JPS5671111A - Control operation monitor system - Google Patents

Control operation monitor system

Info

Publication number
JPS5671111A
JPS5671111A JP14790679A JP14790679A JPS5671111A JP S5671111 A JPS5671111 A JP S5671111A JP 14790679 A JP14790679 A JP 14790679A JP 14790679 A JP14790679 A JP 14790679A JP S5671111 A JPS5671111 A JP S5671111A
Authority
JP
Japan
Prior art keywords
signal
controlled
timer
output
reset
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
JP14790679A
Other languages
Japanese (ja)
Inventor
Kazuhiko Akata
Kazuyuki Masuo
Tomihide Seo
Hiroshi Dewa
Tomoyoshi Fukushima
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.)
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric 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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP14790679A priority Critical patent/JPS5671111A/en
Publication of JPS5671111A publication Critical patent/JPS5671111A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To detect anomaly of the control system and the system to be controlled, by monitoring the output of the timer which is reset when commands are issued from the control system to the system to be controlled and when the execution completion signal is returned from the system to be controlled. CONSTITUTION:Control information 11 and status signal 12 are sent from control system 1 to system 2 to be controlled, and return information 13 and return reporting signal 14 are sent from system 2 at the execution completion time. Timer 3 is reset by the OR signal between status signal 12 and reporting signal 14 and starts counting again. Preset value M is set simultaneously with inputting of the status signal. Signal 16 is output when counter 5 in the timer overflows, and anomaly of system 1 or system 2 is decided by system monitor part 7 to output operation mode switching signals 19 and 20.
JP14790679A 1979-11-15 1979-11-15 Control operation monitor system Pending JPS5671111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14790679A JPS5671111A (en) 1979-11-15 1979-11-15 Control operation monitor system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14790679A JPS5671111A (en) 1979-11-15 1979-11-15 Control operation monitor system

Publications (1)

Publication Number Publication Date
JPS5671111A true JPS5671111A (en) 1981-06-13

Family

ID=15440793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14790679A Pending JPS5671111A (en) 1979-11-15 1979-11-15 Control operation monitor system

Country Status (1)

Country Link
JP (1) JPS5671111A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60239803A (en) * 1984-05-15 1985-11-28 Yokogawa Hokushin Electric Corp Dispersion type control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60239803A (en) * 1984-05-15 1985-11-28 Yokogawa Hokushin Electric Corp Dispersion type control system

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