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实时以太网的技术发展很快,已从管理层向现场层渗透,它进入工业自动化领域已经是不争的事实。目前,已有许多国际著名的公司和组织提出了各自的解决方案,有鉴于此,IEC(国际电工委员会)在SC65C (数字通信分委员会)下成立了WGll(实时以太网)工作组,组长为Ludwig Winkel(德国Siemens公司)并着手制定实时以太网的国际标准。有关的标准为IEC 61158 (Fieldbus Standard,现场总线标准);IEC 61784-1(Communication Family Profiles,通信集的行规;Function Blocks for Process Con-trol,用于过程控制的功能块);IEC61784-2 Ed.1.0
Real-time Ethernet technology has developed rapidly, has infiltrated from the management to the field level, it has entered the field of industrial automation is an indisputable fact. At present, many international famous companies and organizations have put forward their own solutions. In view of this, the IEC (International Electrotechnical Commission) set up WGll (Real-Time Ethernet) working group under SC65C (Digital Communications Subcommittee) Ludwig Winkel (Siemens AG, Germany) and set out to develop an international standard for real-time Ethernet. The relevant standards are IEC 61158 (Fieldbus Standard); IEC 61784-1 (Communication Family Profiles, Function Blocks for Process Con-trol, function blocks for process control); IEC 61784-2 Ed .1.0