CA2126105A1 - Apparatus for Receiving and Modifying a Serial Data Packet from a Communications Network to Indicate Its Status - Google Patents
Apparatus for Receiving and Modifying a Serial Data Packet from a Communications Network to Indicate Its StatusInfo
- Publication number
- CA2126105A1 CA2126105A1 CA 2126105 CA2126105A CA2126105A1 CA 2126105 A1 CA2126105 A1 CA 2126105A1 CA 2126105 CA2126105 CA 2126105 CA 2126105 A CA2126105 A CA 2126105A CA 2126105 A1 CA2126105 A1 CA 2126105A1
- Authority
- CA
- Canada
- Prior art keywords
- data packet
- output
- state
- remote input
- indicate
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/423—Loop networks with centralised control, e.g. polling
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Communication Control (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
- Selective Calling Equipment (AREA)
- Information Transfer Systems (AREA)
Abstract
A series of remote input/output repeater modules (12a-12d) connected on a synchronous serial communication network supervised by a programmable logic controller(10) uses a synchronous serial communications protocol. The programmable logic controller (10) contains a transmitter module (16) for generating a data packet containing the state of output devices (24a-24d) connected to the remote input/output repeater modules (12a-12d). A receiver module (18) receives and decodes a returned modified data packet that indicates the state of input devices (22a-22d) connected to the same or other remote input/output repeater modules (12a-12d). The remote input/output repeater modules,(12a-12d) receive and decode the data packet to determine the state of the output devices (24a-24d) that may be connected to it and modifies the data packet to indicate the state of its input device (22a-22d) if there is one present. The modified data packet is sent to the next in-line remote input/output repeater module (12a-12d) coupled to the network.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/811,727 US5283781A (en) | 1991-12-23 | 1991-12-23 | Apparatus for receiving and modifying a serial data packet from a communications network to indicate its status |
US07/811,727 | 1991-12-23 | ||
PCT/US1992/011022 WO1993013608A1 (en) | 1991-12-23 | 1992-12-17 | Apparatus for receiving and modifying a serial data packet from a communications network to indicate its status |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2126105A1 true CA2126105A1 (en) | 1993-07-08 |
CA2126105C CA2126105C (en) | 1999-11-30 |
Family
ID=25207388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002126105A Expired - Fee Related CA2126105C (en) | 1991-12-23 | 1992-12-17 | Apparatus for receiving and modifying a serial data packet from a communications network to indicate its status |
Country Status (6)
Country | Link |
---|---|
US (1) | US5283781A (en) |
EP (1) | EP0619056A4 (en) |
JP (1) | JPH07502395A (en) |
AU (1) | AU659383B2 (en) |
CA (1) | CA2126105C (en) |
WO (1) | WO1993013608A1 (en) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5363367A (en) * | 1991-09-19 | 1994-11-08 | Honda Giken Kogyo Kabushiki Kaisha | Data transmission system using an optical fiber loop |
US5311508A (en) | 1991-12-23 | 1994-05-10 | Square D Company | Apparatus for receiving and decoding a serial data packet containing the status of a network of single point I/O devices |
JP3088180B2 (en) * | 1992-03-26 | 2000-09-18 | 日本電気アイシーマイコンシステム株式会社 | Serial input interface circuit |
EP0746804B1 (en) * | 1994-02-23 | 2001-09-05 | Rosemount Inc. | Field transmitter for storing information |
JPH10502181A (en) * | 1994-06-20 | 1998-02-24 | ネオマジック・コーポレイション | Graphics controller integrated circuit without memory interface |
US5553075A (en) * | 1994-06-22 | 1996-09-03 | Ericsson Ge Mobile Communications Inc. | Packet data protocol for wireless communication |
US5802389A (en) * | 1994-12-29 | 1998-09-01 | Siemens Energy & Automation, Inc. | Expansion module address method and apparatus for a programmable logic controller |
US5721737A (en) * | 1995-05-09 | 1998-02-24 | Smc Pneumatics, Inc. | Serial transmission system for controlling a network of I/O devices |
US5742602A (en) * | 1995-07-12 | 1998-04-21 | Compaq Computer Corporation | Adaptive repeater system |
US5771511A (en) * | 1995-08-04 | 1998-06-30 | Hill-Rom, Inc. | Communication network for a hospital bed |
US6584628B1 (en) | 1995-08-04 | 2003-07-01 | Hill-Rom Services, Inc. | Hospital bed having a rotational therapy device |
US7017208B2 (en) * | 1995-08-04 | 2006-03-28 | Hill-Rom Services, Inc. | Hospital bed |
US5793750A (en) * | 1995-10-20 | 1998-08-11 | Schweitzer Engineering Laboratories, Inc. | System of communicating output function status indications between two or more power system protective relays |
US5961576A (en) * | 1996-05-03 | 1999-10-05 | Xilinx, Inc. | Configurable parallel and bit serial load apparatus |
US5742531A (en) * | 1996-05-03 | 1998-04-21 | Xilinx Inc | Configurable parallel and bit serial load apparatus |
US5802321A (en) * | 1996-06-20 | 1998-09-01 | Square D Company | Synchronous serial communication network for controlling single point I/O devices |
JP3343036B2 (en) * | 1996-07-24 | 2002-11-11 | 三菱電機株式会社 | Programmable controller network system |
US5805793A (en) * | 1996-10-18 | 1998-09-08 | Mcdonnell Douglas Corporation | Stand-alone test device for testing command-response remote terminals |
US5995988A (en) * | 1997-12-04 | 1999-11-30 | Xilinx, Inc. | Configurable parallel and bit serial load apparatus |
US6466581B1 (en) * | 1998-08-03 | 2002-10-15 | Ati Technologies, Inc. | Multistream data packet transfer apparatus and method |
US6196460B1 (en) | 1998-08-13 | 2001-03-06 | Cardcom, Inc. | Age verification device |
EP1189141A3 (en) * | 2000-09-13 | 2005-12-28 | Texas Instruments Inc. | Bus bridge |
CA2439163A1 (en) * | 2001-03-30 | 2002-10-10 | Hill-Rom Services, Inc. | Hospital bed and network system |
US7701683B2 (en) * | 2001-07-06 | 2010-04-20 | Schweitzer Engineering Laboratories, Inc. | Apparatus, system, and method for sharing output contacts across multiple relays |
US7154866B2 (en) * | 2002-03-21 | 2006-12-26 | Inovonics Wireless Corporation | Message control protocol in a communications network having repeaters |
US7554932B1 (en) | 2002-03-21 | 2009-06-30 | Inovonics Corporation | Message control protocol in a communications network having repeaters |
US7328399B2 (en) * | 2002-08-06 | 2008-02-05 | Network Equipment Technologies, Inc. | Synchronous serial data communication bus |
US7248938B2 (en) * | 2003-12-31 | 2007-07-24 | Vigilistics, Inc. | Method and system for monitoring batch product manufacturing |
US20060046766A1 (en) * | 2004-09-01 | 2006-03-02 | Abet Technologies, Llc | Method and system for bidirectional communications and power transmission |
US20080189132A1 (en) * | 2007-02-05 | 2008-08-07 | Matthew Minson | Automatic Hospital Bed Accounting System |
CN101540753B (en) * | 2008-03-19 | 2012-01-04 | 中国科学院沈阳自动化研究所 | Receiving method and receiver for common field bus based on ternary content addressable memory |
US9256232B2 (en) | 2009-06-12 | 2016-02-09 | Schweitzer Engineering Laboratories, Inc. | Voltage regulation using multiple voltage regulator controllers |
US8427131B2 (en) * | 2009-06-12 | 2013-04-23 | Schweitzer Engineering Laboratories Inc | Voltage regulation at a remote location using measurements from a remote metering device |
US8476874B2 (en) | 2009-10-13 | 2013-07-02 | Schweitzer Engineering Laboratories, Inc | Systems and methods for synchronized control of electrical power system voltage profiles |
KR101762185B1 (en) | 2010-05-10 | 2017-07-27 | 누코 코포레이션 | Centralized detection of radiation in multiple facilities |
US9539155B2 (en) | 2012-10-26 | 2017-01-10 | Hill-Rom Services, Inc. | Control system for patient support apparatus |
US9830424B2 (en) | 2013-09-18 | 2017-11-28 | Hill-Rom Services, Inc. | Bed/room/patient association systems and methods |
US11911325B2 (en) | 2019-02-26 | 2024-02-27 | Hill-Rom Services, Inc. | Bed interface for manual location |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4121054A (en) * | 1977-01-03 | 1978-10-17 | Martin Marietta Corporation | Regenerative line access module |
US4144410A (en) * | 1977-10-11 | 1979-03-13 | Cutler-Hammer, Inc. | Multiplex communication system |
US4335426A (en) * | 1980-03-10 | 1982-06-15 | International Business Machines Corporation | Remote processor initialization in a multi-station peer-to-peer intercommunication system |
US4389721A (en) * | 1981-06-30 | 1983-06-21 | Harris Corporation | Time-division multiplex serial loop |
WO1984004861A1 (en) * | 1983-05-31 | 1984-12-06 | Oesterr Forsch Seibersdorf | Method and device for the transfer of data in a data loop |
JPH0771097B2 (en) * | 1985-12-20 | 1995-07-31 | 株式会社日立製作所 | Time division multiplex communication system |
US4730309A (en) * | 1986-08-25 | 1988-03-08 | Amp Incorporated | Data transmission station |
ES2042656T3 (en) * | 1987-08-11 | 1993-12-16 | Siemens Ag | COMMUNICATION SYSTEM WITH A NETWORK IN THE FORM OF A RING PROVIDED AS A COMMUNICATION NETWORK FOR LINKS IN THE SUBSCRIBER CONNECTION ZONE OF A DIGITAL SWITCHING FACILITY. |
US5119481A (en) * | 1987-12-22 | 1992-06-02 | Kendall Square Research Corporation | Register bus multiprocessor system with shift |
WO1989011763A1 (en) * | 1988-05-17 | 1989-11-30 | Kabushiki Kaisha Komatsu Seisakusho | Series controller |
US5150363A (en) * | 1989-08-11 | 1992-09-22 | Digital Audio Disc Corporation | Serial input/output multiplexing apparatus |
-
1991
- 1991-12-23 US US07/811,727 patent/US5283781A/en not_active Expired - Lifetime
-
1992
- 1992-12-17 JP JP5511797A patent/JPH07502395A/en active Pending
- 1992-12-17 AU AU33296/93A patent/AU659383B2/en not_active Ceased
- 1992-12-17 EP EP93901127A patent/EP0619056A4/en not_active Withdrawn
- 1992-12-17 CA CA002126105A patent/CA2126105C/en not_active Expired - Fee Related
- 1992-12-17 WO PCT/US1992/011022 patent/WO1993013608A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0619056A4 (en) | 1996-01-10 |
CA2126105C (en) | 1999-11-30 |
AU3329693A (en) | 1993-07-28 |
US5283781A (en) | 1994-02-01 |
AU659383B2 (en) | 1995-05-11 |
EP0619056A1 (en) | 1994-10-12 |
WO1993013608A1 (en) | 1993-07-08 |
JPH07502395A (en) | 1995-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |