介绍PROFIBUS&PROFINET现场总线技术在烟草行业的成功应用,及在实际应用过程中存在的一些问题:现场总线的在线诊断技术;设备的选型及备件的订购;不同厂家及同一厂家不同版本系列的现场设备在系统层面上的互操作等。对这些问题进行了一些探讨和分析,指出了影响现场总线技术可持续发展的一些因素。 This paper introduces the successful application of PROFIBUS & PROFINET fieldbus technology in tobacco industry and some problems in practical application: the on-line diagnosis of fieldbus; the selection of equipment and the ordering of spare parts; the field devices of different manufacturers and different versions of the same manufacturer Interoperability at the system level. Some discussions and analyzes on these issues point out some factors that affect the sustainable development of fieldbus technology.