A PROCESS CONTROL TRANSMITTER
    6.
    发明申请
    A PROCESS CONTROL TRANSMITTER 审中-公开
    过程控制发射器

    公开(公告)号:WO0188643A3

    公开(公告)日:2002-05-23

    申请号:PCT/US0114521

    申请日:2001-05-04

    Applicant: ROSEMOUNT INC

    CPC classification number: G08C19/02

    Abstract: Disclosed is a process control transmitter (30) having an externally accessible DC circuit common (32) that eliminates the need to perform level shifting of signals communicated between the transmitter (30) and external processing electronics (34). The process control transmitter (30) includes first (36), second (38) and third (40) terminals which feedthrough a housing (42). Circuitry (44) contained in the housing (42) is coupled to the first (36), second (38) and third (40) terminals and is adapted to communicate information to external processing electronics (34) through the second and the third terminals (38 and 40) using a digital signal that is regulated relative to a DC common (32) that is coupled to the second terminal (38). External processing electronics (34) can couple to the second and third terminals (38 and 40) and interpret the digital signal without having to perform level-shifting adjustments.

    Abstract translation: 公开了一种具有可外部访问的DC电路公共端(32)的过程控制发送器(30),其消除了对在发送器(30)和外部处理电子器件(34)之间传送的信号执行电平移位的需要。 过程控制变送器(30)包括穿过壳体(42)的第一(36),第二(38)和第三(40)端子。 包含在壳体(42)中的电路(44)耦合到第一(36),第二(38)和第三(40)端子,并且适于通过第二和第三端子将信息传送到外部处理电子器件(34) (38和40)使用相对于耦合到第二端子(38)的DC公共端(32)调节的数字信号。 外部处理电子器件(34)可以耦合到第二和第三端子(38和40)并且解释数字信号,而不必执行电平移位调节。

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