JPS56118138A - Failure diagnosing device for analog output section of data processor - Google Patents

Failure diagnosing device for analog output section of data processor

Info

Publication number
JPS56118138A
JPS56118138A JP2046980A JP2046980A JPS56118138A JP S56118138 A JPS56118138 A JP S56118138A JP 2046980 A JP2046980 A JP 2046980A JP 2046980 A JP2046980 A JP 2046980A JP S56118138 A JPS56118138 A JP S56118138A
Authority
JP
Japan
Prior art keywords
signal
circuit
digital
analog output
analog
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
JP2046980A
Other languages
Japanese (ja)
Inventor
Setsuo Arita
Tetsuo Ito
Takao Sato
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2046980A priority Critical patent/JPS56118138A/en
Publication of JPS56118138A publication Critical patent/JPS56118138A/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

Abstract

PURPOSE:To accurately detect the failure of analog output circuit being the final output section in a short time, by providing the processing circuit which compares the signal converting analog output signal into digital amount with the original digital signal of the analog output signal. CONSTITUTION:An analog input circuit 3 fetches the analog input signal 2 detected at the sensor 1 and converts it into a digital signal 4. A central processor 5 fetches the digital signal 4 from the analog input circuit 3 and outputs the digital signal to the analog output circuit 7 after operation. A digital output circuit 10 fetches the signal 6 and gives an output 11 to the processing circuit 12. On the other hand, the selector 13 is switched with the switching signal 16, the analog output signal 8 is fetched to a digital converter 14d and outputted to the processing circuit 12 as a digital signal 15. The circuit 12 compares the signal 11 and 15 and makes decision of failure through the rate of change of the signal 15.
JP2046980A 1980-02-22 1980-02-22 Failure diagnosing device for analog output section of data processor Pending JPS56118138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2046980A JPS56118138A (en) 1980-02-22 1980-02-22 Failure diagnosing device for analog output section of data processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2046980A JPS56118138A (en) 1980-02-22 1980-02-22 Failure diagnosing device for analog output section of data processor

Publications (1)

Publication Number Publication Date
JPS56118138A true JPS56118138A (en) 1981-09-17

Family

ID=12027948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2046980A Pending JPS56118138A (en) 1980-02-22 1980-02-22 Failure diagnosing device for analog output section of data processor

Country Status (1)

Country Link
JP (1) JPS56118138A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6053355A (en) * 1983-09-02 1985-03-27 Nec Corp Access system of bus type network
JPS61288203A (en) * 1985-06-17 1986-12-18 Nippon Shokubai Kagaku Kogyo Co Ltd Input/output interface for microcomputer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6053355A (en) * 1983-09-02 1985-03-27 Nec Corp Access system of bus type network
JPH0475696B2 (en) * 1983-09-02 1992-12-01 Nippon Electric Co
JPS61288203A (en) * 1985-06-17 1986-12-18 Nippon Shokubai Kagaku Kogyo Co Ltd Input/output interface for microcomputer

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