ES8800458A1 - Una interface de comunicacion en serie en linea para la comunicacion entre un transmisor de un bucle de corriente y un circuito digital - Google Patents

Una interface de comunicacion en serie en linea para la comunicacion entre un transmisor de un bucle de corriente y un circuito digital

Info

Publication number
ES8800458A1
ES8800458A1 ES556791A ES556791A ES8800458A1 ES 8800458 A1 ES8800458 A1 ES 8800458A1 ES 556791 A ES556791 A ES 556791A ES 556791 A ES556791 A ES 556791A ES 8800458 A1 ES8800458 A1 ES 8800458A1
Authority
ES
Spain
Prior art keywords
transmitter
current
serial communication
voltage pulses
comparator
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES556791A
Other languages
English (en)
Other versions
ES556791A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Babcock and Wilcox Co
Original Assignee
Babcock and Wilcox Co
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 Babcock and Wilcox Co filed Critical Babcock and Wilcox Co
Publication of ES8800458A1 publication Critical patent/ES8800458A1/es
Publication of ES556791A0 publication Critical patent/ES556791A0/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Dc Digital Transmission (AREA)
  • Computer And Data Communications (AREA)

Abstract

INTERFACE DE COMUNICACION EN SERIE EN LINEA PARA LA COMUNICACION ENTRE UN TRANSMISOR DE UN BUCLE DE CORRIENTE Y UN CIRCUITO DIGITAL. COMPRENDE: UNA RESISTENCIA CONECTADA EN UNA DE LAS LINEAS DEL BUCLE PARA ESTABLECER UNA CAIDA DE TENSION EN LA PRIMERA LINEA QUE VARIA CON LA CORRIENTE MODULADA A PARTIR DEL TRANSMISOR; UN CONDENSADOR CONECTADO A LA PRIMERA LINEA PARA RECIBIR LA CAIDA VARIABLE DE TENSION; Y UN COMPARADOR QUE TIENE UNA SALIDA Y DOS ENTRADAS, ESTANDO CONECTADA UNA DE LAS ENTRADAS AL CONDENSADOR Y LA SEGUNDA DE LAS ENTRADAS, A UNA TENSION PEQUEÑA SELECCIONADA, Y ESTANDO CONECTADA LA SALIDA DEL COMPARADOR AL CIRCUITO DIGITAL PARA APLICARLE LOS IMPULSOS DE TENSION. EL CIRCUITO DIGITAL COMPRENDE UN ORDENADOR RS-232C.
ES556791A 1985-08-12 1986-06-25 Una interface de comunicacion en serie en linea para la comunicacion entre un transmisor de un bucle de corriente y un circuito digital Expired ES8800458A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/764,914 US4816703A (en) 1985-08-12 1985-08-12 On-line serial communication interface from a current loop to a computer and/or terminal

Publications (2)

Publication Number Publication Date
ES8800458A1 true ES8800458A1 (es) 1987-11-01
ES556791A0 ES556791A0 (es) 1987-11-01

Family

ID=25072152

Family Applications (1)

Application Number Title Priority Date Filing Date
ES556791A Expired ES8800458A1 (es) 1985-08-12 1986-06-25 Una interface de comunicacion en serie en linea para la comunicacion entre un transmisor de un bucle de corriente y un circuito digital

Country Status (10)

Country Link
US (1) US4816703A (es)
EP (1) EP0212897B1 (es)
JP (1) JPS6239925A (es)
KR (1) KR870002507A (es)
AU (1) AU585032B2 (es)
BR (1) BR8603294A (es)
CA (1) CA1243095A (es)
DE (1) DE3679119D1 (es)
ES (1) ES8800458A1 (es)
IN (1) IN165456B (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604566A (en) * 1985-08-07 1986-08-05 The Babcock & Wilcox Company Voltage pulse to current regulating convertor
JP2580343B2 (ja) * 1989-10-13 1997-02-12 株式会社日立製作所 フィールド計器システム及びコミュニケータ
MX9306152A (es) * 1992-10-05 1994-05-31 Fisher Controls Int Sistema de comunicacion y metodo.
US5694109A (en) * 1996-09-04 1997-12-02 International Controls And Measurement Corp. Two-wire dc communication system and transceiver
WO1999053627A1 (en) 1998-04-10 1999-10-21 Chrimar Systems, Inc. Doing Business As Cms Technologies System for communicating with electronic equipment on a network
DE10141040B4 (de) * 2001-08-22 2006-10-26 Texas Instruments Deutschland Gmbh Serielle Schnittstelleneinheit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1543658A (en) * 1976-09-30 1979-04-04 Solartron Electronic Group Buffer circuit for a data highway
US4520488A (en) * 1981-03-02 1985-05-28 Honeywell, Inc. Communication system and method
CA1173927A (en) * 1981-11-02 1984-09-04 Felix J. Houvig Communication system and method
DE3280015D1 (en) * 1982-08-19 1989-12-14 Honeywell Inc Improvements in 2-wire analog communication systems
JPS59201537A (ja) * 1983-04-30 1984-11-15 Yamatake Honeywell Co Ltd アナログ・デイジタル通信装置
US4623799A (en) * 1985-03-27 1986-11-18 Trw Inc. High speed analog/digital driver
US4729125A (en) * 1985-08-12 1988-03-01 The Babcock & Wilcox Company On-line serial communication interface to a transmitter from a current loop
US4691328A (en) * 1985-08-12 1987-09-01 The Babcock & Wilcox Company On-line serial communication interface from a computer to a current loop

Also Published As

Publication number Publication date
US4816703A (en) 1989-03-28
AU5942186A (en) 1987-02-19
EP0212897A3 (en) 1988-01-20
EP0212897A2 (en) 1987-03-04
CA1243095A (en) 1988-10-11
ES556791A0 (es) 1987-11-01
BR8603294A (pt) 1987-03-17
AU585032B2 (en) 1989-06-08
DE3679119D1 (de) 1991-06-13
IN165456B (es) 1989-10-21
JPS6239925A (ja) 1987-02-20
KR870002507A (ko) 1987-03-31
EP0212897B1 (en) 1991-05-08

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