JPS5592901A - Safety device for control system - Google Patents

Safety device for control system

Info

Publication number
JPS5592901A
JPS5592901A JP16350878A JP16350878A JPS5592901A JP S5592901 A JPS5592901 A JP S5592901A JP 16350878 A JP16350878 A JP 16350878A JP 16350878 A JP16350878 A JP 16350878A JP S5592901 A JPS5592901 A JP S5592901A
Authority
JP
Japan
Prior art keywords
circuit
signal
dynamic signal
dynamic
safety
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
JP16350878A
Other languages
Japanese (ja)
Inventor
Shinichi Kobayashi
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.)
Toshiba Electric Appliances Co Ltd
Toshiba Denki Kigu KK
Original Assignee
Toshiba Electric Appliances Co Ltd
Toshiba Denki Kigu 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 Toshiba Electric Appliances Co Ltd, Toshiba Denki Kigu KK filed Critical Toshiba Electric Appliances Co Ltd
Priority to JP16350878A priority Critical patent/JPS5592901A/en
Publication of JPS5592901A publication Critical patent/JPS5592901A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing And Monitoring For Control Systems (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE:To improve the safety of an equipment by exercising a supervision over the pulse output state of a dynamic signal at any time by clock pulses of a computer and then by automatically stopping the operation of a controlled object or performing a safety process when a fault or other abnormal operation occurs. CONSTITUTION:According to a fixed program from control part 1, various-output circuit 2 is controlled and dynamic scan buffer 3 is driven. A dynamic signal from this buffer 3 and a signal from operation stop switch 7 are AND-ed by gate circuit 6 to send to the dynamic signal to selective operation circuit 4 and pulse detection circuit 8 receives a constant-period pulse signal. Operation stop circuit 9 is brought under the control of control part 1 invariably assigned by the dynamic signal from this circuit 4 to control gate circuit 10 when detection circuit 8 detects abnormal operation or malfunction, so that the operation stopping operation of a controlled object or safety process will be performed.
JP16350878A 1978-12-29 1978-12-29 Safety device for control system Pending JPS5592901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16350878A JPS5592901A (en) 1978-12-29 1978-12-29 Safety device for control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16350878A JPS5592901A (en) 1978-12-29 1978-12-29 Safety device for control system

Publications (1)

Publication Number Publication Date
JPS5592901A true JPS5592901A (en) 1980-07-14

Family

ID=15775189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16350878A Pending JPS5592901A (en) 1978-12-29 1978-12-29 Safety device for control system

Country Status (1)

Country Link
JP (1) JPS5592901A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6099930A (en) * 1983-11-07 1985-06-03 Matsushita Electric Ind Co Ltd Combustion control device
JPS62183202U (en) * 1986-05-12 1987-11-20
JPS6384602U (en) * 1986-11-19 1988-06-03

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6099930A (en) * 1983-11-07 1985-06-03 Matsushita Electric Ind Co Ltd Combustion control device
JPH02611B2 (en) * 1983-11-07 1990-01-08 Matsushita Electric Ind Co Ltd
JPS62183202U (en) * 1986-05-12 1987-11-20
JPS6384602U (en) * 1986-11-19 1988-06-03
JPH0447650Y2 (en) * 1986-11-19 1992-11-10

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