A method (100) of route selection in a wireless communication system and a control system (40) is provided. The method includes selecting a route between a first node (1) and a second node (2) and comprises: —evaluating (110) a plurality of possible routes (R1, R2, R3, R4), at least one route (R2, R3, R4) including a third node (3, 4) between the first and the second node; and —selecting (160) the route that has the lowest latency among the possible routes. Especially the method (100) includes: —selecting (120) parameter settings for each link of the possible routes, said selecting (120) comprising; —selecting (130) the length of the cyclic prefix, —evaluating (140) combinations of the selected cyclic prefix and different settings of the at least one further parameter of the physical layer; —selecting (150) the parameter settings that has lowest estimated latency and fulfils at least one communication quality criterion.

In an automation system, a protocol converter is provided between a first network and a second network for converting safety-related messages between the first and second networks that use different network protocols for message exchange. In the protocol converter, a single-channel filter connected to a single-channel interface determines messages having a first safety communication protocol from messages received from the interface over the first network and messages having a second safety communication protocol received over the second network. An at least dual-channel safety module connected to the single-channel filter then converts the messages with the first safety communication protocol determined by the single-channel filter into messages with the second safety communication protocol, or converts the messages with the second safety communication protocol determined by the single-channel filter into messages with the first safety communication protocol.

Techniques are disclosed relating to limiting power in Power over Data Line (PoDL) networks. In an embodiment, an apparatus includes a voltage terminal including a first pole and a second pole, a first line for connecting the first pole to a first terminal of a physical layer of a microelectronic component, and a second line for connecting the second pole to a second terminal of the physical layer. The apparatus may further include a switch element in each of the first and second line, where each switch element is connected to and controllable by a control unit and the control unit includes a microprocessor. The apparatus may further include a voltage measurement unit configured to measure a voltage drop over each switch element and supply the voltage drop to the microprocessor.

A device for coupling a fieldbus to a local bus for connection to at least one data bus subscriber, the device comprising a first unit that is connectable to the fieldbus and is adapted for sending and receiving data via the fieldbus; a second unit that is connectable to the local bus and is adapted for sending and receiving data via the local bus in at least one data packet; a data management unit that is connected to the first unit and the second unit, wherein the data management unit is adapted for transferring first symbols from data received via said first unit to said second unit in a sequence-dependent manner; and wherein the second unit is adapted to send at least one data packet including the first symbols on the local bus. In addition, a corresponding method for transferring data is described.

To solve the problem of still being able to use an inexpensive network controller which can store only a single transmission time, even when telegrams from a plurality of application modules need to be sent in synchronized fashion and the transmission times thereof need to be reliably ascertained and reliably associated with the respective telegrams, provided is a communication device for the synchronized sending of telegrams, a communication system including such a communication device, and a method for the synchronized sending of telegrams. The communication device comprises a coordination device.

In an embodiment, the infrastructure comprises a script execution module that comprises a compiler that compiles scripts, having instructions that reference device properties, into virtual-machine programs, a virtual machine that executes virtual-machine programs, and a script manager that stores scripts, retrieves scripts, and loads scripts into the compiler. In addition, the infrastructure may comprise gateway(s), communicatively connected to physical device(s). The gateway(s) may each comprise processor(s), driver(s) that each communicate with at least one physical device using a communication protocol to read and/or write device properties of the physical device, and a device manager that maps device properties referenced in the virtual-machine programs to device properties used by the driver(s).

An automation system has a plurality of subscribers including a first master unit, first distributor, second master unit, second distributor, and at least another subscriber unit. First and second transmitting/receiving devices of the first and second distributor are connected via a ring-shaped data bus. In a first mode, the first distributor forwards telegrams received from the first master unit to the first transmitting/receiving device, and forwards telegrams received by the second transmitting/receiving device to the first master unit. The second distributor also forwards first telegrams received by the first transmitting/receiving device to the second transmitting/receiving device. In a second mode, the second distributor forwards telegrams received by the second master unit to the second transmitting/receiving device, and the second distributor forwards telegrams received by the first transmitting/receiving device to the second master unit. The first distributor also forwards telegrams received by the second transmitting/receiving device to the first transmitting/receiving device.

A system and method for diagnosing connection and communication in an industrial machine. The electronic processing system includes a CAN bus, an ethernet network, and a plurality of devices connected to the CAN bus and the ethernet network. The plurality of devices includes at least one controller programmed to run one or more software applications. A connectivity check is performed to obtain CAN connection status data and ethernet connection status data for the plurality of devices. The CAN connection status data and the ethernet connection status data is analyzed to determine a likely cause of a device connection issue. A solution to the device connection issue is output to a user based on the analyzed data.

This control system is provided with a controller, a controller which is a loopback communication device, a first communication route, and a second communication route. The controller generates and transmits control frames to slave devices. The controller performs loopback communication of the control frames. In the first communication route, multiple slave devices are connected between the controller and the controller using communication cables. In the second communication route, the first controller and the second controller are connected over a communication cable.

The invention relates to a system for establishing a data connection between a master unit (M) and at least one device unit (D), wherein the master unit (M) is coupled to a primary coupler unit (D.sub.prim) and the at least one device unit (D) is coupled to a secondary coupler unit (D.sub.sec), in each case for electrical power transmission and for data transmission. The primary coupler unit (D.sub.prim) and the secondary coupler unit (D.sub.sec) can be coupled for data transmission. A control signal can be received and the system has three operating states that can be activated in dependence on the received control signal. When the first operating state is activated, there is a data connection according to the IO-Link standard between the master unit (M) and the device unit (D). When the second operating state is activated, primary coupler identification data (D.sub.prim-ID) are allocated to the primary coupler unit (D.sub.prim), wherein there is a data connection according to the IO-Link standard between the master unit (M) and the primary coupler unit (D.sub.prim). When the third operating state is activated, secondary coupler Identification date (D.sub.secID) are allocated to the secondary coupler unit (D.sub.sec), wherein there is a data connection according to the IO-Link standard between the master unit (M) and the secondary coupler unit (D.sub.sec). The invention furthermore relates to a method for operating the system.