JPS54157452A - System checking system - Google Patents

System checking system

Info

Publication number
JPS54157452A
JPS54157452A JP6583678A JP6583678A JPS54157452A JP S54157452 A JPS54157452 A JP S54157452A JP 6583678 A JP6583678 A JP 6583678A JP 6583678 A JP6583678 A JP 6583678A JP S54157452 A JPS54157452 A JP S54157452A
Authority
JP
Japan
Prior art keywords
test
units
circuits
terminal unit
terminal
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
JP6583678A
Other languages
Japanese (ja)
Inventor
Takeo Tajima
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 Denshi KK
Original Assignee
Hitachi Denshi KK
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 Denshi KK filed Critical Hitachi Denshi KK
Priority to JP6583678A priority Critical patent/JPS54157452A/en
Publication of JPS54157452A publication Critical patent/JPS54157452A/en
Pending legal-status Critical Current

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  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE: To ensure the test and repair for the faulty terminal unit without stopping the operation of the entire system for the mimic practice unit which actuates plural units of terminal units by providing the change-over switch to connect the arithmetic circuit for test and the terminal unit when testing the terminal unit.
CONSTITUTION: In the mimic practice unit to actuate terminal units 31W3n, arithmetic process circuits 21W2n connected to control circuit 1 which gives the command to each terminal unit are provided, along with testing arithmetic circuits 41W4n to give the test to each terminal unit in connection to circuit 1. Then change- over switches 51W5n are connected between units 31W3n, circuits 21W2n and circuits 41W4n each to be operated when the test is given. Thus, the test and repair can be given to the faulty ones among units 31W3n without stopping the operation of the entire system.
COPYRIGHT: (C)1979,JPO&Japio
JP6583678A 1978-06-02 1978-06-02 System checking system Pending JPS54157452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6583678A JPS54157452A (en) 1978-06-02 1978-06-02 System checking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6583678A JPS54157452A (en) 1978-06-02 1978-06-02 System checking system

Publications (1)

Publication Number Publication Date
JPS54157452A true JPS54157452A (en) 1979-12-12

Family

ID=13298492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6583678A Pending JPS54157452A (en) 1978-06-02 1978-06-02 System checking system

Country Status (1)

Country Link
JP (1) JPS54157452A (en)

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