Abstract: A method for delayed cyclic forwarding of messages by a system includes: receiving, by an input side of the system, the messages to be forwarded; and sending, by an output side of the system, the messages to be forwarded to a receiving device. A check is performed to determine whether the difference between a current system time and a receive time of a message under consideration is greater than or equal to the delay time. In the event that the difference is greater than or equal to the delay time, the message that has been in the buffer memory for the next longest time being checked in the same manner, and the checking of the messages is continued until a difference smaller than the specified delay time is found for a message.

Abstract: A test assembly for testing a control device using a message includes: a receiver configured for receiving the message in fragments, wherein each fragment has a first identifier, which denotes a chronological order of the respective fragment in the message, and a second identifier; a buffer memory configured for storing the fragments on the basis of the first and second identifiers, wherein the second identifier causes all the fragments of the message to be recorded in the buffer memory in time to allow the message to be manipulated before the first fragment of the message is to be sent to the control device; a manipulator configured for modifying the message on the basis of predetermined data; and a transmitter configured for sending the modified message to the control device.

Abstract: A method for transforming recorded communication data by means of a first program, wherein the communication data is given by messages from a network or bus communication, wherein the recorded communication is carried out on the basis of a first communication matrix, wherein the recorded communication data is provided to be sent by means of a test system to an ECU under test, wherein the test system is connected via a first communication link to the ECU under test, wherein the ECU under test is configured based on a second communication matrix.

Abstract: A method for delayed cyclic forwarding of messages by a system includes: receiving, by an input side of the system, the messages to be forwarded; and sending, by an output side of the system, the messages to be forwarded to a receiving device. A check is performed to determine whether the difference between a current system time and a receive time of a message under consideration is greater than or equal to the delay time. In the event that the difference is greater than or equal to the delay time, the message that has been in the buffer memory for the next longest time being checked in the same manner, and the checking of the messages is continued until a difference smaller than the specified delay time is found for a message.

Abstract: A method for monitoring message packets that are exchanged between at least two control units. The message packets are concatenated in a data stream and each have an identifier, a payload, and a length specification of the payload described by a data item of predefined word size. The at least two control units are connected by a distributor. The distributor is connected by a first distributor port to a first of the at least two control units, is connected by a second distributor port to a second of the at least two control units, and is connected by a third distributor port to a computer system. The data stream flows through the first and distributor port for communication between the first node and the second node. The computer system has a memory, and information on the respective identifiers of the message packets is stored in the memory.

Abstract: A method for monitoring message packets that are exchanged between at least two control units. The message packets are concatenated in a data stream and each have an identifier, a payload, and a length specification of the payload described by a data item of predefined word size. The at least two control units are connected by a distributor. The distributor is connected by a first distributor port to a first of the at least two control units, is connected by a second distributor port to a second of the at least two control units, and is connected by a third distributor port to a computer system. The data stream flows through the first and distributor port for communication between the first node and the second node. The computer system has a memory, and information on the respective identifiers of the message packets is stored in the memory.