JPS6419440A - Centralized monitor device - Google Patents
Centralized monitor deviceInfo
- Publication number
- JPS6419440A JPS6419440A JP62177639A JP17763987A JPS6419440A JP S6419440 A JPS6419440 A JP S6419440A JP 62177639 A JP62177639 A JP 62177639A JP 17763987 A JP17763987 A JP 17763987A JP S6419440 A JPS6419440 A JP S6419440A
- Authority
- JP
- Japan
- Prior art keywords
- master station
- station
- slave
- slave stations
- normal operation
- 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
- Debugging And Monitoring (AREA)
Abstract
PURPOSE:To substitute one of slave stations for a master station when the master station is faulty by giving the same constitution to the master station and slave stations and always transmitting state data reporting data of each slave station and normal operation reporting data of the master station from the master station. CONSTITUTION:A master station 1 and slave stations 2A-2N have the same constitution but are different in ROM program for data transmission processing from each other. Each slave station is provided with a counter whose time of expiration is longer than the cycle of master station normal operation report transmitted from the master station 1 at intervals of a certain time and is different from those of counters of the other slave stations, and this counter starts counting after being cleared each time when the slave station receives the master station normal operation report, and the slave station executes the function of the master station 1 when the counter expires, and then, slave stations where times of expiration of counters are shorter are more preferentially substituted for the master station 1 successively. Thus, the slave station having the highest priority level automatically executes the function of the master station 1 instead of the master station 1 if the normal operation report of the master station 1 is not transmitted to slave stations 2A-2N because of the occurrence of trouble in the master station 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62177639A JPS6419440A (en) | 1987-07-15 | 1987-07-15 | Centralized monitor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62177639A JPS6419440A (en) | 1987-07-15 | 1987-07-15 | Centralized monitor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6419440A true JPS6419440A (en) | 1989-01-23 |
Family
ID=16034511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62177639A Pending JPS6419440A (en) | 1987-07-15 | 1987-07-15 | Centralized monitor device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6419440A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5161066A (en) * | 1989-12-25 | 1992-11-03 | Asahi Kogaku Kogyo Kabushiki Kaisha | Engaging mechanism of roller and guide groove in optical element |
| US6038987A (en) * | 1999-01-11 | 2000-03-21 | Pittsburgh Mineral And Environmental Technology, Inc. | Method and apparatus for reducing the carbon content of combustion ash and related products |
-
1987
- 1987-07-15 JP JP62177639A patent/JPS6419440A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5161066A (en) * | 1989-12-25 | 1992-11-03 | Asahi Kogaku Kogyo Kabushiki Kaisha | Engaging mechanism of roller and guide groove in optical element |
| US6038987A (en) * | 1999-01-11 | 2000-03-21 | Pittsburgh Mineral And Environmental Technology, Inc. | Method and apparatus for reducing the carbon content of combustion ash and related products |
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