JPS5713520A - Self-diagnostic device - Google Patents

Self-diagnostic device

Info

Publication number
JPS5713520A
JPS5713520A JP8841680A JP8841680A JPS5713520A JP S5713520 A JPS5713520 A JP S5713520A JP 8841680 A JP8841680 A JP 8841680A JP 8841680 A JP8841680 A JP 8841680A JP S5713520 A JPS5713520 A JP S5713520A
Authority
JP
Japan
Prior art keywords
mucm5
turns
self
case
regular
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
JP8841680A
Other languages
Japanese (ja)
Inventor
Yukiji Mori
Akira Shibata
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP8841680A priority Critical patent/JPS5713520A/en
Publication of JPS5713520A publication Critical patent/JPS5713520A/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

Abstract

PURPOSE:To inspect an operation of load, and an input signal in a short time and exactly, by making a self-diagnostic program run separately from a regular program, by a signal of a test switch which has been provided on the outside of a product. CONSTITUTION:When an AC 100V 6 is connected to a product 1 which has been provided with a microcomputer muCM5, voltage Vcc develops, and the muCM5 starts its operation. When a TST7 is turned on, the voltage Vcc is supplied to an input terminal I1 of the muCM5 the muCM5 decides the test switch (TSW) 7 two times through the terminal I1, stops a regular operation mode ad enters a self-diagnostic program PG only in case when the TSW7 is turned on both two times. The self- diagnostic program (PG) permits a timer interruption, and after that, turns on an output terminal O1 only for (t) seconds of a constant time, subsequently turns on and off terminals O2-O8 in the same way, and after that, decides whether a SW8 is on or not, turns on an LED LE1 in case of on, and turns off the LE1 in case of off. Rhe subsequent operation is executed in the same way, and at the time when an inspection of the final SW has been finished, whether only a constant time T has elapsed or not is decided, and when it has elapsed, a regular routine is made to run automarically.
JP8841680A 1980-06-27 1980-06-27 Self-diagnostic device Pending JPS5713520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8841680A JPS5713520A (en) 1980-06-27 1980-06-27 Self-diagnostic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8841680A JPS5713520A (en) 1980-06-27 1980-06-27 Self-diagnostic device

Publications (1)

Publication Number Publication Date
JPS5713520A true JPS5713520A (en) 1982-01-23

Family

ID=13942182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8841680A Pending JPS5713520A (en) 1980-06-27 1980-06-27 Self-diagnostic device

Country Status (1)

Country Link
JP (1) JPS5713520A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61175578A (en) * 1985-01-30 1986-08-07 Hino Motors Ltd Controlling device for automobile
JPH01196519A (en) * 1987-12-10 1989-08-08 Webasto Ag Fahrzeugtechinik Method and apparatus for testing operating component within heater
JPH0231912A (en) * 1988-07-22 1990-02-01 Diesel Kiki Co Ltd Trouble diagnosis device for vehicle air conditioner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250491A (en) * 1975-10-20 1977-04-22 Hitachi Ltd Sequence control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250491A (en) * 1975-10-20 1977-04-22 Hitachi Ltd Sequence control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61175578A (en) * 1985-01-30 1986-08-07 Hino Motors Ltd Controlling device for automobile
JPH01196519A (en) * 1987-12-10 1989-08-08 Webasto Ag Fahrzeugtechinik Method and apparatus for testing operating component within heater
JPH0231912A (en) * 1988-07-22 1990-02-01 Diesel Kiki Co Ltd Trouble diagnosis device for vehicle air conditioner

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