JPS5422134A - Auxiliary switching system - Google Patents

Auxiliary switching system

Info

Publication number
JPS5422134A
JPS5422134A JP8706777A JP8706777A JPS5422134A JP S5422134 A JPS5422134 A JP S5422134A JP 8706777 A JP8706777 A JP 8706777A JP 8706777 A JP8706777 A JP 8706777A JP S5422134 A JPS5422134 A JP S5422134A
Authority
JP
Japan
Prior art keywords
switching system
auxiliary switching
cpu
warning
secure
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
JP8706777A
Other languages
Japanese (ja)
Other versions
JPS5718212B2 (en
Inventor
Kenichiro Oda
Seiichiro Yamamoto
Hiromu Nakase
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 JP8706777A priority Critical patent/JPS5422134A/en
Publication of JPS5422134A publication Critical patent/JPS5422134A/en
Publication of JPS5718212B2 publication Critical patent/JPS5718212B2/ja
Granted legal-status Critical Current

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  • Hardware Redundancy (AREA)

Abstract

PURPOSE: To secure a smooth detection of the switching to the auxiliary unit by displaying a warning to the central operation table of CPU in case each input/output device features a different state from the current-use stage or the holding state which are set up to CPU.
COPYRIGHT: (C)1979,JPO&Japio
JP8706777A 1977-07-20 1977-07-20 Auxiliary switching system Granted JPS5422134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8706777A JPS5422134A (en) 1977-07-20 1977-07-20 Auxiliary switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8706777A JPS5422134A (en) 1977-07-20 1977-07-20 Auxiliary switching system

Publications (2)

Publication Number Publication Date
JPS5422134A true JPS5422134A (en) 1979-02-19
JPS5718212B2 JPS5718212B2 (en) 1982-04-15

Family

ID=13904587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8706777A Granted JPS5422134A (en) 1977-07-20 1977-07-20 Auxiliary switching system

Country Status (1)

Country Link
JP (1) JPS5422134A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60246455A (en) * 1984-05-22 1985-12-06 Fuji Electric Co Ltd Backup system of interface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60246455A (en) * 1984-05-22 1985-12-06 Fuji Electric Co Ltd Backup system of interface

Also Published As

Publication number Publication date
JPS5718212B2 (en) 1982-04-15

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