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JPS645139A - Line monitor system - Google Patents

Line monitor system

Info

Publication number
JPS645139A
JPS645139A JP62160451A JP16045187A JPS645139A JP S645139 A JPS645139 A JP S645139A JP 62160451 A JP62160451 A JP 62160451A JP 16045187 A JP16045187 A JP 16045187A JP S645139 A JPS645139 A JP S645139A
Authority
JP
Japan
Prior art keywords
frame
interruption
synchronization
detecting
data transmitter
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
JP62160451A
Other languages
Japanese (ja)
Inventor
Kinji Itsugaya
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP62160451A priority Critical patent/JPS645139A/en
Publication of JPS645139A publication Critical patent/JPS645139A/en
Pending legal-status Critical Current

Links

Landscapes

  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To decide a fault occurrence point by allowing a slave station data transmitter to regenerate a frame in detecting the synchronization signal interruption of a received frame or an error of the received frame and to send the synchronizing signal interruption detecting information or frame error detection information to a master station data transmitter. CONSTITUTION:In detecting the synchronizing signal interruption of the received frame or in detecting an error of the received frame, a slave data transmitter uses a frame synchronization generating circuit 9 regenerates a frame. Then a synchronization interruption error detection code generating circuit 10 generates synchronization interruption or frame error detection information and sends it to the master station data transmitter. Thus, the master station allows to identify at which slave station or transmission line the frame interruption or frame error takes plate depending on the synchronization interruption detection information or the frame error detection information.
JP62160451A 1987-06-26 1987-06-26 Line monitor system Pending JPS645139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62160451A JPS645139A (en) 1987-06-26 1987-06-26 Line monitor system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62160451A JPS645139A (en) 1987-06-26 1987-06-26 Line monitor system

Publications (1)

Publication Number Publication Date
JPS645139A true JPS645139A (en) 1989-01-10

Family

ID=15715218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62160451A Pending JPS645139A (en) 1987-06-26 1987-06-26 Line monitor system

Country Status (1)

Country Link
JP (1) JPS645139A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04192645A (en) * 1990-11-22 1992-07-10 Toshiba Corp Synchronization transmission control system
US6125265A (en) * 1997-05-23 2000-09-26 Matsushita Electric Industrial Co., Ltd. Portable telephone device
DE102017111546A1 (en) 2016-06-02 2017-12-07 Fanuc Corporation Motor controller
DE102018210441A1 (en) 2017-07-03 2019-01-17 Fanuc Corporation Servo motor controller
DE102018132505A1 (en) 2017-12-22 2019-08-01 Fanuc Corporation Servomotor control device in a processing machine
US10605273B2 (en) 2018-01-16 2020-03-31 Fanuc Corporation Motor control device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04192645A (en) * 1990-11-22 1992-07-10 Toshiba Corp Synchronization transmission control system
US6125265A (en) * 1997-05-23 2000-09-26 Matsushita Electric Industrial Co., Ltd. Portable telephone device
DE102017111546A1 (en) 2016-06-02 2017-12-07 Fanuc Corporation Motor controller
DE102018210441A1 (en) 2017-07-03 2019-01-17 Fanuc Corporation Servo motor controller
US10525649B2 (en) 2017-07-03 2020-01-07 Fanuc Corporation Servo motor controller
DE102018132505A1 (en) 2017-12-22 2019-08-01 Fanuc Corporation Servomotor control device in a processing machine
US10605273B2 (en) 2018-01-16 2020-03-31 Fanuc Corporation Motor control device

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