JPS5547530A - Process monitor device - Google Patents
Process monitor deviceInfo
- Publication number
- JPS5547530A JPS5547530A JP11934378A JP11934378A JPS5547530A JP S5547530 A JPS5547530 A JP S5547530A JP 11934378 A JP11934378 A JP 11934378A JP 11934378 A JP11934378 A JP 11934378A JP S5547530 A JPS5547530 A JP S5547530A
- Authority
- JP
- Japan
- Prior art keywords
- communication channel
- cpu
- communication
- information collecting
- standby
- 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)
- Selective Calling Equipment (AREA)
Abstract
PURPOSE: To carry out the process monitoring with reliability by forming a series circuit through a communication channel between a plurality of information collecting devices (slave stations) and providing ON-line CPU which is a master station and a standby system CPU respectively at both ends of this communication channel.
CONSTITUTION: At both ends of a communication channel 15 connecting a plurality of information collecting devices 6, two CPU 1A and 1B of ON-line and a standby are connected and as a communication channel different from the above communication channel, the dedicated communication channel 13 between 1A and 1B using the communication control devices 11, 12 is provided. The communication control device 10 at the standby CPU 1B can intercept all the communication between 1A and a plurality of information collecting devices 6.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11934378A JPS5547530A (en) | 1978-09-29 | 1978-09-29 | Process monitor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11934378A JPS5547530A (en) | 1978-09-29 | 1978-09-29 | Process monitor device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5547530A true JPS5547530A (en) | 1980-04-04 |
Family
ID=14759127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11934378A Pending JPS5547530A (en) | 1978-09-29 | 1978-09-29 | Process monitor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5547530A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5910089A (en) * | 1982-07-08 | 1984-01-19 | Hitachi Ltd | Remote supervisory and controlling device |
JPS59171236A (en) * | 1983-02-07 | 1984-09-27 | Toshiba Corp | Backup method of transmitter |
JPS60143045A (en) * | 1983-10-07 | 1985-07-29 | エセツクス・グル−プ・インコ−ポレイテツド | Series data communication system |
JPS6221347A (en) * | 1985-07-19 | 1987-01-29 | Hochiki Corp | Fault supervisory equipment |
JPS62169533A (en) * | 1986-01-22 | 1987-07-25 | Hitachi Ltd | Remote supervisory and controlling system for distribution line |
JPS6462048A (en) * | 1987-09-01 | 1989-03-08 | Fuji Electric Co Ltd | Duplex system for data transmitter |
JPH01175338A (en) * | 1987-12-28 | 1989-07-11 | Fuji Electric Co Ltd | Method for doubling transmission system |
WO1997017782A1 (en) * | 1995-11-10 | 1997-05-15 | Kabushiki Kaisha Toshiba | Communication system |
-
1978
- 1978-09-29 JP JP11934378A patent/JPS5547530A/en active Pending
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0340979B2 (en) * | 1982-07-08 | 1991-06-20 | ||
JPS5910089A (en) * | 1982-07-08 | 1984-01-19 | Hitachi Ltd | Remote supervisory and controlling device |
JPS59171236A (en) * | 1983-02-07 | 1984-09-27 | Toshiba Corp | Backup method of transmitter |
JPS60143045A (en) * | 1983-10-07 | 1985-07-29 | エセツクス・グル−プ・インコ−ポレイテツド | Series data communication system |
JPS6221347A (en) * | 1985-07-19 | 1987-01-29 | Hochiki Corp | Fault supervisory equipment |
JPS62169533A (en) * | 1986-01-22 | 1987-07-25 | Hitachi Ltd | Remote supervisory and controlling system for distribution line |
JPS6462048A (en) * | 1987-09-01 | 1989-03-08 | Fuji Electric Co Ltd | Duplex system for data transmitter |
JPH01175338A (en) * | 1987-12-28 | 1989-07-11 | Fuji Electric Co Ltd | Method for doubling transmission system |
WO1997017782A1 (en) * | 1995-11-10 | 1997-05-15 | Kabushiki Kaisha Toshiba | Communication system |
GB2312598A (en) * | 1995-11-10 | 1997-10-29 | Toshiba Kk | Communication system |
AU710392B2 (en) * | 1995-11-10 | 1999-09-16 | Kabushiki Kaisha Toshiba | Communication system |
US6034944A (en) * | 1995-11-10 | 2000-03-07 | Kabushiki Kaisha Toshiba | Communication system |
GB2312598B (en) * | 1995-11-10 | 2000-05-31 | Toshiba Kk | Communication system |
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