JPS55137746A - Anomaly decision system of data transmission system - Google Patents

Anomaly decision system of data transmission system

Info

Publication number
JPS55137746A
JPS55137746A JP4580079A JP4580079A JPS55137746A JP S55137746 A JPS55137746 A JP S55137746A JP 4580079 A JP4580079 A JP 4580079A JP 4580079 A JP4580079 A JP 4580079A JP S55137746 A JPS55137746 A JP S55137746A
Authority
JP
Japan
Prior art keywords
driver
receiver
test signal
agree
given
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
JP4580079A
Other languages
Japanese (ja)
Inventor
Seitaro Iwahashi
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
Application filed by Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP4580079A priority Critical patent/JPS55137746A/en
Publication of JPS55137746A publication Critical patent/JPS55137746A/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

Landscapes

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

Abstract

PURPOSE:To decide an abnormal state by connecting the output end of a driver and the input end of a receiver to a common bus only when the test signal lend out from the receiver and the test signal given to the driver agree with each other. CONSTITUTION:At a power supply time, test signal (e) is given to driver 11, and test signal (f) led out from receiver 12 and test signal e given to driver 11 are compared with each other in CPU 13 to decide whether they agree with each other. Only when they agree with each other, the output end of driver 11 and the input end of the receiver are connected to common bus 100. Consequently, when driver 11 and receiver 12 become abnormal, respective abnormal states can be decided without disconnection of terminal equipments 1-n from common bus 100.
JP4580079A 1979-04-14 1979-04-14 Anomaly decision system of data transmission system Pending JPS55137746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4580079A JPS55137746A (en) 1979-04-14 1979-04-14 Anomaly decision system of data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4580079A JPS55137746A (en) 1979-04-14 1979-04-14 Anomaly decision system of data transmission system

Publications (1)

Publication Number Publication Date
JPS55137746A true JPS55137746A (en) 1980-10-27

Family

ID=12729337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4580079A Pending JPS55137746A (en) 1979-04-14 1979-04-14 Anomaly decision system of data transmission system

Country Status (1)

Country Link
JP (1) JPS55137746A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57115058A (en) * 1981-01-08 1982-07-17 Chino Works Ltd Data transmission equipment
JPS58103250A (en) * 1981-12-15 1983-06-20 Nec Corp Data communication controller

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143733A (en) * 1974-10-09 1976-04-14 Kogyo Gijutsuin Futarusanjesuteruno seizohoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143733A (en) * 1974-10-09 1976-04-14 Kogyo Gijutsuin Futarusanjesuteruno seizohoho

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57115058A (en) * 1981-01-08 1982-07-17 Chino Works Ltd Data transmission equipment
JPS58103250A (en) * 1981-12-15 1983-06-20 Nec Corp Data communication controller

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