JPS56118153A - Digital input circuit - Google Patents

Digital input circuit

Info

Publication number
JPS56118153A
JPS56118153A JP2082280A JP2082280A JPS56118153A JP S56118153 A JPS56118153 A JP S56118153A JP 2082280 A JP2082280 A JP 2082280A JP 2082280 A JP2082280 A JP 2082280A JP S56118153 A JPS56118153 A JP S56118153A
Authority
JP
Japan
Prior art keywords
input
bit
processor
bundle
common line
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.)
Pending
Application number
JP2082280A
Other languages
Japanese (ja)
Inventor
Yoshitomo Nishimura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2082280A priority Critical patent/JPS56118153A/en
Publication of JPS56118153A publication Critical patent/JPS56118153A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE:To make easy the maintenance and arrangement of input circuit and the failure detection, by turning off the common line of signal input in response to the control output of processor and turning on each signal input at a bundle. CONSTITUTION:The input section 1 of three-input and a processor 2 are provided with a digital input diagnostic section 3 having the functions to turn off the common line CL of the input section 1 and to turn on the input lines S1, S2, S3 at a bundle. In diagnosing the input section 1, the common line CL is off by the processor 2 by writing in ''0'' to the bit 0 of the output register TR and also to the bit 1 through the processor 2. When contacts SG1, SG2, SG3 are on, the bit 0, bit 1, and bit 2 of the input register RR are all a ''0''. Accordingly, in case of failure when the output of the gate G1 is fixed to high potential side, CL is off and the input is on at a bundle if fixed to low potential side, allowing to diagnose the failed bits for the bits written in the processor 2 for either ''1'' or ''0''.
JP2082280A 1980-02-21 1980-02-21 Digital input circuit Pending JPS56118153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2082280A JPS56118153A (en) 1980-02-21 1980-02-21 Digital input circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2082280A JPS56118153A (en) 1980-02-21 1980-02-21 Digital input circuit

Publications (1)

Publication Number Publication Date
JPS56118153A true JPS56118153A (en) 1981-09-17

Family

ID=12037723

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2082280A Pending JPS56118153A (en) 1980-02-21 1980-02-21 Digital input circuit

Country Status (1)

Country Link
JP (1) JPS56118153A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03276204A (en) * 1990-03-23 1991-12-06 Mitsubishi Electric Corp Input system for monitoring state signal
JP2020195260A (en) * 2019-05-30 2020-12-03 三菱電機株式会社 Protective relay device
CN112444720A (en) * 2019-08-30 2021-03-05 宁德时代新能源科技股份有限公司 Detection circuit and detection method of electric control device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211840A (en) * 1975-07-18 1977-01-29 Hitachi Ltd Diagnostic system of input-output control unit
JPS5425135A (en) * 1977-07-28 1979-02-24 Toshiba Corp Self-diagnostic system of digital controller
JPS54122946A (en) * 1978-03-17 1979-09-22 Hitachi Ltd Self diagnosis unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211840A (en) * 1975-07-18 1977-01-29 Hitachi Ltd Diagnostic system of input-output control unit
JPS5425135A (en) * 1977-07-28 1979-02-24 Toshiba Corp Self-diagnostic system of digital controller
JPS54122946A (en) * 1978-03-17 1979-09-22 Hitachi Ltd Self diagnosis unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03276204A (en) * 1990-03-23 1991-12-06 Mitsubishi Electric Corp Input system for monitoring state signal
JP2020195260A (en) * 2019-05-30 2020-12-03 三菱電機株式会社 Protective relay device
CN112444720A (en) * 2019-08-30 2021-03-05 宁德时代新能源科技股份有限公司 Detection circuit and detection method of electric control device
US11435389B2 (en) 2019-08-30 2022-09-06 Contemporary Amperex Technology Co., Limited Electrical control device detection circuit, detection method, and electric vehicle

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