Abstract: A data bus subscriber connected to a local bus, particularly a ring bus, has a status signal input for receiving a first status signal value from a downstream data bus subscriber or a terminator, and a status signal output for providing a second status signal value to an upstream data bus subscriber or to a local bus master. The data bus subscriber is adapted to provide the second status signal value based on a logical link of a communication readiness of the data bus subscriber and the first status signal value.

Abstract: A data bus subscriber and a method for processing data, wherein the data bus subscriber can be connected to a local bus, particularly a ring bus, and the data bus subscriber has an input interface, which can be connected to the local bus, for receiving first local bus data, an output interface, which can be connected to the local bus, for transmitting second local bus data, a processing component for synchronous processing of the first local bus data and/or data stored in a memory and for output of at least one control signal, a logic unit, which is adapted in order to modify a quantity of received first local bus data based on the control signal in order to generate the second local bus data to be transmitted, wherein the logic unit is further adapted for synchronous, delayed transmitting of the second local bus data via the output interface.

Abstract: A module unit for connecting a data bus participant to a local bus. The module unit has a first input interface and a first output interface which can be connected to the local bus, a first data connection interface which can be connected to the data bus participant, and a first switch which is adapted so as to assume a first or a second switch state depending on a control input from the data bus participant, connect the first input interface to the first output interface in the first switch state, and connect the first data connection interface to the first output interface in the second switch state.

Abstract: A data bus subscriber connected to a local bus, particularly a ring bus. The data bus subscriber has a status signal input for receiving a first status signal value from a downstream data bus subscriber or a terminator, a status signal output for providing a second status signal value to an upstream data bus subscriber or to a local bus master, wherein the data bus subscriber is adapted to provide the second status signal value based on a logical link of a communication readiness of the data bus subscriber and the first status signal value. The invention further relates to a corresponding method and a local bus.

Abstract: A method for operating a data bus subscriber of a local bus, particularly of a ring bus, the method including the steps of: receiving a first data packet over the local bus, wherein the first data packet has an address of the data bus subscriber to which it is directed and at least one instructions list, having a set of instructions for processing process data, receiving a second data packet over the local bus, wherein the second data packet has process data; and executing instructions of the at least one instructions list for processing the received process data. A corresponding data bus subscriber and a local bus master is also provided.

Abstract: A data bus subscriber and a method for processing data, wherein the data bus subscriber can be connected to a local bus, particularly a ring bus, and the data bus subscriber has an input interface, which can be connected to the local bus, for receiving first local bus data, an output interface, which can be connected to the local bus, for transmitting second local bus data, a processing component for synchronous processing of the first local bus data and/or data stored in a memory and for output of at least one control signal, a logic unit, which is adapted in order to modify a quantity of received first local bus data based on the control signal in order to generate the second local bus data to be transmitted, wherein the logic unit is further adapted for synchronous, delayed transmitting of the second local bus data via the output interface.

Abstract: An apparatus with a data input, a data output, a first buffer, a second buffer, and control logic is disclosed. The control logic is equipped to route data packets that are received through the data input to the first buffer or the second buffer and to flag them as valid or invalid, and to provide data packets that are to be output through the data output from the first buffer or the second buffer, equipped to provide a data packet that is to be output through the data output from the first buffer when the data packet is being written into the first buffer at the time of a start of the readout, to provide it from the second buffer when the data packet is being written into the second buffer at the time of a start of the readout.

Abstract: A data bus subscriber connected to a local bus, particularly a ring bus. The data bus subscriber has a status signal input for receiving a first status signal value from a downstream data bus subscriber or a terminator, a status signal output for providing a second status signal value to an upstream data bus subscriber or to a local bus master, wherein the data bus subscriber is adapted to provide the second status signal value based on a logical link of a communication readiness of the data bus subscriber and the first status signal value. The invention further relates to a corresponding method and a local bus.

Abstract: A data bus subscriber connected to a local bus, particularly a ring bus. The data bus subscriber has a status signal input for receiving a first status signal value from a downstream data bus subscriber or a terminator, a status signal output for providing a second status signal value to an upstream data bus subscriber or to a local bus master, wherein the data bus subscriber is adapted to provide the second status signal value based on a logical link of a communication readiness of the data bus subscriber and the first status signal value. The invention further relates to a corresponding method and a local bus.

Abstract: A method for operating a local bus, in particular a ring bus, including data bus participants, as well as a local bus master are described. The method comprises transmitting a first identifier of a cycle frame, the first identifier defining the beginning of the cycle frame; transmitting process data and management data over the local bus, the process data and management data being transmitted within the cycle frame, at least one isochronous data packet containing the process data being transmitted in a first time interval for the first identifier, and, if management data is transmitted within the cycle frame, this management data is transmitted separately from the process data.

Abstract: The subject of the invention is a system (1), having a master (900), a first slave (100), a second slave (200), and a bus (40), wherein the master (900) and the first slave (100) and the second slave (200) are connected to one another by the bus (40) in order to transmit a data packet (4) from the master (900) via the first slave (100) and back to the master (900) via the second slave (200), in which the master (900) is configured to generate the data packet (4) with a header (4.1) and a data unit (4.2) and to send the generated data packet (4) on the bus (40), in which the first slave (100) is configured to write its first address (A1) and first payload data (D1) into a first segment (10) of the data unit (4.2) of the data packet (4), in which the second slave (200) is configured to write its second address (A2) and second payload data (D2) into a second segment (20) of the data unit (4.

Abstract: A module unit for connecting a data bus participant to a local bus. The module unit has a first input interface and a first output interface which can be connected to the local bus, a first data connection interface which can be connected to the data bus participant, and a first switch which is adapted so as to assume a first or a second switch state depending on a control input from the data bus participant, connect the first input interface to the first output interface in the first switch state, and connect the first data connection interface to the first output interface in the second switch state.

Abstract: A bus system, a method for operating a bus system and a participant of a bus system are provided. The participant includes a timer and a transceiver circuit. The transceiver circuit is configured to receive a data packet having a time stamp value via a bus. The timer is configured for synchronization, based on the time stamp value. The timer is configured to change the time stamp value. The transceiver circuit is configured to transmit the data packet with the changed time stamp value via the bus.

Abstract: A method is described for identifying communication-ready data bus subscribers connected to a local bus. The method comprises receiving, at a local bus master, at least one data packet transmitted via the local bus, wherein the at least one data packet received at the local bus master comprises an address of a communication-ready data bus subscriber among a plurality of communication-ready data bus subscribers in the local bus, wherein the communication-ready data bus subscriber is in a sequence of communication-ready data bus subscribers, and mapping of the received address by the local bus master to a relative position of the communication-ready data bus subscriber in the sequence of communication-ready data bus subscribers in the local bus. In addition, a local bus master of the local bus is described.

Abstract: A module unit for connecting a data bus participant to a local bus. The module unit has a first input interface and a first output interface which can be connected to the local bus, a first data connection interface which can be connected to the data bus participant, and a first switch which is adapted so as to assume a first or a second switch state depending on a control input from the data bus participant, connect the first input interface to the first output interface in the first switch state, and connect the first data connection interface to the first output interface in the second switch state.

Abstract: A subscriber of a wired data network, in particular of a local bus system, having internal clock generator for generating a clock generator signal having a clock generator frequency for the subscriber, a receive circuit for receiving a serial receive data stream, a processing circuit for inputting parallel receive data and for outputting parallel transmit data, and a transmit circuit for transmitting a serial transmit data stream. The receive circuit has a serial-to-parallel converter for converting serial receive data of the serial receive data stream into the parallel receive data. The receive circuit has a synchronization unit for synchronizing the internal clock generator to the data clock frequency contained in the serial receive data stream. The synchronization unit is configured for detecting transitions in the received serial receive data stream and for controlling the clock generator frequency of the internal clock generator as a function of the detected transitions.

Abstract: A master of a bus system for process control with one slave and a bus. A transceiver circuit transmits and receives for process control by data packets. A channel has a receive memory area. The transceiver circuit is set up to write the receive data of a data packet received via the bus into the receive memory area. The channel has at least one selection circuit, an output of the selection circuit being connected to the transceiver circuit. The selection circuit has a first input for selecting initial data. The selection circuit has a second input, the second input being connected to the receive memory area, and the selection circuit is configured to select the transmit data from the initial data and/or the data written into the receive memory area and to output the transmitted data to the transceiver circuit for a data packet to be transmitted.

Abstract: A method for processing process data by means of data bus subscribers of a local bus, the method including: receiving at least one instruction list at a data bus subscriber, the instruction list having a set of instructions for processing process data, storing the at least one instruction list in a memory, receiving an instruction list index, ILI, at the data bus subscriber, selecting one of the at least one stored instruction list on the basis of the received ILI if the ILI is associated with the stored instruction list, and executing the set of instructions of the selected instruction list in order to process the process data by means of the data bus subscriber. The local bus is designed as a ring bus, for example. Each output of a data bus subscriber is connected, for example, to an actuator.

Abstract: A method for the distributed processing of process data in a local bus, wherein the local bus has a local bus master and at least two data bus participants, and the method comprises: sending a data packet with process data from the local bus master via the local bus; receiving the data packet at a first data bus participant; pre-processing at least one item of process data using the first data bus participant; sending the data packet with the at least one item of pre-processed process data via the local bus to the second data bus participant using the first data bus participant; receiving the data packet with the at least one item of pre processed process data at the second data bus participant; and further processing the at least one item of pre-processed process data using the second data bus participant.

Abstract: A method and a data bus subscriber are described for processing process data in a local bus, in particular a ring bus, the method including receiving a first symbol during a first number of working cycles, with the first symbol comprising first process data; loading at least one first instruction from an instruction list during the first number of working cycles, receiving a second symbol during a second number of working cycles, with the second symbol comprising second process data, processing the first process data contained in the first symbol with the at least one loaded first instruction during the second number of working cycles, and loading at least one second instruction for processing the second process data of the second symbol during the second number of working cycles.