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公开(公告)号：EP0556991A1
公开(公告)日：1993-08-25
申请号：EP93300899.7
申请日：1993-02-08
CPC分类号： G01D3/08 , G05B19/0423 , G05B19/0425 , G05B2219/21018 , G05B2219/21063 , G05B2219/21157 , G05B2219/21162 , G05B2219/25032 , G05B2219/25176 , G05B2219/25274 , G05B2219/25432
摘要： A system for connecting sensors to a control/monitoring system uses concentrators to time-division multiplex groups of sensors onto a bus. The sensors are connected to the concentrator by cord sets. A controller recovers the individual sensor data and supplies the same to the control/monitoring system. The sensors provide "on" and "off" impedances that differ from the "short" and "open" impedance of a cord set. Depending on the voltage the concentrator measures, the concentrator determines if a sensor is on or off, or a cord set is damaged or unconnected. The status of the cord sets is also provided to the controller.
摘要翻译： 用于将传感器连接到控制/监控系统的系统使用集中器将传感器组的时分复用到总线上。 传感器通过电线组连接到集中器。 控制器恢复单个传感器数据并将其提供给控制/监控系统。 传感器提供不同于电线组的“短路”和“开路”阻抗的“开”和“关”阻抗。 根据集中器测量的电压，集中器确定传感器是开启还是关闭，或者电线组损坏或未连接。 电缆组的状态也提供给控制器。
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公开(公告)号：EP0556991B1
公开(公告)日：1996-10-16
申请号：EP93300899.7
申请日：1993-02-08
CPC分类号： G01D3/08 , G05B19/0423 , G05B19/0425 , G05B2219/21018 , G05B2219/21063 , G05B2219/21157 , G05B2219/21162 , G05B2219/25032 , G05B2219/25176 , G05B2219/25274 , G05B2219/25432
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公开(公告)号：EP0671675A3
公开(公告)日：1996-09-04
申请号：EP95301423.0
申请日：1995-03-06
IPC分类号： G05B19/042
CPC分类号： G01D3/08 , G05B19/0423 , G05B19/0425 , G05B2219/21018 , G05B2219/21063 , G05B2219/21157 , G05B2219/21162 , G05B2219/25032 , G05B2219/25176 , G05B2219/25274 , G05B2219/25432
摘要： A sensor connection apparatus for connecting a plurality of sensors to a process controller having a bus for transferring information, wherein each sensor produces an output corresponding to a sensed condition, includes a respective sensor cable that can be connected at one end to each sensor; a concentrator having means for connecting each of the sensor cables thereto; and means for connecting the concentrator to the bus; the concentrator comprising circuit means producing for each sensor and associated sensor cable connected thereto a first signal in response to the sensor output and a second signal that corresponds to a sensor cable condition; the circuit means further operating to couple the first and second signals for each sensor connected to the concentrator onto the bus for access by the process controller. In one embodiment, the concentrator transmits data to the process controller using a standardized communications protocol, such as CAN, using a microcontroller and transceiver.
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公开(公告)号：EP0671675A2
公开(公告)日：1995-09-13
申请号：EP95301423.0
申请日：1995-03-06
IPC分类号： G05B19/042
CPC分类号： G01D3/08 , G05B19/0423 , G05B19/0425 , G05B2219/21018 , G05B2219/21063 , G05B2219/21157 , G05B2219/21162 , G05B2219/25032 , G05B2219/25176 , G05B2219/25274 , G05B2219/25432
摘要： A sensor connection apparatus for connecting a plurality of sensors to a process controller having a bus for transferring information, wherein each sensor produces an output corresponding to a sensed condition, includes a respective sensor cable that can be connected at one end to each sensor; a concentrator having means for connecting each of the sensor cables thereto; and means for connecting the concentrator to the bus; the concentrator comprising circuit means producing for each sensor and associated sensor cable connected thereto a first signal in response to the sensor output and a second signal that corresponds to a sensor cable condition; the circuit means further operating to couple the first and second signals for each sensor connected to the concentrator onto the bus for access by the process controller. In one embodiment, the concentrator transmits data to the process controller using a standardized communications protocol, such as CAN, using a microcontroller and transceiver.
摘要翻译： 一种用于将多个传感器连接到具有用于传送信息的总线的过程控制器的传感器连接装置，其中每个传感器产生对应于感测到的状态的输出，包括可以在一端连接到每个传感器的相应传感器电缆; 集中器具有用于将每个传感器电缆连接到其上的装置; 以及用于将集中器连接到总线的装置; 所述集中器包括电路装置，其响应于所述传感器输出而产生用于每个传感器和连接到其上的相关联的传感器电缆的第一信号和对应于传感器电缆状态的第二信号; 电路意味着进一步操作以将连接到集中器的每个传感器的第一和第二信号耦合到总线上以供过程控制器访问。 在一个实施例中，集中器使用诸如CAN的标准化通信协议使用微控制器和收发器将数据传输到过程控制器。
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