JPS6478546A - Polling system - Google Patents
Polling systemInfo
- Publication number
- JPS6478546A JPS6478546A JP62234807A JP23480787A JPS6478546A JP S6478546 A JPS6478546 A JP S6478546A JP 62234807 A JP62234807 A JP 62234807A JP 23480787 A JP23480787 A JP 23480787A JP S6478546 A JPS6478546 A JP S6478546A
- Authority
- JP
- Japan
- Prior art keywords
- transmission speed
- controller
- address
- terminal
- transmits
- 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
- Small-Scale Networks (AREA)
Abstract
PURPOSE:To allow respective terminal equipments to achieve best performance by sending polling commands by the transmission speed switching circuit of a terminal controller at a transmission speed inherent to the terminal equipment, and receiving response commands. CONSTITUTION:The controller 7 makes a terminal equipment address to (00)16, reads out transmission speed information (f) in the address (00)16 from a table 8, and transmits it to the transmission speed switching circuit 5 as a transmission speed signal. After ending the setting of transmission speed, the controller 7 transmits the address (00)16 to a data processing part 6 in order to initiate a polling start, then receives an end report from the part 6. Upon completion, the controller 7 makes the terminal address to (01)16, and repeats the processings mentioned above. The address is changed cyclically as (02)16-(FF)16. The processing part 6 receives a start signal from the controller 7, while the transmission speed switching circuit 5 transmits a polling command to a transmission line 4. The part 6, in receiving a response from terminal equipments 2, 3, reports the end of transmission to the controller 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62234807A JPS6478546A (en) | 1987-09-21 | 1987-09-21 | Polling system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62234807A JPS6478546A (en) | 1987-09-21 | 1987-09-21 | Polling system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6478546A true JPS6478546A (en) | 1989-03-24 |
Family
ID=16976698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62234807A Pending JPS6478546A (en) | 1987-09-21 | 1987-09-21 | Polling system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6478546A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0278343A (en) * | 1988-06-20 | 1990-03-19 | Hitachi Ltd | Communication control system |
-
1987
- 1987-09-21 JP JP62234807A patent/JPS6478546A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0278343A (en) * | 1988-06-20 | 1990-03-19 | Hitachi Ltd | Communication control system |
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