，入门培训.ppt,报文分析，协议测试，协议解读，协议源代码-IEC60870-5-104.pdf, introductory training .ppt, packet analyzer, protocol testing, interpretation of the agreement, protocol source code

104报文解读， 对协议IEC104 连接发送握手的每一次报文，格式的详尽解读(104 message interpretation, detailed interpretation of each message and format of protocol IEC104 connection sending handshake)