MX9306152A - Sistema de comunicacion y metodo. - Google Patents

Sistema de comunicacion y metodo.

Info

Publication number
MX9306152A
MX9306152A MX9306152A MX9306152A MX9306152A MX 9306152 A MX9306152 A MX 9306152A MX 9306152 A MX9306152 A MX 9306152A MX 9306152 A MX9306152 A MX 9306152A MX 9306152 A MX9306152 A MX 9306152A
Authority
MX
Mexico
Prior art keywords
circuit
novel
direct current
variable
control
Prior art date
Application number
MX9306152A
Other languages
English (en)
Inventor
Stephen G Seberger
Bruce F Grumstrup
George W Gassman
Original Assignee
Fisher Controls Int
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fisher Controls Int filed Critical Fisher Controls Int
Publication of MX9306152A publication Critical patent/MX9306152A/es

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7761—Electrically actuated valve

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

La presente invención se relaciona con un circuito que está conectado con un sistema de control biconductor para una entrada de corriente directa analógica variable y que también permite la comunicación digital bidireccional a lo largo de dos conductores, para operaciones de diagnóstico de un transductor. El circuito novedosos incluye un circuito interruptor que tiene una primera posición que proporcionaba la capacidad de aceptar tanto señales analógicas de corriente directa variables como señales de comunicación digitales bidireccionales presentando una primera impedancia para señales de corriente directa, y una segunda posición del interruptor para proporcionar una segunda impedancia considerablemente más elevada, mientras que usa el mismo sistema biconductor. La invención novedosa también incluye una señal de entrada analógica al circuito que permite el control adicional como una realimentación de la corriente hacia el algoritmo de control en un microcontrolador. Un transmisor de proceso auxiliar puede detectar la presión, temperatura flujo o cierta otra variable relacionada con el proceso y acoplar la misma al circuito para el control de los transductores. Finalmente, la invención novedosa incluye un regulador de voltaje novedoso y un suministro de voltaje capacitivo para utilizar el voltaje en los dos conductores del controlador para energizar también el dispositivo.
MX9306152A 1992-10-05 1993-10-01 Sistema de comunicacion y metodo. MX9306152A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US95704792A 1992-10-05 1992-10-05

Publications (1)

Publication Number Publication Date
MX9306152A true MX9306152A (es) 1994-05-31

Family

ID=25499005

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9306152A MX9306152A (es) 1992-10-05 1993-10-01 Sistema de comunicacion y metodo.

Country Status (6)

Country Link
US (2) US5451923A (es)
EP (1) EP0591926B1 (es)
JP (1) JP3421401B2 (es)
CA (1) CA2107519C (es)
DE (1) DE69327562T2 (es)
MX (1) MX9306152A (es)

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Publication number Publication date
EP0591926A3 (en) 1995-03-01
JP3421401B2 (ja) 2003-06-30
JPH06244825A (ja) 1994-09-02
CA2107519A1 (en) 1994-04-06
US5684451A (en) 1997-11-04
US5451923A (en) 1995-09-19
DE69327562D1 (de) 2000-02-17
EP0591926A2 (en) 1994-04-13
EP0591926B1 (en) 2000-01-12
CA2107519C (en) 2002-04-09
DE69327562T2 (de) 2000-06-29

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