JPS5583917A - Two-way data transfer system between plural units - Google Patents
Two-way data transfer system between plural unitsInfo
- Publication number
- JPS5583917A JPS5583917A JP15878178A JP15878178A JPS5583917A JP S5583917 A JPS5583917 A JP S5583917A JP 15878178 A JP15878178 A JP 15878178A JP 15878178 A JP15878178 A JP 15878178A JP S5583917 A JPS5583917 A JP S5583917A
- Authority
- JP
- Japan
- Prior art keywords
- transmitted
- units
- data transfer
- way data
- leading word
- 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
Links
Landscapes
- Information Transfer Systems (AREA)
- Small-Scale Networks (AREA)
- Communication Control (AREA)
Abstract
PURPOSE: To always transmit the leading word first in case the information is transmitted to each input/output device from the channel, thus securing the simple identification for each input/output device whether the reception information is the up- of down-telegram by the presence or absence of the word.
CONSTITUTION: Like 1st control unit 2 possessing a set of the receiver and the driver, plural number of 2nd control unit 3Wn possessing a set of the receiver and the driver each are connected to common transmission line L0. The two-way data transfer is carried out among these control units. The leading word detector is provided to units 3Wn, and thus the leading word is first transmitted in case the information is transmitted from unit 2 to units 3Wn. After this, the command or data is transmitted, and at the same time the lead is detected via the leading word detector to receive the command.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15878178A JPS5583917A (en) | 1978-12-19 | 1978-12-19 | Two-way data transfer system between plural units |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15878178A JPS5583917A (en) | 1978-12-19 | 1978-12-19 | Two-way data transfer system between plural units |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5583917A true JPS5583917A (en) | 1980-06-24 |
Family
ID=15679183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15878178A Pending JPS5583917A (en) | 1978-12-19 | 1978-12-19 | Two-way data transfer system between plural units |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5583917A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5742251A (en) * | 1980-08-26 | 1982-03-09 | Mitsubishi Electric Corp | Data transmission system |
JPS57113660A (en) * | 1980-12-29 | 1982-07-15 | Fujitsu Ltd | Common bus communication system |
JPS5971527A (en) * | 1982-01-15 | 1984-04-23 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Computer system |
JPS59500841A (en) * | 1982-05-07 | 1984-05-10 | テレフオンアクチ−ボラゲツト エル エム エリクソン | digital communication system |
-
1978
- 1978-12-19 JP JP15878178A patent/JPS5583917A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5742251A (en) * | 1980-08-26 | 1982-03-09 | Mitsubishi Electric Corp | Data transmission system |
JPS57113660A (en) * | 1980-12-29 | 1982-07-15 | Fujitsu Ltd | Common bus communication system |
JPS5971527A (en) * | 1982-01-15 | 1984-04-23 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Computer system |
JPS6126102B2 (en) * | 1982-01-15 | 1986-06-19 | Intaanashonaru Bijinesu Mashiinzu Corp | |
JPS59500841A (en) * | 1982-05-07 | 1984-05-10 | テレフオンアクチ−ボラゲツト エル エム エリクソン | digital communication system |
JPH0432577B2 (en) * | 1982-05-07 | 1992-05-29 |
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