Abstract: A method is disclosed, in at least one embodiment, of putting into operation a system for determining the power flows by way of system components which are arranged at various places in a power distribution facility, in particular of an electrical power network, and are connected to one another by way of a communications network, it being possible for the characteristics of the electrical power network at these places and of the system components arranged at these places to differ from one another and the parameters and/or attributes of the system components to be respectively adapted to these differences in advance.

Abstract: A device for measuring a physical quantity in a wired electrical network, such as a local area network (LAN) or Ethernet, has a unique network address and a first interface connected to a wired network and configured to receive and transmit data. To reduce costs for materials and the complexity of cabling, the device further includes a switch for connection to an additional device and for forwarding data, preferably in the form of data packets, to the additional device. A system includes several such devices, arranged in a chain or ring topology, and can forward data to other such devices based on the device addresses. The disclosed device configuration eliminates expensive and difficult to install switches frequently required in the center of a star configuration.

Abstract: A network having a plurality of nodes (A-D) in which node-specific data for parameterizing and/or configuring a first one of the nodes (B1) is stored in a second one of the nodes (C1) of the network. Operation intervention by a user is unnecessary when replacing or repairing the first node (B1) since the node-specific data can be transmitted from the second node (C1) to the first node (B1). A node is preferably a measuring transducer including a sensor and a microprocessor. The measuring transducer also includes a memory for application programs and parameter values. The measuring transducer communicates with the network via an interface. The parameters may contain characteristics of the sensor and the network configuration of nodes.