Back to results
US 2003/0194069 A1Published application
Modem function incorporated in a programmable logic controller
AssigneeSiemens Energy & Automation, Inc.
InventorAlan D. McNutt
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeSiemens Energy & Automation, Inc.
InventorAlan D. McNutt
Estimating the term…
At least one exemplary embodiment of the present invention includes a system comprising a modem adapted to be integrated into a programmable logic controller and adapted to facilitate communications with a main processor of the programmable logic controller via a communications medium. At least one exemplary embodiment of the present invention includes a method comprising receiving a message from a main processor of a programmable logic controller, modulating the message within the programmable logic controller, and transmitting the message via a communications network. At least one exemplary embodiment of the present invention includes a method comprising receiving a message at a programmable logic controller from a communications network, demodulating the message within the programmable logic controller, and delivering the message to a main processor of the programmable logic controller. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. This abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
A system, comprising:
A system, comprising:
An apparatus, comprising:
An apparatus, comprising:
A system, comprising,
A system, comprising,
A system comprising a programmable logic controller comprising an integral modem.
A system, comprising:
A method, comprising:
The method of claim 0, further comprising automatically selecting a baud rate based upon a quality of a telephone connection.
A computer-readable medium containing instructions for activities comprising:
A method, comprising:
A computer-readable medium containing instructions for activities comprising:
A method, comprising:
A method, comprising:
A method, comprising:
A method, comprising:
A method, comprising:
A method, comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts: input/output
Program-control systems
Program control other than numerical control, i.e. in sequence controllers or logic controllers: programmable logic controllers, e.g. simulating…
Telephonic communication systems specially adapted for combination with other electrical systems: simultaneous speech and data transmission, e.g.…
Term end not estimated
The invention and its wide variety of potential embodiments will be readily understood via the following detailed description of certain exemplary embodiments, with reference to the accompanying drawings in which:
FIG. 1 is a block diagram of an exemplary embodiment of a system 1000 of the present invention;
FIG. 2 is a block diagram of an exemplary embodiment of an information device 2000 of the present invention;
At least one exemplary embodiment of the present invention includes a system comprising a modem adapted to be integrated into a programmable logic controller and adapted to facilitate communications with a main processor of the programmable logic controller via a communications medium. At least one exemplary embodiment of the present invention includes a method comprising receiving a message from a main processor of a programmable logic controller, modulating the message within the programmable logic controller, and transmitting the message via a communications network. At least one exemplary embodiment of the present invention includes a method comprising receiving a message at a programmable logic controller from a communications network, demodulating the message within the programmable logic controller, and delivering the message to a main processor of the programmable logic controller.
At least one exemplary embodiment of the present invention includes a system comprising a first modem integral to a first programmable logic controller, and a second modem integral to a second programmable logic controller, the first modem adapted to communicate with the second modem via a communications network. At least one exemplary embodiment of the present invention includes a method comprising coupling a first modem to a second modem, the first modem integral to a first programmable logic controller, the second modem connected to a second programmable logic controller, and transferring data between the first modem and the second modem.
At least one exemplary embodiment of the present invention includes a method comprising formatting a message at a first modem integral to a first programmable logic controller, and transmitting the formatted message from the first modem via a communications network. At least one exemplary embodiment of the present invention includes a system comprising a means for formatting a message at a modem integral to a programmable logic controller, and means for transmitting the formatted message from the modem via a communications network.