JPS5544684A - Duplicated bus circuit - Google Patents

Duplicated bus circuit

Info

Publication number
JPS5544684A
JPS5544684A JP11890178A JP11890178A JPS5544684A JP S5544684 A JPS5544684 A JP S5544684A JP 11890178 A JP11890178 A JP 11890178A JP 11890178 A JP11890178 A JP 11890178A JP S5544684 A JPS5544684 A JP S5544684A
Authority
JP
Japan
Prior art keywords
circuit
bus circuit
bus
input terminals
line
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.)
Granted
Application number
JP11890178A
Other languages
Japanese (ja)
Other versions
JPS589445B2 (en
Inventor
Takao Sakata
Kyoji Kameo
Masamichi Iwama
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP53118901A priority Critical patent/JPS589445B2/en
Publication of JPS5544684A publication Critical patent/JPS5544684A/en
Publication of JPS589445B2 publication Critical patent/JPS589445B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Hardware Redundancy (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE: To constitute the bus circuit based on the duplicated line formed through combination of the bus driver and the signal transmission line, thus enhancing the reliability.
CONSTITUTION: Exclusive logic sum circuits ER1WERn possess the double input terminals connected to the signals lines which function as a piece of line. In case some fault occurs, the output is caused at output terminals SV1WSVn of the logic circuit since the potential differs among the input terminals. Accordingly, the fault occurrence of the bus circuit can be detected just by connecting previously a simple state monitor circuit to the corresponding output terminal.
COPYRIGHT: (C)1980,JPO&Japio
JP53118901A 1978-09-27 1978-09-27 Duplex bus circuit Expired JPS589445B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53118901A JPS589445B2 (en) 1978-09-27 1978-09-27 Duplex bus circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53118901A JPS589445B2 (en) 1978-09-27 1978-09-27 Duplex bus circuit

Publications (2)

Publication Number Publication Date
JPS5544684A true JPS5544684A (en) 1980-03-29
JPS589445B2 JPS589445B2 (en) 1983-02-21

Family

ID=14747965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53118901A Expired JPS589445B2 (en) 1978-09-27 1978-09-27 Duplex bus circuit

Country Status (1)

Country Link
JP (1) JPS589445B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5745750A (en) * 1980-09-01 1982-03-15 Fanuc Ltd Transmission switching device having open line detecting function and industrial robot using said device
JPH04340154A (en) * 1990-11-29 1992-11-26 Nippon Telegr & Teleph Corp <Ntt> Bus multiplex multiprocessor system
JP2008046702A (en) * 2006-08-11 2008-02-28 Omron Corp Plc device
JP2008084276A (en) * 2006-09-29 2008-04-10 Omron Corp Programmable logic controller device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5745750A (en) * 1980-09-01 1982-03-15 Fanuc Ltd Transmission switching device having open line detecting function and industrial robot using said device
JPS6228904B2 (en) * 1980-09-01 1987-06-23 Fanuc Ltd
JPH04340154A (en) * 1990-11-29 1992-11-26 Nippon Telegr & Teleph Corp <Ntt> Bus multiplex multiprocessor system
JP2008046702A (en) * 2006-08-11 2008-02-28 Omron Corp Plc device
JP2008084276A (en) * 2006-09-29 2008-04-10 Omron Corp Programmable logic controller device

Also Published As

Publication number Publication date
JPS589445B2 (en) 1983-02-21

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