JPS54158104A - Multiple polling system - Google Patents

Multiple polling system

Info

Publication number
JPS54158104A
JPS54158104A JP6712378A JP6712378A JPS54158104A JP S54158104 A JPS54158104 A JP S54158104A JP 6712378 A JP6712378 A JP 6712378A JP 6712378 A JP6712378 A JP 6712378A JP S54158104 A JPS54158104 A JP S54158104A
Authority
JP
Japan
Prior art keywords
station
circuit
tributary
control
sequence
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
JP6712378A
Other languages
Japanese (ja)
Inventor
Masumi Ozawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6712378A priority Critical patent/JPS54158104A/en
Publication of JPS54158104A publication Critical patent/JPS54158104A/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
    • H04L12/403—Bus networks with centralised control, e.g. polling

Abstract

PURPOSE:To secure the control for the polling sequence at the tributary station by providing the multiple polling sequence sending circuit and the timer circuit at the control station as well as the attention sending circuit and the timer circuit at the tributary station respectively. CONSTITUTION:Control station 10 transmits 21 the multiple polling of the full station designation to tributary stations #1, #2... #n which are connected to station 10 and then starts timer 24. While tributary stations #<1>1...#n receive the multiple polling to start timer circuit 30, and circuit part 39 transmits the attention sequence when the announcement telling existence of the data is given to transmission circuit 39 from control part 38. And in case the data generated at the tributray station side requests the priority process, the priority request bit within the attention sequence is turned on. Thus, the control can be given for the polling sequence at the tributary station.
JP6712378A 1978-06-02 1978-06-02 Multiple polling system Pending JPS54158104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6712378A JPS54158104A (en) 1978-06-02 1978-06-02 Multiple polling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6712378A JPS54158104A (en) 1978-06-02 1978-06-02 Multiple polling system

Publications (1)

Publication Number Publication Date
JPS54158104A true JPS54158104A (en) 1979-12-13

Family

ID=13335800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6712378A Pending JPS54158104A (en) 1978-06-02 1978-06-02 Multiple polling system

Country Status (1)

Country Link
JP (1) JPS54158104A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182341A (en) * 1982-04-19 1983-10-25 Chino Works Ltd Data transmitter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182341A (en) * 1982-04-19 1983-10-25 Chino Works Ltd Data transmitter
JPH0214824B2 (en) * 1982-04-19 1990-04-10 Chino Corp

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