JPS5459844A - Data transmission device - Google Patents
Data transmission deviceInfo
- Publication number
- JPS5459844A JPS5459844A JP12576577A JP12576577A JPS5459844A JP S5459844 A JPS5459844 A JP S5459844A JP 12576577 A JP12576577 A JP 12576577A JP 12576577 A JP12576577 A JP 12576577A JP S5459844 A JPS5459844 A JP S5459844A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- transmission
- computer
- control
- carried out
- 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
- Communication Control (AREA)
Abstract
PURPOSE: To increase the responsibility without lowering the process effect to the computer by providing within the computer or the master transmission control unit the control memory and its corresponding data memory and then giving the commands to the control memory for the periodic transmission as well as the one- shot transmission.
CONSTITUTION: Both control ward memory CWM and data memory DTM are provided within master transmission control unit MS, so that the reading or writing is possible through both computer CMP and transmission control part TCU. Memory CWM and DTM are composed of the identical number of blocks each, and blocks COWCn within control memory are correlated with block DOWDn within data memory. At the same time, the transmission is carried out periodically by the command for periodical transmission set to memory CMD. The computer performs reading and writing of the input and output data when necessary to increase the process efficiency. Furthermore, the periodic transmission so far carried out is discontinued by the command of the one-shot transmission set to memory CMD, and the action designated by the block is carried out to enhance the responsibility
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12576577A JPS5459844A (en) | 1977-10-21 | 1977-10-21 | Data transmission device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12576577A JPS5459844A (en) | 1977-10-21 | 1977-10-21 | Data transmission device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5459844A true JPS5459844A (en) | 1979-05-14 |
Family
ID=14918261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12576577A Pending JPS5459844A (en) | 1977-10-21 | 1977-10-21 | Data transmission device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5459844A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56125173U (en) * | 1980-02-25 | 1981-09-24 |
-
1977
- 1977-10-21 JP JP12576577A patent/JPS5459844A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56125173U (en) * | 1980-02-25 | 1981-09-24 |
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