数字通信网络的现场总线技术

Fieldbus Technology of Digital Communications Networks

现场总线是近年来迅速发展起来的一种工业数据总线，用于过程自动化、制造自动化、楼宇自动化等领域现场智能设备的互连通信网络。针对当今自动化领域技术发展的热点，论述了现场总线主要技术特征和优势，介绍了现场总线的种类和应用范围，研究了CAN总线和网络结构，指出了现场总线的发展现状。

Fieldbus was an industry data bus of rapidly developed in recent years, for process automation, manufacturing automation, building automation and other fields of field intelligent devices interconnected communications networkl For the automation field bus technology development in today~ hot spots, the main technical characteristics of the fieldbus were dis- cussed and advantages of the type fieldbus and application scope of the CAN bus and the network structure were described, that the development status of fieldbus were pointed out.