Disclosed is a system for collecting data from an automated plant having a field device connected for communication and for exchanging telegrams with a superordinate unit by means of a communication loop using a first protocol. The system includes a hat rail; and a terminal module mounted on the hat rail and embodied to monitor telegrams transmitted from the field device to the superordinate unit via the communication loop. The terminal module is further embodied to convert monitored telegrams into a second protocol and to output the converted telegrams. The system further includes a head module mounted on the hat rail and connected with the terminal module. The electronics unit of the head module is embodied to convert telegrams output from the terminal module into a third protocol to output them via the first network interface.

Disclosed is a system for collecting data from an automated plant having a field device connected for communication and for exchanging telegrams with a superordinate unit by means of a communication loop using a first protocol. The system includes a hat rail; and a terminal module mounted on the hat rail and embodied to monitor telegrams transmitted from the field device to the superordinate unit via the communication loop. The terminal module is further embodied to convert monitored telegrams into a second protocol and to output the converted telegrams. The system further includes a head module mounted on the hat rail and connected with the terminal module. The electronics unit of the head module is embodied to convert telegrams output from the terminal module into a third protocol to output them via the first network interface.

A coupling device that couples a first bus system to a second bus system configured to provide bidirectional communication between the first bus system and the second bus system comprising data transfer means for transmitting forward-directed data from the first bus system to the second bus system and for transmitting backward-directed data from the second bus system to the first bus system, data manipulation means for manipulating forward-directed data and/or backward-directed, and an instruction memory for storing manipulation instructions relating to the manipulation of data by the data manipulation means.

The disclosure provides a means for simplifying the configuration of network connection even when a plurality of control apparatuses are connected in a network. A control apparatus for controlling an object under control includes a first network controller and a second network controller for exchanging data according to a first communication protocol, and a packet transferring part for outputting a duplicate of a packet received by the first network controller from the second network controller and outputting a duplicate of a packet received by the second network controller from the first network controller.

A switch unit for an Ethernet network having a switch and a microprocessor, the switch including at least three ports, which are connected to inputs and outputs of the switch unit, a signal detector and generator for detecting and initiating a bus activity being arranged in each case between the ports and the inputs and outputs of the switch unit. For each input and output an allocation rule to the other inputs and outputs of the switch unit is stored in a memory, the switch unit being designed such that when a bus activity is detected at a signal detector and generator, the assigned inputs and outputs of this input and output are read out from the memory and the associated signal detectors and generators are woken up so that they generate a bus activity at their inputs and outputs.

A coupling device that couples a first bus system to a second bus system configured to provide bidirectional communication between the first bus system and the second bus system comprising data transfer means for transmitting forward-directed data from the first bus system to the second bus system and for transmitting backward-directed data from the second bus system to the first bus system, data manipulation means for manipulating forward-directed data and/or backward-directed, and an instruction memory for storing manipulation instructions relating to the manipulation of data by the data manipulation means.

A switch unit for an Ethernet network having a switch and a microprocessor, the switch including at least three ports, which are connected to inputs and outputs of the switch unit, a signal detector and generator for detecting and initiating a bus activity being arranged in each case between the ports and the inputs and outputs of the switch unit. For each input and output an allocation rule to the other inputs and outputs of the switch unit is stored in a memory , the switch unit being designed such that when a bus activity is detected at a signal detector and generator, the assigned inputs and outputs of this input and output are read out from the memory and the associated signal detectors and generators are woken up so that they generate a bus activity at their inputs and outputs.

The present application relates to the electronic field of railways, and in particular to the traction control system for electric multiple units. A host processor of the traction control system for electric multiple units is connected to a subordinate computer board via a CPCI bus. The traction control system for electric multiple units comprises a fast computing board, a network module and a debugging module. An instruction is passed to the subordinate computer board via the CPCI bus, and meanwhile, the subordinate computer board passes status information to the host processor via the CPCI bus to realize overall control on the interior of the traction control system for electric multiple units. Bidirectional communication between the signal sampling board and the fast computing board is realized by a high-speed differential LinkPort bus to realize quick control on the inverter power module and the four-quadrant power module. Bidirectional communication between the network card and boards of the I/O module is realized by a CAN bus, and digital signals and analog signals sent by boards of the I/O module are transferred to the host processor via the CPCI bus to ensure stability and reliability in information transmission of the traction control system for electric multiple units.

A process control arrangement (PKA), having a number of fieldbus systems (DP1, PA1, FH), especially different fieldbus systems (DP1, PA1, FH), and having a number of fieldbus interfaces (PAP1, PAP2, PAP3), wherein each of the fieldbus systems (DP1, PA1, FH) is connected to at least one of the fieldbus interfaces (PAP1, PAP2, PAP3), wherein the fieldbus interfaces (PAP1, PAP2, PAP3) serve for communication between the fieldbus systems (DP1, PA1, FH) and a communication plane (ET2) superordinated to the fieldbus systems, only a first of the fieldbus interfaces (PAP1) is directly connected to the superordinated communication plane (ET2), and wherein the fieldbus interfaces (PAP1, PAP2, PAP3) are connected in series with one another beginning with the first of the fieldbus interfaces (PAP1).

The present application relates to the electronic field of railways, and in particular to the traction control system for electric multiple units. A host processor of the traction control system for electric multiple units is connected to a subordinate computer board via a CPCI bus. The traction control system for electric multiple units comprises a fast computing board, a network module and a debugging module. An instruction is passed to the subordinate computer board via the CPCI bus, and meanwhile, the subordinate computer board passes status information to the host processor via the CPCI bus to realize overall control on the interior of the traction control system for electric multiple units. Bidirectional communication between the signal sampling board and the fast computing board is realized by a high-speed differential LinkPort bus to realize quick control on the inverter power module and the four-quadrant power module. Bidirectional communication between the network card and boards of the I/O module is realized by a CAN bus, and digital signals and analog signals sent by boards of the I/O module are transferred to the host processor via the CPCI bus to ensure stability and reliability in information transmission of the traction control system for electric multiple units.