JPS6481547A - Duplication system for station - Google Patents

Duplication system for station

Info

Publication number
JPS6481547A
JPS6481547A JP23920787A JP23920787A JPS6481547A JP S6481547 A JPS6481547 A JP S6481547A JP 23920787 A JP23920787 A JP 23920787A JP 23920787 A JP23920787 A JP 23920787A JP S6481547 A JPS6481547 A JP S6481547A
Authority
JP
Japan
Prior art keywords
flag
station
frame
reception
address
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
JP23920787A
Other languages
Japanese (ja)
Inventor
Takeshi Murata
Koji Takatomi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP23920787A priority Critical patent/JPS6481547A/en
Publication of JPS6481547A publication Critical patent/JPS6481547A/en
Pending legal-status Critical Current

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  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To improve the reliability of an important line by adding a transmission flag and a reception flag to a frame, sending the result so as to attain the presence of plural stations having one and same station addresses on the transmission line. CONSTITUTION:The transmission flag and the reception flag are added to the frame and one and same station address is added to a predetermined station, a control station sets the sender and destination station address, the flag is made ineffective and sends the result to the transmission line. On the other hand, each station is provided with an address/flag detection means 5, a flag state operation means 6 and a select means 1 and when the station address of sender or destination in the reception frame is coincident with the station address of its own station and the corresponding flag is effective, the flag is made ineffective, the data to be sent is inserted to the reception frame or after the data of the reception frame is fetched, it is sent to the transmission line.
JP23920787A 1987-09-24 1987-09-24 Duplication system for station Pending JPS6481547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23920787A JPS6481547A (en) 1987-09-24 1987-09-24 Duplication system for station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23920787A JPS6481547A (en) 1987-09-24 1987-09-24 Duplication system for station

Publications (1)

Publication Number Publication Date
JPS6481547A true JPS6481547A (en) 1989-03-27

Family

ID=17041330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23920787A Pending JPS6481547A (en) 1987-09-24 1987-09-24 Duplication system for station

Country Status (1)

Country Link
JP (1) JPS6481547A (en)

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