Modem function incorporated in a programmable logic controller

H - Electricity – 04 – M

Patent

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H04M 11/06 (2006.01)

Patent

CA 2471872

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.

Dans un mode de réalisation exemplaire au moins, la présente invention concerne un système comprenant un modem conçu pour être intégré dans un automate programmable et pour faciliter les communications avec le processeur principal dudit automate programmable par l'intermédiaire d'un support de communication. Dans un autre mode de réalisation exemplaire au moins, l'invention concerne un procédé consistant à recevoir un message à partir du processeur principal d'un automate programmable; à moduler le message à l'intérieur dudit automate programmable; et à transmettre ce message par l'intermédiaire d'un réseau de communication. Dans un autre mode de réalisation exemplaire au moins, l'invention concerne un procédé consistant à recevoir un message au niveau d'un automate programmable à partir d'un réseau de communication; à démoduler le message à l'intérieur dudit automate programmable; et à distribuer ce message au processeur principal dudit automate programmable.

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