Schneider Electric Industries Sas

Bertrand Fruchard

Francis Chauvet

Patrice Thizon

Dominique Benni

Caijin Wang

Hugues Da Dalt

For polling communication devices in a communication system including a host device and communication devices. The host device is connected to the communication devices via a clock line for transmitting a clock signal to the communication devices and via an arbitration line implemented with 'OR' logic for receiving arbitration signal transmitted by the communication devices. Each communication device is configured to pull up or down the arbitration line for sending an arbitration signal when the communication device is ready to send data to the host device. Each communication device is configured to pull down the arbitration line for sending an arbitration signal when the communication device has no data to send to the host device. The host device (HD) is able to: send a clock signal on the clock line during an arbitration cycle, causing the communication devices to send respective arbitration signals towards the arbitration line, during the arbitration cycle, receive a final signal corresponding to an addition of the arbitration signals, during the arbitration cycle, resulting from the “OR” logic applied to the arbitration signals, detect the communication devices ready to send data based on the “1” bit of the final signal, select, among the detected communication devices, the communication device associated with the highest priority in a priority table containing the priorities associated with the communication devices, and poll the selected communication device to receive data from the selected communication device during a communication cycle.

Method and system for polling communication devices in an industrial network system

A push-button with a receptacle and a cover plate, an actuating button actuatable in translation between two positions, a rest position and a pushed-in position, the cover plate being arranged at the periphery of the actuating button, a device for guiding the actuating button in translation between the two positions, and a return device for returning the actuating button from the pushed-in position toward the rest position. The guiding device include at least a pin including a bent rod shaped to have a first part pivotally mounted on a fastening unit of the actuating button and a second part pivotally mounted on a fastening unit of the cover plate, and the return device are designed to act on the pin by mechanical or magnetic effect.

Control device of push-button type with flat architecture

A control module and a human-machine dialog system including the control module. The human-machine dialog system includes one or more human-machine dialog devices connected in series, a human-machine dialog device including a functional element including at least one electrical contact, an indicator or a combination of at least one electrical contact and of an indicator. The control module includes a microcontroller, a common terminal designed to be connected to each functional element and several terminals each dedicated to the individual control of the functional element of each human-machine dialog device.

Control module for a human-machine dialogue system

The invention relates to a signalling device comprising a cover, a light source () mounted on a support circuit board () and a vibrating generator () intended to emit sound waves, the cover forming an outer wall () that is at least partly translucent, characterized in that:

Light and sound signalling device

The invention relates to a switching device comprising:&#x2014;a first assembly () comprising an actuation member () that can take a rest position and an actuation position;&#x2014;a second assembly () mounted on the first assembly () and comprising a mobile bridge () bearing mobile contacts () actuated with respect to fixed contacts () between an opening position and a closing position so as to respectively open or close an electrical circuit according to the position of the actuation member (), in which:&#x2014;the mobile bridge () is actuatable in rotation about an axis of rotation (A) and can take a third position so as to open the electrical circuit when the first assembly () is mechanically disconnected from the second assembly ().

Emergency stop device

A rotary knob for an electrical system includes a body containing a rotary maneuvering member which actuates a cam-driving part and bears one or more electrical units. A cup is defined between an outer cylindrical flange of the body and an inner cylindrical sleeve, and contains a spring either of a helical type for urging a sliding ring separate from the driving part, or of a torsion type to return the maneuvering member. The ring provides a sensitivity function. The cylindrical sleeve defines in a central opening thereof a centering seat of the shank of the maneuvering member.

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L'Isle d'Espagnac, France

Bertrand Fruchard