Werl, Germany

Beckhoff Automation GmbH

www.beckhoff.com/
Werl, Germany

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A method operates a safety control in an automation network having a master subscriber which carries out the safety control, at least one first slave subscriber which is assigned a first safety integrity level, and at least one second slave subscriber which is assigned a second safety integrity level. The first safety integrity level and the second safety integrity level differ from each other. A first safety code determination method is assigned to the first slave subscriber and a second safety code determination method is assigned to the second slave subscriber. The first safety code determination method and the second safety code determination method differ from each other. The master subscriber and the first slave subscriber use the first safety code determination method for interchanging a safety data block. The master subscriber and the second slave subscriber use the second safety code determination method for interchanging a safety data block.


Patent
Beckhoff Automation GmbH | Date: 2016-11-22

An output module for connection to a DC voltage intermediate circuit of a drive control system for an electrical drive comprises a frequency converter which is connected between the DC voltage intermediate circuit and an output of the output module, and a module controller for controlling the frequency converter. The module controller is configured to control the frequency converter in a first operating mode of the output module in such a manner that an electrical motor is driven with an electrical drive current from the DC voltage intermediate circuit via the output. The module controller is configured to control the frequency converter in a second operating mode of the output module in such a manner that an electrical feedback current from the DC voltage intermediate circuit is fed back into an electrical supply network via the output.


A distribution node for an automation network comprises at least two input/output interfaces for transmitting and receiving real-time-relevant and non-real-time-relevant data packets, and a switching device connected to the input/output interfaces. The switching device forwards data packets received via an input/output interface via a further input/output interface using a switching table, where the switching table contains at least a data packet identifier and a transmission time in a data transfer cycle for each real-time-relevant data packet. Inter alia, the switching device can detect a data packet identifier on reception of a real-time-relevant data packet, and output the real-time-relevant data packet at the transmission time allocated to the detected data packet identifier in the switching table via an input/output interface as a transmission interface.


In order to operate security control in an automation network, which automation network comprises a master subscriber that executes the security control, at least one first slave subscriber having a first security requirement level, and at least one second slave subscriber having a second security requirement level, a first security-code determination method is associated with the first slave subscriber and a second security-code determination method is associated with the second slave subscriber, wherein the master subscriber and the first slave subscriber use the first security-code determination method to exchange a security data block and the master subscriber and the second slave subscriber use the second security-code determination method to exchange a security data block.


Patent
Beckhoff Automation GmbH | Date: 2017-03-31

To operate a load a half bridge includes a switching device with a high-side semiconductor switch and a low-side semiconductor switch. The semiconductor switches are connected in series via their current terminals, and each semiconductor switch may be assigned, via its control terminal, a driving system that switches the respective semiconductor switch on or off according to a drive signal. The load is connectable between the high-side and low-side semiconductor switches. The half bridge may include a load relief device connected to the switching device, e.g., in order to collect energy during a switching process in the switching device. The half bridge can\include an energy recovery circuit configured to feed the energy collected by the load relief device, e.g., a current, to an energy storage device before a further energy collection, e.g., current collection, of the load relief device, during a further switching process in the switching device.


Patent
Beckhoff Automation GmbH | Date: 2017-07-19

The invention relates to a half bridge for operating a load comprising a switching device having a high-side semiconductor switch (T1) and a low-side semiconductor switch (T2) which are serially connected to one another via one of the respective current connections thereof. A control port is associated with each semiconductor switch via its control connection, which according to a control signal switches the respective semiconductor switch to be conductive or to be inhibiting. The load can be connected between the high-side semiconductor switch and the low-side semiconductor switch and to a load relief device (L1, C1) which is connected to the switching device in order to collect current in a switching operation in the switching device. The invention further relates to a circuit arrangement having at least one half bridge.


Patent
Beckhoff Automation GmbH | Date: 2017-07-26

The invention relates to an input/output module (3) for a bus system (1), comprising a socket (37) whose five contact receptacles each have an electrical contact (641), and comprising a measuring device (205) for detecting a plug (605) of a four-wire data cable (4), which is designed to detect, when a plug (605) is inserted into the socket (37), whether the plug (605) has four or five electrical contact pins, which are each inserted in one of the contact receptacles and electrically connected to the respective electrical contact (641) of the contact receptacles, wherein the measuring device (205) is designed to close a first and a second switch device (507, 509), exclusively upon detecting five electrical contact pins, in order to apply a respective voltage supply from two DC voltage supplies (34, 35) to the corresponding inserted contact pins of the plug (605) inserted in the socket (37) via the respective electrical contacts (641) of the contact receptacles.


Patent
Beckhoff Automation GmbH | Date: 2016-02-15

A control system for an electric motor comprising a stator having a plurality of stator coils and a rotor movable along the stator comprises a position detection device and a coil monitoring device. In this case, the position detection device is designed to generate position data representing a position of the rotor along the stator, and the coil monitoring device is designed to generate coil data representing a status of one or a plurality of the stator coils. The control system furthermore comprises a safety device designed to carry out a coordination between the coil data and the position data. Moreover, the safety device is designed to cause the electric motor to be transferred to a safe state if an error has been discovered during the coordination.


A method for operating a node in a communications network comprises the following steps: The node receives a reference time via the communications network. A transmit clock of the node, which was determined for an earlier clock cycle on the basis of a local clock of the node, is compared with the reference time. The local clock of the node is corrected on the basis of the comparison result. On the basis of the corrected local clock a transmit clock is determined to be used by the node for the current clock cycle.


Patent
Beckhoff Automation GmbH | Date: 2016-01-15

A network subscriber comprises a plurality of individual functional units, each individual functional unit comprising an application interface. The network subscriber further comprises a network subscriber comprises at least a shared functional unit, a first interface for establishing a physical connection and a second interface for establishing a further physical connection.

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