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 Status

Info

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
Application number
CA 2126105
Other languages
French (fr)
Other versions
CA2126105C (en
Inventor
Paul Robert Buda
Gary Lynn Dowdy
Kelvin Peele
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.)
Schneider Electric USA Inc
Original Assignee
Paul Robert Buda
Gary Lynn Dowdy
Kelvin Peele
Square D. Company
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 Paul Robert Buda, Gary Lynn Dowdy, Kelvin Peele, Square D. Company filed Critical Paul Robert Buda
Publication of CA2126105A1 publication Critical patent/CA2126105A1/en
Application granted granted Critical
Publication of CA2126105C publication Critical patent/CA2126105C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

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.
CA002126105A 1991-12-23 1992-12-17 Apparatus for receiving and modifying a serial data packet from a communications network to indicate its status Expired - Fee Related CA2126105C (en)

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)

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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
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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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