JPS57183152A - Controller for data way system - Google Patents
Controller for data way systemInfo
- 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
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.
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)
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 |
-
1981
- 1981-05-07 JP JP56068554A patent/JPS57183152A/en active Pending
Cited By (3)
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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