JPS57183152A - Controller for data way system - Google Patents

Controller for data way system

Info

Publication number
JPS57183152A
JPS57183152A JP56068554A JP6855481A JPS57183152A JP S57183152 A JPS57183152 A JP S57183152A JP 56068554 A JP56068554 A JP 56068554A JP 6855481 A JP6855481 A JP 6855481A JP S57183152 A JPS57183152 A JP S57183152A
Authority
JP
Japan
Prior art keywords
computer
master station
station
fault
address
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
JP56068554A
Other languages
Japanese (ja)
Inventor
Hisashi Morotomi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56068554A priority Critical patent/JPS57183152A/en
Publication of JPS57183152A publication Critical patent/JPS57183152A/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]
    • H04L12/42—Loop networks

Landscapes

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

Abstract

PURPOSE:To realize a backup system for a master station fault easily by giving a master station plural addresses, and providing a means by which the master station selects them by itself. CONSTITUTION:If a computer 1a functioning as a master station is shut down, a computer 1b acquires the rights of the master station and, while setting the address 2a of the computer 1a in its own address register 6b, disconnects the shut-down computer 1a from a transmission line. Each subordinate station 4, on the other hand, transmits data together with the added address of the computer 1a as usual without knowing that the computer 1a is shut down, but the computer 1a is disconnected from the transmission line already and the data is received and processed by said substitute master station (computer) 1b. Therefore, even if the master station has a fault, each subordinate station 4 transmits data to the master station under no influence of the fault.
JP56068554A 1981-05-07 1981-05-07 Controller for data way system Pending JPS57183152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56068554A JPS57183152A (en) 1981-05-07 1981-05-07 Controller for data way system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56068554A JPS57183152A (en) 1981-05-07 1981-05-07 Controller for data way system

Publications (1)

Publication Number Publication Date
JPS57183152A true JPS57183152A (en) 1982-11-11

Family

ID=13377090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56068554A Pending JPS57183152A (en) 1981-05-07 1981-05-07 Controller for data way system

Country Status (1)

Country Link
JP (1) JPS57183152A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6014552A (en) * 1983-07-05 1985-01-25 Hitachi Ltd Communication line controller
JPS6364432A (en) * 1986-09-04 1988-03-22 Aida Eng Ltd District communication equipment
JP2000115216A (en) * 1998-10-09 2000-04-21 Toshiba Corp Information communication system and network supervisory controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6014552A (en) * 1983-07-05 1985-01-25 Hitachi Ltd Communication line controller
JPS6364432A (en) * 1986-09-04 1988-03-22 Aida Eng Ltd District communication equipment
JP2000115216A (en) * 1998-10-09 2000-04-21 Toshiba Corp Information communication system and network supervisory controller

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