JPS5353750A - Abnormality detection system in i/o devices - Google Patents

Abnormality detection system in i/o devices

Info

Publication number
JPS5353750A
JPS5353750A JP12834876A JP12834876A JPS5353750A JP S5353750 A JPS5353750 A JP S5353750A JP 12834876 A JP12834876 A JP 12834876A JP 12834876 A JP12834876 A JP 12834876A JP S5353750 A JPS5353750 A JP S5353750A
Authority
JP
Japan
Prior art keywords
devices
abnormality detection
abnormality
existence
detect
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
JP12834876A
Other languages
Japanese (ja)
Other versions
JPS592928B2 (en
Inventor
Kazuo Takagi
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 JP51128348A priority Critical patent/JPS592928B2/ja
Publication of JPS5353750A publication Critical patent/JPS5353750A/en
Publication of JPS592928B2 publication Critical patent/JPS592928B2/ja
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To detect the existence of the abnormality in I/O device s by detecting whether constant current is applied to a data line prior to data transmission system by a current loop system.
COPYRIGHT: (C)1978,JPO&Japio
JP51128348A 1976-10-27 1976-10-27 Expired JPS592928B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51128348A JPS592928B2 (en) 1976-10-27 1976-10-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51128348A JPS592928B2 (en) 1976-10-27 1976-10-27

Publications (2)

Publication Number Publication Date
JPS5353750A true JPS5353750A (en) 1978-05-16
JPS592928B2 JPS592928B2 (en) 1984-01-21

Family

ID=14982577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51128348A Expired JPS592928B2 (en) 1976-10-27 1976-10-27

Country Status (1)

Country Link
JP (1) JPS592928B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61273639A (en) * 1985-05-29 1986-12-03 Nissin Electric Co Ltd Decentralized function type information processing system
JPS6223949U (en) * 1985-07-29 1987-02-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61273639A (en) * 1985-05-29 1986-12-03 Nissin Electric Co Ltd Decentralized function type information processing system
JPS6223949U (en) * 1985-07-29 1987-02-13

Also Published As

Publication number Publication date
JPS592928B2 (en) 1984-01-21

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