JPS54109588A - Control state reproducing system - Google Patents

Control state reproducing system

Info

Publication number
JPS54109588A
JPS54109588A JP1780078A JP1780078A JPS54109588A JP S54109588 A JPS54109588 A JP S54109588A JP 1780078 A JP1780078 A JP 1780078A JP 1780078 A JP1780078 A JP 1780078A JP S54109588 A JPS54109588 A JP S54109588A
Authority
JP
Japan
Prior art keywords
control
output
self
logical circuit
circuit
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
JP1780078A
Other languages
Japanese (ja)
Inventor
Keizo Murakami
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1780078A priority Critical patent/JPS54109588A/en
Publication of JPS54109588A publication Critical patent/JPS54109588A/en
Pending legal-status Critical Current

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  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE: To provide the subject system which is constituted such that the relay circuit output self-holding the controlled state of a control logical circuit is taken into the control logical circuit at the time of restoring power source troubles, thereby easily performing the continuance of the control action.
CONSTITUTION: A control logical circuit 2 produces a predetermined output as a control output 4 by a control input signal 1 through a self-holding relay 3. Accordingly, since at the time of service interruption the output of the self-holding relay 4 does not extinguish, the control operation is continued. Since, at the time of restoring serives interruption, the content of the control logical circuit 2 is not constant, and hence it is not restored as it is. However, since the output of the self-holding relay 3 is connected thereto and restored to the state immediately before the service interruption, it does not take erroneous action even when the circuit is reopened.
COPYRIGHT: (C)1979,JPO&Japio
JP1780078A 1978-02-17 1978-02-17 Control state reproducing system Pending JPS54109588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1780078A JPS54109588A (en) 1978-02-17 1978-02-17 Control state reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1780078A JPS54109588A (en) 1978-02-17 1978-02-17 Control state reproducing system

Publications (1)

Publication Number Publication Date
JPS54109588A true JPS54109588A (en) 1979-08-28

Family

ID=11953780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1780078A Pending JPS54109588A (en) 1978-02-17 1978-02-17 Control state reproducing system

Country Status (1)

Country Link
JP (1) JPS54109588A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5895943A (en) * 1981-12-02 1983-06-07 オムロン株式会社 Reactive power amount controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5895943A (en) * 1981-12-02 1983-06-07 オムロン株式会社 Reactive power amount controller

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