JPS54155702A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS54155702A
JPS54155702A JP6391478A JP6391478A JPS54155702A JP S54155702 A JPS54155702 A JP S54155702A JP 6391478 A JP6391478 A JP 6391478A JP 6391478 A JP6391478 A JP 6391478A JP S54155702 A JPS54155702 A JP S54155702A
Authority
JP
Japan
Prior art keywords
polling
memory
clocking
stored
troubling
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
JP6391478A
Other languages
Japanese (ja)
Inventor
Takamasa Koga
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 Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6391478A priority Critical patent/JPS54155702A/en
Publication of JPS54155702A publication Critical patent/JPS54155702A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40169—Flexible bus arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/403—Bus networks with centralised control, e.g. polling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To make it possible to transmit data efficiently with less constant time delay except data bound for a terminal getting out of order by stopping polling to the troubling terminal stored in a memory while a timer is clocking. CONSTITUTION:On recognizing a fault by polling to a control center side, time 12 of circuit interface 11 starts clocking for a constant time and memory 14 is stored with the states of terminals N1...Nn recognized by each polling. Then, polling to the troubling terminal stored in memory 14 such as N1 is stopped during the clocking of timer 12. Consequently, efficient data tramsmission to terminals N2...Nn can be attained with constant-time delay reduced.
JP6391478A 1978-05-30 1978-05-30 Data transmission system Pending JPS54155702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6391478A JPS54155702A (en) 1978-05-30 1978-05-30 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6391478A JPS54155702A (en) 1978-05-30 1978-05-30 Data transmission system

Publications (1)

Publication Number Publication Date
JPS54155702A true JPS54155702A (en) 1979-12-08

Family

ID=13243070

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6391478A Pending JPS54155702A (en) 1978-05-30 1978-05-30 Data transmission system

Country Status (1)

Country Link
JP (1) JPS54155702A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5684056A (en) * 1979-12-12 1981-07-09 Mitsubishi Electric Corp Data transmitting method
JPS56147208A (en) * 1980-03-24 1981-11-16 Goodrich Co B F Monitor device for monitoring occurrence of plulal events in circulating process and method therefor
JPS572146A (en) * 1980-06-04 1982-01-07 Hitachi Ltd Remote monitor control device
JPS5940743A (en) * 1982-08-31 1984-03-06 Yamatake Honeywell Co Ltd Communication system of process control system
JPS59127448A (en) * 1983-01-10 1984-07-23 Tokyo Electric Power Co Inc:The Data gathering system
JPS604345A (en) * 1983-06-22 1985-01-10 Mitsubishi Electric Corp Automatic linking system of data link system
JPS6046152A (en) * 1983-08-23 1985-03-12 Nec Corp Testing system of data communication circuit
JPS60233960A (en) * 1984-05-04 1985-11-20 Asics Corp Communication system for central equipment and plural terminal equipments
JPS6166435A (en) * 1984-09-10 1986-04-05 Matsushita Electric Ind Co Ltd Data collecting device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5684056A (en) * 1979-12-12 1981-07-09 Mitsubishi Electric Corp Data transmitting method
JPS56147208A (en) * 1980-03-24 1981-11-16 Goodrich Co B F Monitor device for monitoring occurrence of plulal events in circulating process and method therefor
JPS572146A (en) * 1980-06-04 1982-01-07 Hitachi Ltd Remote monitor control device
JPS6355257B2 (en) * 1980-06-04 1988-11-01 Hitachi Ltd
JPS5940743A (en) * 1982-08-31 1984-03-06 Yamatake Honeywell Co Ltd Communication system of process control system
JPS59127448A (en) * 1983-01-10 1984-07-23 Tokyo Electric Power Co Inc:The Data gathering system
JPS604345A (en) * 1983-06-22 1985-01-10 Mitsubishi Electric Corp Automatic linking system of data link system
JPS6046152A (en) * 1983-08-23 1985-03-12 Nec Corp Testing system of data communication circuit
JPS60233960A (en) * 1984-05-04 1985-11-20 Asics Corp Communication system for central equipment and plural terminal equipments
JPS6166435A (en) * 1984-09-10 1986-04-05 Matsushita Electric Ind Co Ltd Data collecting device

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