JPS57139845A - Analog input/output device - Google Patents

Analog input/output device

Info

Publication number
JPS57139845A
JPS57139845A JP2576181A JP2576181A JPS57139845A JP S57139845 A JPS57139845 A JP S57139845A JP 2576181 A JP2576181 A JP 2576181A JP 2576181 A JP2576181 A JP 2576181A JP S57139845 A JPS57139845 A JP S57139845A
Authority
JP
Japan
Prior art keywords
analog
signal
input
output
converter
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.)
Granted
Application number
JP2576181A
Other languages
Japanese (ja)
Other versions
JPS6156811B2 (en
Inventor
Tadashi Azegami
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin Electric Corp
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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP2576181A priority Critical patent/JPS57139845A/en
Publication of JPS57139845A publication Critical patent/JPS57139845A/en
Publication of JPS6156811B2 publication Critical patent/JPS6156811B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/05—Digital input using the sampling of an analogue quantity at regular intervals of time, input from a/d converter or output to d/a converter

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Control By Computers (AREA)

Abstract

PURPOSE:To obtain a device which has a small-scale circuit and can be constituted at a low cost, by forming in one body an input analog multiplexer and an output analog multiplexer. CONSTITUTION:In an analog multiplexer 25 constituted by forming in one body an input analog multiplexer and an output analog multiplexer, for instance, a control signal is applied to a control terminal 27 by a microcomputer 12, and one of analog input terminals 11-1m is selected and connected to a common terminal 26. Subsequently, a selected input analog signal is compared with a converted analog signal sent out from a DA converter 16 by an analog comparator 15, this result is sent out to the computer 12, and a digital signal corresponding to the input analog signal is outputted. This digital signal is inputted to the DA converter 16, also the control signal is applied to the control terminal 27, one of analog output terminals 21-2n is selected and connected to the common terminal 26, and the analog output signal is sent out from the DA converter 16.
JP2576181A 1981-02-23 1981-02-23 Analog input/output device Granted JPS57139845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2576181A JPS57139845A (en) 1981-02-23 1981-02-23 Analog input/output device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2576181A JPS57139845A (en) 1981-02-23 1981-02-23 Analog input/output device

Publications (2)

Publication Number Publication Date
JPS57139845A true JPS57139845A (en) 1982-08-30
JPS6156811B2 JPS6156811B2 (en) 1986-12-04

Family

ID=12174810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2576181A Granted JPS57139845A (en) 1981-02-23 1981-02-23 Analog input/output device

Country Status (1)

Country Link
JP (1) JPS57139845A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007228714A (en) * 2006-02-23 2007-09-06 Mitsubishi Electric Corp Power converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007228714A (en) * 2006-02-23 2007-09-06 Mitsubishi Electric Corp Power converter

Also Published As

Publication number Publication date
JPS6156811B2 (en) 1986-12-04

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