Abstract: A method for operating a redundant communication network with network participants includes the steps of determining by network participants to which network channels they are connected and using a telegram for said determining by the network participants to which network channels they are connected.

Abstract: A method for controlling an installation, wherein a controller controls at least one first installation unit and a second installation unit and wherein a real-time bus is used for communication between the at least one first installation unit and the controller, and communication between the controller and the at least one first installation unit is effected via real-time datagrams. The controller conveys datagrams to the second installation unit via the real-time bus, these datagrams being conveyed via a non-real-time channel and these datagrams being prioritized with respect to other messages sent via the NRT section of the real-time bus.

Abstract: With a method for synchronization in a communication system that includes a central participant and at least one further participant, at least one of the further participants being synchronized with the central participant, and, to this end, a telegram with synchronization information being transmitted by the central participant to the at least one further participant, particularly efficient synchronization of the at least one participant with the central participant results due to the fact that the telegram is a data telegram.

Abstract: With a method for synchronization in a redundant communication system that includes a central participant and at least one further participant, at least one of the further participants being synchronized with the central participant, and, to this end, at least two telegrams containing synchronization information being transmitted by the central participant to the at least one further participant, if there is a transmission error involving a telegram containing synchronization information, it is still possible to carry out synchronization due to the fact that, based on the synchronization information contained in the at least two telegrams, resultant synchronization information is obtained and is used to synchronize the further participants with the central participant.

Abstract: A method for data transmission between participants communicating by means of a data bus, in which as high a transmission likelihood for additional data as possible is to be assured by providing that in the exchange of data telegrams between the participants within the cycle time 13a predetermined for one transmission cycle 13, at least one first and at least one second time slot 11, 12 are used, and the first time slot 11 serves to forward process data and the second time slot 12 serves to forward additional data, and the length of the data telegrams representing the additional data is predeterminable within the length of the corresponding time slot 12.

Abstract: A network station for a data network for receiving external data and for transmitting device-internally prepared data has a repeater for transmitting an external data packet received at a data input to a data output, a first data preparation unit for transmitting an internal data packet generated from the prepared data via the data output, having a switching device for interrupting the data path between the data input and the data output, a control unit that is connected to the switching device in order, in a first operating mode, to block the transmission of the received external data packet via the data output if the internal data packet is currently being transmitted via the data output by the data preparation unit, and to permit the transmission of the received data packet by the repeater via the data output if no internal data packet is currently being transmitted via the first data preparation unit.

Abstract: A method for regulating a transmission of a quantity of user data between a plurality of users of a communication system via a field-bus system is provided, in which method the individual users communicate by way of data telegrams, each data telegram containing at least one destination address, one source address and a quantity of user data not exceeding a predefined, maximum quantity. In the event the maximum quantity of user data predefined for one data telegram is less than the quantity of user data to be transmitted, the quantity of user data to be transmitted is fragmented into a plurality of partial telegrams, and the respective partial telegrams are transmitted one after another in a defined sequence of partial telegrams.

Abstract: A method for operating a redundant communication network with network participants includes determining—via a telegram—by network participants to which network channels they are connected.

Abstract: With a method for synchronization in a redundant communication system that includes a central participant and at least one further participant, at least one of the further participants being synchronized with the central participant, and, to this end, at least two telegrams containing synchronization information being transmitted by the central participant to the at least one further participant, if there is a transmission error involving a telegram containing synchronization information, it is still possible to carry out synchronization due to the fact that, based on the synchronization information contained in the at least two telegrams, resultant synchronization information is obtained and is used to synchronize the further participants with the central participant.

Abstract: Transmission of data in a communication system including a central participant and at least one further participant includes transmitting the data via telegrams from the at least one further participant to the center participant, transmitting the telegrams by the central participant to the at least one further participant before being sent out by the at least one further participant, adding by the central participant a predetermined entry in the telegram in at least one location assigned to the at least one further participant, and adding by the at least one further participant to the telegram the data to be transmitted to the central participant such that the entry added by the central participant is at least partially overwritten.

Abstract: With a method for synchronization in a communication system that includes a central participant and at least one further participant, at least one of the further participants being synchronized with the central participant, and, to this end, a telegram with synchronization information being transmitted by the central participant to the at least one further participant, particularly efficient synchronization of the at least one participant with the central participant results due to the fact that the telegram is a data telegram.

Abstract: A method for allocating a device address in a network to a substation connected by a point-to-point connection includes transmitting an initialization message from a main station to a substation, which message contains a part of the device address, determining a set communication address of the substation, generating a complete device address based on a received part of the device address and based on the communication address, and transmitting a response mesasge from a device to the main station, which response message contains an address selected from the group consisting of the communication address, the device address, and both.

Abstract: A method for allocating a device address in a network to a substation connected by a point-to-point connection includes transmitting an initialization message from a main station to a substation, which message contains a part of the device address, determining a set communication address of the substation, generating a complete device address based on a received part of the device address and based on the communication address, and transmitting a response mesasge from a device to the main station, which response message contains an address selected from the group consisting of the communication address, the device address, and both.

Abstract: A method for data transmission between participants communicating by means of a data bus, in which as high a transmission likelihood for additional data as possible is to be assured by providing that in the exchange of data telegrams between the participants within the cycle time 13a predetermined for one transmission cycle 13, at least one first and at least one second time slot 11, 12 are used, and the first time slot 11 serves to forward process data and the second time slot 12 serves to forward additional data, and the length of the data telegrams representing the additional data is predeterminable within the length of the corresponding time slot 12.