GB2140941B - Data communication control system - Google Patents

Data communication control system

Info

Publication number
GB2140941B
GB2140941B GB08410277A GB8410277A GB2140941B GB 2140941 B GB2140941 B GB 2140941B GB 08410277 A GB08410277 A GB 08410277A GB 8410277 A GB8410277 A GB 8410277A GB 2140941 B GB2140941 B GB 2140941B
Authority
GB
United Kingdom
Prior art keywords
control system
data communication
communication control
data
control
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.)
Expired
Application number
GB08410277A
Other versions
GB2140941A (en
GB8410277D0 (en
Inventor
Hiromichi Matsumoto
Ritsuo Hashimoto
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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
Priority claimed from JP1991980A external-priority patent/JPS56116354A/en
Priority claimed from JP55032031A external-priority patent/JPS5936283B2/en
Application filed by Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Publication of GB8410277D0 publication Critical patent/GB8410277D0/en
Publication of GB2140941A publication Critical patent/GB2140941A/en
Application granted granted Critical
Publication of GB2140941B publication Critical patent/GB2140941B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0751—Error or fault detection not based on redundancy
    • G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
    • G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/22—Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
    • G06F13/4208—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a system bus, e.g. VME bus, Futurebus, Multibus
    • G06F13/4213—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a system bus, e.g. VME bus, Futurebus, Multibus with asynchronous protocol
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
    • G06F13/4221—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI bus
    • G06F13/4226—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI bus with asynchronous protocol

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Communication Control (AREA)
GB08410277A 1980-02-19 1984-04-19 Data communication control system Expired GB2140941B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1991980A JPS56116354A (en) 1980-02-19 1980-02-19 Failure monitor system
JP55032031A JPS5936283B2 (en) 1980-03-12 1980-03-12 Input/output control method

Publications (3)

Publication Number Publication Date
GB8410277D0 GB8410277D0 (en) 1984-05-31
GB2140941A GB2140941A (en) 1984-12-05
GB2140941B true GB2140941B (en) 1985-06-19

Family

ID=26356802

Family Applications (3)

Application Number Title Priority Date Filing Date
GB8105250A Expired GB2070302B (en) 1980-02-19 1981-02-19 Data communication system
GB08403732A Expired GB2140940B (en) 1980-02-19 1984-02-13 Data communication control system
GB08410277A Expired GB2140941B (en) 1980-02-19 1984-04-19 Data communication control system

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB8105250A Expired GB2070302B (en) 1980-02-19 1981-02-19 Data communication system
GB08403732A Expired GB2140940B (en) 1980-02-19 1984-02-13 Data communication control system

Country Status (1)

Country Link
GB (3) GB2070302B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127190B (en) * 1982-09-06 1986-09-24 Tycom Corp Limited Small computer
JPS59127133A (en) * 1983-01-11 1984-07-21 Minolta Camera Co Ltd Data transmitting system
GB2192739B (en) * 1986-07-18 1991-02-13 Intel Corp Selective input/output port protection
US5146565A (en) * 1986-07-18 1992-09-08 Intel Corporation I/O Control system having a plurality of access enabling bits for controlling access to selective ports of an I/O device
GB2197507A (en) * 1986-11-03 1988-05-18 Philips Electronic Associated Data processing system
US4975914A (en) * 1989-01-24 1990-12-04 International Business Machines Corporation Non-disruptive session recovery
EP0625751A1 (en) * 1993-05-14 1994-11-23 Siemens Aktiengesellschaft Method of transmitting safe information on a bus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573740A (en) * 1968-07-03 1971-04-06 Ncr Co Communication multiplexer for online data transmission
US3623013A (en) * 1969-08-13 1971-11-23 Burroughs Corp Data processing network and improved terminal
CA929248A (en) * 1970-07-27 1973-06-26 E. Knowles John Line tracing apparatus
US3866175A (en) * 1974-04-24 1975-02-11 Ncr Co Data communication system between a central computer and a plurality of data terminals

Also Published As

Publication number Publication date
GB2070302A (en) 1981-09-03
GB2140941A (en) 1984-12-05
GB2070302B (en) 1985-02-13
GB8410277D0 (en) 1984-05-31
GB2140940A (en) 1984-12-05
GB2140940B (en) 1985-06-19
GB8403732D0 (en) 1984-03-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930219