JPS58151743A - Polling system - Google Patents

Polling system

Info

Publication number
JPS58151743A
JPS58151743A JP3385382A JP3385382A JPS58151743A JP S58151743 A JPS58151743 A JP S58151743A JP 3385382 A JP3385382 A JP 3385382A JP 3385382 A JP3385382 A JP 3385382A JP S58151743 A JPS58151743 A JP S58151743A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
polling
stations
order
station
services
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
JP3385382A
Inventor
Takashi Urata
Original Assignee
Hitachi 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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
    • H04L12/40Bus networks
    • H04L12/403Bus networks with centralised control, e.g. polling

Abstract

PURPOSE:To ensure the uniform services to all stations, by changing a station address with which the polling is started for each polling period. CONSTITUTION:The slave work stations 1-8 are connected to a master work station 10 via a serial interface connecting cable 9. A processing buffer 11 is provided within the station 10 to accept an input request. The buffer 11 is shared by all stations. The queuing cases for the input request are increased for the station that receives services in the latter half of the polling. Therefore the polling is started from an SS8 for the 2nd polling period in case the polling is carried out in order of SS1-SS8 in the 1st polling period. Thus other stations are delayed by an order respectively. Hereafter the order is changed in the same way until the 8th polling in order to ensure the uniform services.
JP3385382A 1982-03-05 1982-03-05 Polling system Pending JPS58151743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3385382A JPS58151743A (en) 1982-03-05 1982-03-05 Polling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3385382A JPS58151743A (en) 1982-03-05 1982-03-05 Polling system

Publications (1)

Publication Number Publication Date
JPS58151743A true true JPS58151743A (en) 1983-09-09

Family

ID=12398059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3385382A Pending JPS58151743A (en) 1982-03-05 1982-03-05 Polling system

Country Status (1)

Country Link
JP (1) JPS58151743A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4575846A (en) * 1982-10-08 1986-03-11 Canon Kabushiki Kaisha Data communication system
JPS62147834A (en) * 1985-12-23 1987-07-01 Matsushita Electric Works Ltd Time division multiplex transmission system
JPS62147835A (en) * 1985-12-23 1987-07-01 Matsushita Electric Works Ltd Time division multiplex transmission system
JPS62235839A (en) * 1986-03-26 1987-10-16 Tandem Computers Inc Changeable i/o priority selector
JPH01292930A (en) * 1988-05-20 1989-11-27 Fujitsu Ltd Priority system for polling
JPH03209944A (en) * 1989-05-19 1991-09-12 Omron Corp Communication network system by fuzzy control

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4575846A (en) * 1982-10-08 1986-03-11 Canon Kabushiki Kaisha Data communication system
JPS62147834A (en) * 1985-12-23 1987-07-01 Matsushita Electric Works Ltd Time division multiplex transmission system
JPS62147835A (en) * 1985-12-23 1987-07-01 Matsushita Electric Works Ltd Time division multiplex transmission system
JPH0746806B2 (en) * 1985-12-23 1995-05-17 松下電工株式会社 Time division multiplex transmission system
JPH0746807B2 (en) * 1985-12-23 1995-05-17 松下電工株式会社 Time division multiplex transmission system
JPS62235839A (en) * 1986-03-26 1987-10-16 Tandem Computers Inc Changeable i/o priority selector
JPH01292930A (en) * 1988-05-20 1989-11-27 Fujitsu Ltd Priority system for polling
JPH088577B2 (en) * 1988-05-20 1996-01-29 富士通株式会社 Polling priority method and a data transmission device
JPH03209944A (en) * 1989-05-19 1991-09-12 Omron Corp Communication network system by fuzzy control
JPH0771094B2 (en) * 1989-05-19 1995-07-31 オムロン株式会社 Communication network system

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