JPS521386A - Abnormal detecting device of a distant monitor controller - Google Patents

Abnormal detecting device of a distant monitor controller

Info

Publication number
JPS521386A
JPS521386A JP7687975A JP7687975A JPS521386A JP S521386 A JPS521386 A JP S521386A JP 7687975 A JP7687975 A JP 7687975A JP 7687975 A JP7687975 A JP 7687975A JP S521386 A JPS521386 A JP S521386A
Authority
JP
Japan
Prior art keywords
detecting device
monitor controller
abnormal detecting
distant monitor
distant
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
JP7687975A
Other languages
Japanese (ja)
Inventor
Toshio Ozawa
Kazuhiko 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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7687975A priority Critical patent/JPS521386A/en
Publication of JPS521386A publication Critical patent/JPS521386A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:The abnormality of the selective relay contact itself directly connected with an apparatus is detected in case of normal non-control, beforehand preventing the false control of the control circuit.
JP7687975A 1975-06-24 1975-06-24 Abnormal detecting device of a distant monitor controller Pending JPS521386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7687975A JPS521386A (en) 1975-06-24 1975-06-24 Abnormal detecting device of a distant monitor controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7687975A JPS521386A (en) 1975-06-24 1975-06-24 Abnormal detecting device of a distant monitor controller

Publications (1)

Publication Number Publication Date
JPS521386A true JPS521386A (en) 1977-01-07

Family

ID=13617904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7687975A Pending JPS521386A (en) 1975-06-24 1975-06-24 Abnormal detecting device of a distant monitor controller

Country Status (1)

Country Link
JP (1) JPS521386A (en)

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