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    • 7. 发明公开
    • Gateway having an input/output scanner
    • Ein- / Ausgang-Scanner网关
    • EP2296066A2
    • 2011-03-16
    • EP10184741.6
    • 2005-08-17
    • Schneider Electric USA, Inc.
    • The designation of the inventor has not yet been filed
    • G05B19/05
    • G05B19/052G05B2219/15028G05B2219/15029G05B2219/15032H04L12/4625H04L2012/40228H04L2012/4026
    • What is disclosed is a gateway, and associated control system and method, for communication between a main control device connected to a local area network and a plurality of slave devices connected to a local serial bus in an industrial automation control network. The gateway comprises a first interface for communication with the main control device over the local area network; a second interface for communication with a plurality of slave devices over the local serial bus and an I/O scanner processor. The I/O scanner processor is configured to poll an I/O state of each of the plurality of slave devices over the second interface, to process the I/O state information received from polling each slave device and determine whether to transmit information to the main control device based on the I/O state information, and to occasionally transmit it such information to the main control device over the first interface based on such determination, thereby offloading the slave device I/O scan processing from the main control device to the gateway.
    • 所公开的是用于在连接到局域网的主控制设备与连接到工业自动化控制网络中的本地串行总线的多个从设备之间进行通信的网关及相关控制系统和方法。 网关包括用于通过局域网与主控设备进行通信的第一接口; 用于通过本地串行总线和I / O扫描器处理器与多个从设备进行通信的第二接口。 I / O扫描器处理器被配置为通过第二接口轮询多个从设备中的每一个的I / O状态,以处理从轮询每个从设备接收到的I / O状态信息,并确定是否向 基于该I / O状态信息的主控装置,并且经由第一接口偶尔将该信息通过第一接口发送给主控装置,从而将从装置I / O扫描处理从主控装置卸载到 网关。