GB/T 20540.4-2006
測量和控制數(shù)字?jǐn)?shù)據(jù)通信 工業(yè)控制系統(tǒng)用現(xiàn)場總線 類型3:PROFIBUS規(guī)范 第4部分:數(shù)據(jù)鏈路層協(xié)議規(guī)范
Digital data communication for measurement and control Fieldbus for use in industrial control systems Type 3: PROFIBUS specification Part 4: Data link layer protocol specification
GBT20540.4-2006, GB20540.4-2006