JPS5725002A - Contol device using microcomputer - Google Patents

Contol device using microcomputer

Info

Publication number
JPS5725002A
JPS5725002A JP17820680A JP17820680A JPS5725002A JP S5725002 A JPS5725002 A JP S5725002A JP 17820680 A JP17820680 A JP 17820680A JP 17820680 A JP17820680 A JP 17820680A JP S5725002 A JPS5725002 A JP S5725002A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
computer
microcomputer
timer
initial state
pulse
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
JP17820680A
Inventor
Kazuhiro Suzuki
Original Assignee
Yokogawa Hokushin Electric Corp
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

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00Safety arrangements
    • G05B9/02Safety arrangements electric

Abstract

PURPOSE:To make it unnecessary that an operator always takes care of a microcomputer, by detecting its fault automatically, and automatically returning the computer to an initial state by its detection output. CONSTITUTION:In a timer 5 consisting of a counter, in case when operation of a microcomputer 1 has stopped or caused looping, a reset signal comes not be outputted. As a result, the timer 5 overflows, the overflow signal is supplied to, for instance, a pulse generator 6 such as a monostable multivibrator, and a pulse is generated. The computer 1 is returned to its initial state by providing said pulse to the computer 1 through an OR circuit 4. In this case, when the timer 5 turns on an electric power source switch 2, an initialize signal which is outputted from an initialize signal generator 3 is supplied through an OR circuit 7, and the computer 1 is returned to its initial state.
JP17820680A 1980-12-17 1980-12-17 Contol device using microcomputer Pending JPS5725002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17820680A JPS5725002A (en) 1980-12-17 1980-12-17 Contol device using microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17820680A JPS5725002A (en) 1980-12-17 1980-12-17 Contol device using microcomputer

Publications (1)

Publication Number Publication Date
JPS5725002A true true JPS5725002A (en) 1982-02-09

Family

ID=16044426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17820680A Pending JPS5725002A (en) 1980-12-17 1980-12-17 Contol device using microcomputer

Country Status (1)

Country Link
JP (1) JPS5725002A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935202A (en) * 1982-07-23 1984-02-25 Bosch Gmbh Robert Emergency operator for equipment system controlled with microcomputer
JPS59158402A (en) * 1983-02-28 1984-09-07 Matsushita Electric Works Ltd System control circuit device
JPS6015702A (en) * 1983-07-07 1985-01-26 Tokai Rika Co Ltd Malfunction preventing method of load controller
JPS6184902U (en) * 1984-11-08 1986-06-04
JPH0356391A (en) * 1989-07-21 1991-03-11 Hitachi Ltd Passenger conveyor control device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935202A (en) * 1982-07-23 1984-02-25 Bosch Gmbh Robert Emergency operator for equipment system controlled with microcomputer
JPS59158402A (en) * 1983-02-28 1984-09-07 Matsushita Electric Works Ltd System control circuit device
JPH0348521B2 (en) * 1983-02-28 1991-07-24 Matsushita Electric Works Ltd
JPS6015702A (en) * 1983-07-07 1985-01-26 Tokai Rika Co Ltd Malfunction preventing method of load controller
JPS6184902U (en) * 1984-11-08 1986-06-04
JPH0356391A (en) * 1989-07-21 1991-03-11 Hitachi Ltd Passenger conveyor control device

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