JPS5547530A - Process monitor device - Google Patents

Process monitor device

Info

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
Application number
JP11934378A
Other languages
Japanese (ja)
Inventor
Takeaki Kubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11934378A priority Critical patent/JPS5547530A/en
Publication of JPS5547530A publication Critical patent/JPS5547530A/en
Pending legal-status Critical Current

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  • 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
JP11934378A 1978-09-29 1978-09-29 Process monitor device Pending JPS5547530A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (13)

* Cited by examiner, † Cited by third party
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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