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JPS53145403A - Communication control device - Google Patents

Communication control device

Info

Publication number
JPS53145403A
JPS53145403A JP5974877A JP5974877A JPS53145403A JP S53145403 A JPS53145403 A JP S53145403A JP 5974877 A JP5974877 A JP 5974877A JP 5974877 A JP5974877 A JP 5974877A JP S53145403 A JPS53145403 A JP S53145403A
Authority
JP
Japan
Prior art keywords
control device
communication control
state
polling
securing
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.)
Granted
Application number
JP5974877A
Other languages
Japanese (ja)
Other versions
JPS568532B2 (en
Inventor
Kenji Shioda
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 JP5974877A priority Critical patent/JPS53145403A/en
Publication of JPS53145403A publication Critical patent/JPS53145403A/en
Publication of JPS568532B2 publication Critical patent/JPS568532B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Landscapes

  • Small-Scale Networks (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer And Data Communications (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To prevent the non-answer state to the central unit under a specified state of the terminal unit by securing an automatic answering to the polling and selecting.
JP5974877A 1977-05-25 1977-05-25 Communication control device Granted JPS53145403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5974877A JPS53145403A (en) 1977-05-25 1977-05-25 Communication control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5974877A JPS53145403A (en) 1977-05-25 1977-05-25 Communication control device

Publications (2)

Publication Number Publication Date
JPS53145403A true JPS53145403A (en) 1978-12-18
JPS568532B2 JPS568532B2 (en) 1981-02-24

Family

ID=13122157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5974877A Granted JPS53145403A (en) 1977-05-25 1977-05-25 Communication control device

Country Status (1)

Country Link
JP (1) JPS53145403A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169622A (en) * 1982-03-31 1983-10-06 Fujitsu Ltd Circuit control system
JPS6093847A (en) * 1983-10-27 1985-05-25 Fuji Electric Co Ltd Data exchange closing control system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222446A (en) * 1975-08-13 1977-02-19 Hitachi Ltd Response method of communication control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222446A (en) * 1975-08-13 1977-02-19 Hitachi Ltd Response method of communication control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169622A (en) * 1982-03-31 1983-10-06 Fujitsu Ltd Circuit control system
JPS6093847A (en) * 1983-10-27 1985-05-25 Fuji Electric Co Ltd Data exchange closing control system

Also Published As

Publication number Publication date
JPS568532B2 (en) 1981-02-24

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