MPRC086406-502 ABB

For an automation project(especially a medium and large-scale control system),it is very important to choose a network.First,the network must be open to facilitate the integration of different devices and the expansion of the future system scale;secondly,according to the transmission performance requirements of different network levels,the form of the network must be selected,which requires a deeper understanding of the network standard protocol,Under the premise of the mechanism;once again,comprehensively consider specific issues such as system cost,equipment compatibility,and site environment applicability,and determine the network standards used at different levels.

对于一个自动化工程(特别是中大规模控制系统)来讲，选择网络非常重要的。首先，网络必须是开放的，以方便不同设备的集成及未来系统规模的扩展；其次，针对不同网络层次的传输性能要求，选择网络的形式，这必须在较深入地了解该网络标准的协议、机制的前提下进行；再次综合考虑系统成本、设备兼容性、现场环境适用性等具体问题，确定不同层次所使用的网络标准。