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公开(公告)号:WO2005104056A3
公开(公告)日:2006-03-16
申请号:PCT/US2005007328
申请日:2005-03-07
Applicant: ROSEMOUNT INC , WESTFIELD BRIAN LEE , ORTH KELLY M
Inventor: WESTFIELD BRIAN LEE , ORTH KELLY M
CPC classification number: G01D11/24 , G01D3/08 , G01D11/245
Abstract: A process variable transmitter (100) that preferably includes a transmitter output circuit (400, 300) that provides bidirectional HART and controller area network communication transceiver lines (LOOP+, LOOP-, CAN, GND). The transmitter output circuit also includes sensor circuit interface contacts (202) . An isolated circuit (201) couples to the sensor circuit interface contacts. The isolated circuit includes sensor circuitry sensing a process variable. The isolated circuit further comprises a galvanic isolation barrier (204) galvanically isolating the sensor circuitry from the HART and controller area network transceiver lines. A stacked power supply (Figs. 9A-9B) provides power management. Other aspects may include a controller area network current limiter diagnostic output (934), timed sequencing of microcontroller startup and shutdown, a local operator interface and power management.
Abstract translation: 一种过程变量发送器(100),其优选地包括提供双向HART和控制器区域网络通信收发器线路(LOOP +,LOOP-,CAN,GND)的发射机输出电路(400,300)。 发射机输出电路还包括传感器电路接口触点(202)。 隔离电路(201)耦合到传感器电路接口触点。 隔离电路包括感测过程变量的传感器电路。 隔离电路还包括电流隔离屏障(204),用于将传感器电路与HART和控制器区域网络收发器线路电隔离。 堆叠电源(图9A-9B)提供电源管理。 其他方面可能包括控制器局域网电流限制器诊断输出(934),微控制器启动和停机的定时排序,本地操作员接口和电源管理。
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公开(公告)号:WO2005104056A2
公开(公告)日:2005-11-03
申请号:PCT/US2005/007328
申请日:2005-03-07
Applicant: ROSEMOUNT INC. , WESTFIELD, Brian, Lee , ORTH, Kelly, M.
Inventor: WESTFIELD, Brian, Lee , ORTH, Kelly, M.
IPC: G08C19/02
CPC classification number: G01D11/24 , G01D3/08 , G01D11/245
Abstract: A process variable transmitter (100) that preferably includes a transmitter output circuit (400, 300) that provides bidirectional HART and controller area network communication transceiver lines (LOOP+, LOOP-, CAN, GND). The transmitter output circuit also includes sensor circuit interface contacts (202) . An isolated circuit (201) couples to the sensor circuit interface contacts. The isolated circuit includes sensor circuitry sensing a process variable. The isolated circuit further comprises a galvanic isolation barrier (204) galvanically isolating the sensor circuitry from the HART and controller area network transceiver lines. A stacked power supply (Figs. 9A-9B) provides power management. Other aspects may include a controller area network current limiter diagnostic output (934), timed sequencing of microcontroller startup and shutdown, a local operator interface and power management.
Abstract translation: 一种过程变量发送器(100),其优选地包括提供双向HART和控制器区域网络通信收发器线路(LOOP +,LOOP-,CAN,GND)的发射机输出电路(400,300)。 发射机输出电路还包括传感器电路接口触点(202)。 隔离电路(201)耦合到传感器电路接口触点。 隔离电路包括感测过程变量的传感器电路。 隔离电路还包括电流隔离屏障(204),用于将传感器电路与HART和控制器区域网络收发器线路电隔离。 堆叠电源(图9A-9B)提供电源管理。 其他方面可能包括控制器局域网电流限制器诊断输出(934),微控制器启动和停机的定时排序,本地操作员接口和电源管理。
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