NO902173L - Anordning og fremgangsmaate for identifikasjon av meldingsinitiering i et prosesstyringsnettverk. - Google Patents
Anordning og fremgangsmaate for identifikasjon av meldingsinitiering i et prosesstyringsnettverk.Info
- Publication number
- NO902173L NO902173L NO90902173A NO902173A NO902173L NO 902173 L NO902173 L NO 902173L NO 90902173 A NO90902173 A NO 90902173A NO 902173 A NO902173 A NO 902173A NO 902173 L NO902173 L NO 902173L
- Authority
- NO
- Norway
- Prior art keywords
- message
- character
- logical signal
- identification
- procedure
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Communication Control (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
For å sikre nayaktlgheten av informasjon som sendes over et nettverk, må inltlerlngen av meldingen utvetydig Identifiseres. I den foreliggende oppfin- nelse består intermeldlngsavstanden av en serie av Identiske logiske signaler som overskrider en minimumsverdi som skiller dette Intervallet fra et meldingstegn. Meldlngstegnet har forutdefinert lengde med et startbitposisjon og et stoppbltposlsjon logisk signal som avgrenser tegnet som har de samme forut- bestemte logiske signaler for hvert meldingstegn. Tegnet har minst en ytterligere ikke-dataposisjon som har et første logisk signal for det initielle tegnet av en melding og det komplementære logiske signalet for de resterende tegn i meldingen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/121,561 US4872186A (en) | 1987-11-17 | 1987-11-17 | Apparatus and method for identification of message initiation in a process control network |
PCT/US1988/004097 WO1989005072A1 (en) | 1987-11-17 | 1988-11-16 | Apparatus and method for identification of message initiation in a process control network |
Publications (2)
Publication Number | Publication Date |
---|---|
NO902173D0 NO902173D0 (no) | 1990-05-15 |
NO902173L true NO902173L (no) | 1990-05-15 |
Family
ID=22397492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO90902173A NO902173L (no) | 1987-11-17 | 1990-05-15 | Anordning og fremgangsmaate for identifikasjon av meldingsinitiering i et prosesstyringsnettverk. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4872186A (no) |
EP (1) | EP0386148B1 (no) |
JP (1) | JPH03500956A (no) |
AT (1) | ATE105123T1 (no) |
AU (1) | AU616232B2 (no) |
CA (1) | CA1312676C (no) |
DE (1) | DE3889334T2 (no) |
NO (1) | NO902173L (no) |
WO (1) | WO1989005072A1 (no) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2635624B1 (fr) * | 1988-08-19 | 1994-05-13 | Abiven Jacques | Procede de synchronisation et dispositifs de recuperation de synchronisation pour communications a l'alternat |
US5012442A (en) * | 1988-12-19 | 1991-04-30 | Chrysler Corporation | Bus receiver power-up synchronization and error detection circuit |
US5138634A (en) * | 1990-02-26 | 1992-08-11 | Knapp Stephen L | Altered-length messages in interrupted-clock transmission systems |
US5027381A (en) * | 1990-03-15 | 1991-06-25 | Motorola, Inc. | Over speed data rate adjustment method and apparatus in an asynchronous data stream |
JP2568458B2 (ja) * | 1990-11-01 | 1997-01-08 | 三菱電機株式会社 | データ長さ検出装置 |
JP3085448B2 (ja) * | 1995-03-17 | 2000-09-11 | 矢崎総業株式会社 | 通信システム |
US5852746A (en) * | 1995-06-26 | 1998-12-22 | Canon Kabushiki Kaisha | System for transmitting a message using status button to system administrator by using a signal comprising predetermined number of changes effected over a period |
US20060174051A1 (en) * | 2005-02-02 | 2006-08-03 | Honeywell International Inc. | Method and apparatus for a redundancy approach in a processor based controller design |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1477174A (en) * | 1974-06-18 | 1977-06-22 | Plessey Co Ltd | Electrical circuit arrangements responsive to serial digital signals forming multibyte data-words |
US4310922A (en) * | 1980-01-10 | 1982-01-12 | Lichtenberger W Wayne | Bit sampling multiplexer apparatus |
US4471481A (en) * | 1981-02-11 | 1984-09-11 | The Boeing Company | Autonomous terminal data communications system |
AU8809282A (en) * | 1981-09-23 | 1983-03-31 | Honeywell Information Systems Incorp. | Data decoder |
JPS5961236A (ja) * | 1982-09-29 | 1984-04-07 | Toshiba Corp | 光伝送用受信回路方式 |
JPS62217746A (ja) * | 1986-03-19 | 1987-09-25 | Iwatsu Electric Co Ltd | スタ−トビツト検出回路 |
-
1987
- 1987-11-17 US US07/121,561 patent/US4872186A/en not_active Expired - Lifetime
-
1988
- 1988-11-16 JP JP1500558A patent/JPH03500956A/ja active Granted
- 1988-11-16 WO PCT/US1988/004097 patent/WO1989005072A1/en active IP Right Grant
- 1988-11-16 DE DE3889334T patent/DE3889334T2/de not_active Expired - Fee Related
- 1988-11-16 AU AU28266/89A patent/AU616232B2/en not_active Ceased
- 1988-11-17 CA CA000583336A patent/CA1312676C/en not_active Expired - Lifetime
-
1989
- 1989-06-06 AT AT8989900718T patent/ATE105123T1/de not_active IP Right Cessation
- 1989-06-06 EP EP89900718A patent/EP0386148B1/en not_active Expired - Lifetime
-
1990
- 1990-05-15 NO NO90902173A patent/NO902173L/no unknown
Also Published As
Publication number | Publication date |
---|---|
JPH0580187B2 (no) | 1993-11-08 |
CA1312676C (en) | 1993-01-12 |
DE3889334D1 (de) | 1994-06-01 |
EP0386148B1 (en) | 1994-04-27 |
WO1989005072A1 (en) | 1989-06-01 |
ATE105123T1 (de) | 1994-05-15 |
NO902173D0 (no) | 1990-05-15 |
AU616232B2 (en) | 1991-10-24 |
DE3889334T2 (de) | 1994-09-01 |
EP0386148A1 (en) | 1990-09-12 |
AU2826689A (en) | 1989-06-14 |
JPH03500956A (ja) | 1991-02-28 |
US4872186A (en) | 1989-10-03 |
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