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    • 2. 发明公开
    • FAILURE DETECTION APPARATUS AND METHOD
    • VERFAHREN UNDGERÄTZUR FEHLERERKENNUNG
    • EP0707250A1
    • 1996-04-17
    • EP94908113.7
    • 1993-08-23
    • OMRON CORPORATION
    • IRIE, Atsushi, Omron CorporationISHIGURO, Susumu, Omron CorporationNISHIDAI, Hajime, Omron CorporationSOMA, Hiroshi, Omron CorporationTABATA, Naohiro, Omron Corporation
    • G05B19/05
    • G05B19/058G05B2219/1181
    • In a controlled apparatus including at leat one detector and at least one actuator, when an actuator not operating normally is detected, detectors which may be in trouble are inspected through a failure detecting means of a controller. This controller includes input signal storing means for storing the state of an input signal from the detector, auxiliary input signal storing means for storing the state of an input signal given from auxiliary signal generation means, logical operation means for generating an output signal to be applied to the abnormal actuator in accordance with a predetermined logic, and output signal storing means for storing the state of the output signal generated by the logical operation means. An identification code of an abnormal output signal corresponding to the actuator not operating normally is designated. The input signal which generates the abnormal output signal is designated, and affects the logical operation of the logical operation means, is extracted. When the extracted input signal is the one stored in the input signal storing means, the identification code of this input signal is stored in the storing device.
    • 在包括一个检测器和至少一个致动器的受控设备中,当检测到不正常运行的致动器时,可能通过控制器的故障检测装置检查可能处于故障的检测器。 该控制器包括用于存储来自检测器的输入信号的状态的输入信号存储装置,用于存储从辅助信号产生装置给出的输入信号的状态的辅助输入信号存储装置,用于产生要施加的输出信号的逻辑运算装置 和根据预定逻辑的异常致动器,以及输出信号存储装置,用于存储由逻辑运算装置产生的输出信号的状态。 指定对应于不正常运行的执行器的异常输出信号的识别码。 指定产生异常输出信号的输入信号,并且提取对逻辑运算装置的逻辑运算的影响。 当提取的输入信号是存储在输入信号存储装置中的输入信号时,该输入信号的识别码被存储在存储装置中。