Beckhoff Automation Gmbh

Holger Buettner

Hans Beckhoff

Dirk Janssen

Thomas Rettig

Erik Vonnahme

Thorsten Bunte

Jens Sachs

Robert Zutz

Oliver Ellerbrock

A drive controller comprises an evaluation unit to receive and evaluate a first item of feedback information from a motor connected to the drive controller, a control-signal block connected to secure inputs of the drive controller to receive condition control signals and to provide the condition control signals as input signals, a drive-signal block connected to the evaluation unit to calculate a first speed and/or a first position on the basis of the first item of feedback information on at least a first channel and to provide a first speed signal and/or a first position signal, a programmable logic unit connected to the control-signal block and the drive-signal block to realize the safety functions and the speed signal and/or the position signal to provide switch-off signals, and an output unit connected to the logic unit and to secure outputs of the drive controller to output switch-off signals on safety-switch-off paths.

Drive controller and drive system

A method for operating a network that has a network subscriber that is connected to a superordinate bus and to a subordinate bus comprises steps for the reception of a first superordinate data message by the network subscriber via the superordinate bus, the extraction of first data from the first superordinate data message by the network subscriber and for the transmission of a first subordinate data message by the network subscriber via the subordinate bus. In one case, the first subordinate data message comprises the first data.

Method for operating a network

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.

Network subscriber

A packet switching device comprises a network interface configured to send and receive data packets via a communication network, a plurality of string interfaces configured to transmit and receive data packets to/from a plurality of participants and a switching unit connected to the network interface and to the plurality of string interfaces. The a switching unit comprises a control unit configured to control a data throughput. The control unit comprises an interface association table which determines that data packets received via the network interface are mandatorily outputted via the string interfaces and the data packets received via the string interfaces are mandatorily outputted via the network interface.

Packet switching device and local communication network with such a packet switching device

For the purpose of controlling safety functions as part of a system controller which is not oriented to safety functions in an automation system, the invention provides safety modules having a sound functionality and provides a safety protocol which transmits data in the form of safety messages, wherein input and output parameters from each safety module are encapsulated by the safety protocol, and the individual safety modules are logically combined with one another in terms of data and flow by means of a data transmission link in line with the system's safety functions which are to be controlled, the data interchange taking place between the safety modules on the basis of the safety protocol.

Safety-oriented control system

A method transmits data packets on a data transmission link between two communication subscribers. The data packets respectively contain a check character which is calculated from the other data in the data packet. One communication subscriber uses the check character from the last data packet received by the other communication subscriber as start value for calculating the check character for a subsequent data packet which is to be sent to the other communication subscriber.

Growing community of inventors

Berlin, Germany

Holger Buettner