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    • 9. 发明授权
    • Apparatus for providing a universal interface in a process control system
    • 用于在过程控制系统中提供通用接口的装置
    • US5146401A
    • 1992-09-08
    • US742263
    • 1991-08-07
    • Ravinder M. BansalAmand J. Hahn
    • Ravinder M. BansalAmand J. Hahn
    • G05B19/042G06F13/38
    • G06F13/385G05B19/0421G05B2219/25314G05B2219/25428
    • A plant control system includes a plant control network for performing the overall supervision of a process being controlled. The plant control network has at least one external bus for operatively connecting a corresponding interface apparatus to the plant control network. Further, each interface apparatus interfaces with at least one predetermined field device, each field device being a type having a corresponding predetermined signal type. The interface apparatus comprises a controller for controlling the input/output (I/O) of the interface apparatus. At least one I/O module, connected to the controller, preprocesses information signals to and from the predetermined field device connected to the I/O module. The preprocessing is a translation between the signal type of the field device and signals compatible with the controller.
    • 工厂控制系统包括用于对所控制的过程进行总体监督的工厂控制网络。 工厂控制网络具有至少一个外部总线,用于将对应的接口装置可操作地连接到工厂控制网络。 此外,每个接口设备与至少一个预定现场设备接口,每个现场设备是具有相应的预定信号类型的类型。 接口装置包括用于控制接口装置的输入/输出(I / O)的控制器。 连接到控制器的至少一个I / O模块对连接到I / O模块的预定现场设备进行信息信号的预处理。 预处理是现场设备的信号类型和与控制器兼容的信号之间的转换。