CA2320012A1 - System for communicating messages via a forward overhead control channel for a programmable logic control device - Google Patents

System for communicating messages via a forward overhead control channel for a programmable logic control device Download PDF

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Publication number
CA2320012A1
CA2320012A1 CA002320012A CA2320012A CA2320012A1 CA 2320012 A1 CA2320012 A1 CA 2320012A1 CA 002320012 A CA002320012 A CA 002320012A CA 2320012 A CA2320012 A CA 2320012A CA 2320012 A1 CA2320012 A1 CA 2320012A1
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CA
Canada
Prior art keywords
cellular
control channel
communications device
pages
network control
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
CA002320012A
Other languages
French (fr)
Other versions
CA2320012C (en
Inventor
Edward I. Comer
Edward R. Jansson
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.)
Cellemetry LLC
Original Assignee
Cellemetry LLC
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 Cellemetry LLC filed Critical Cellemetry LLC
Publication of CA2320012A1 publication Critical patent/CA2320012A1/en
Application granted granted Critical
Publication of CA2320012C publication Critical patent/CA2320012C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Communicating commands and/or data to a remote controller, such as a programmable logic controller, coupled to a cellular communications device by sending multiple pages via a cellular network control channel of a cellular mobile radiotelephone system. Each cellular communications device operating within the coverage area of the cellular mobile radiotelephone system can monitor the cellular network control channel for a pair of target pages within a first time period. Each target page includes a specific identifier assigned to one or more of the cellular communications devices. In the event that a cellular communications device receives target pages having a matching specific identifier, the device will monitor the cellular network control channel over a second time period for at least one command page or data page carrying instructions or information for use by the remote controller. The cellular communications device can respond to the reception of one or more command or data pages by forwarding the instructions or information to the controller via a communications link. In addition, the cellular communications device can acknowledge receipt of the data or command pages by issuing an acknowledgment signal formatted as an Autonomous Registration signal via the cellular network control channel.
CA002320012A 1999-09-20 2000-09-18 System for communicating messages via a forward overhead control channel for a programmable logic control device Expired - Fee Related CA2320012C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15472499P 1999-09-20 1999-09-20
US60/154,724 1999-09-20

Publications (2)

Publication Number Publication Date
CA2320012A1 true CA2320012A1 (en) 2001-03-20
CA2320012C CA2320012C (en) 2005-11-15

Family

ID=22552504

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002320012A Expired - Fee Related CA2320012C (en) 1999-09-20 2000-09-18 System for communicating messages via a forward overhead control channel for a programmable logic control device

Country Status (4)

Country Link
AR (1) AR032595A1 (en)
BR (1) BR0005862A (en)
CA (1) CA2320012C (en)
MX (1) MXPA00009229A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110908345A (en) * 2019-11-06 2020-03-24 苏州朗威电子机械股份有限公司 Monitoring feedback system for server cabinet production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110908345A (en) * 2019-11-06 2020-03-24 苏州朗威电子机械股份有限公司 Monitoring feedback system for server cabinet production
CN110908345B (en) * 2019-11-06 2022-08-05 苏州朗威电子机械股份有限公司 Monitoring feedback system for server cabinet production

Also Published As

Publication number Publication date
BR0005862A (en) 2001-07-24
MXPA00009229A (en) 2003-02-24
CA2320012C (en) 2005-11-15
AR032595A1 (en) 2003-11-19

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EEER Examination request
MKLA Lapsed

Effective date: 20170918