103协议的详细介绍，对于电力系统相关的自动化设备研发有帮助-A detailed descr iption of protocol 103, for power system automation equipment-related R & D has to help

iec104通信规约解析，中文简洁概述，通俗易解，适合新手(IEC 104 communication protocol analysis, Chinese concise overview, easy to understand, suitable for novices)