RH924UQ FOXBORO

Control systems are critical to the operation of the often highly valued U.S.critical infrastructure interconnected and interdependent systems.It is important to note that approximately 90%of the country’s critical infrastructure is privately owned and operated.Federal agencies also operate many of the aforementioned industrial processes;other examples include air traffic control and material handling(eg,postal service mail handling).This section provides SCADA,dcs,and PLC systems,including typical architectures and components.

控制系统对于经常高度重视的美国关键基础设施的运行至关重要互连和相互依赖的系统。重要的是要注意，大约90％的国家的关键基础设施是私人拥有和经营。联邦机构也经营许多的上述工业流程；其他例子包括空中交通管制和材料处理（例如，邮政服务邮件处理）本节提供了SCADA，dcs和PLC系统，包括典型的架构和组件。