摘要
IEC 870 5 10 1和DNP 3 0是当前远动通信规约中占主导地位的两种。为加深理解、选择和使用相关产品及设备提供参考 ,对两者在功能、结构、标准化等方面的异同点作详细说明。两种规约都是面向SCADA系统提供数据传输和控制功能 ,都采用EPA模型。但在分层定义中 ,特别是数据链路层和应用层的许多方面都存在不同程度的差异。从内容、实现和应用范围等方面综合考虑两者各有千秋 。
IEC 870?5?101 and DNP are two dominant telecontrol protocols. In order to deepen the understanding and help the selection and use of the relevant products and devices, detail descriptions are given on their functions, structure and standardization. They both provide data transmission and control functions for SCADA system, according to EPA model. They have many differences in layer definition, especially the data?link layer and application layer. Each has advantages with the consideration on content, implementation and application scope. The topologic structure of telecontrol system and the application environment should be analyzed for choosing one from the two protocols.
出处
《电力自动化设备》
EI
CSCD
北大核心
2001年第3期38-40,43,共4页
Electric Power Automation Equipment
