JPS6481545A - Communication control method for loop transmission system - Google Patents

Communication control method for loop transmission system

Info

Publication number
JPS6481545A
JPS6481545A JP62239187A JP23918787A JPS6481545A JP S6481545 A JPS6481545 A JP S6481545A JP 62239187 A JP62239187 A JP 62239187A JP 23918787 A JP23918787 A JP 23918787A JP S6481545 A JPS6481545 A JP S6481545A
Authority
JP
Japan
Prior art keywords
terminal
terminal equipment
send
transmission line
master station
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
JP62239187A
Other languages
Japanese (ja)
Inventor
Futoshi Yanagiya
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP62239187A priority Critical patent/JPS6481545A/en
Publication of JPS6481545A publication Critical patent/JPS6481545A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To reduce the communication time with all terminal equipments by allowing a master station to send a terminal confirmation communication command in advance and designating a terminal equipment only on a transmission line in the order of acknowledge signals from terminal equipments and allowing the terminal equipment to send a data as the normal communication. CONSTITUTION:The master station 1 sends in advance a terminal confirmation communication command, allows terminal equipments 22-26 to send an acknowledge signal respectively after a time in response to the size of each terminal equipment address elapses to grasp the address of the terminal equipments 22-26 on the transmission line 7. After the normal communication command is sent from the master station 1, a virtual terminal equipment address or the like is used, only the terminal equipment on the transmission line in the order of transmission of the acknowledge signal is designated to send the data as the normal communication. Thus, since the terminal equipment not connected and the master station 1 are not communicated in the loop transmission line 7, the communication time with all terminal equipments is reduced.
JP62239187A 1987-09-24 1987-09-24 Communication control method for loop transmission system Pending JPS6481545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62239187A JPS6481545A (en) 1987-09-24 1987-09-24 Communication control method for loop transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62239187A JPS6481545A (en) 1987-09-24 1987-09-24 Communication control method for loop transmission system

Publications (1)

Publication Number Publication Date
JPS6481545A true JPS6481545A (en) 1989-03-27

Family

ID=17041009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62239187A Pending JPS6481545A (en) 1987-09-24 1987-09-24 Communication control method for loop transmission system

Country Status (1)

Country Link
JP (1) JPS6481545A (en)

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