Abstract: A device suitable for use as a module in a Controller Area Network (CAN) system with a bus or connection includes relatively simple and inexpensive components, including an oscillator that generates a number of different frequencies in response to directions from a microcomputer. A CAN Controller receiving the frequencies is connected to the bus via a transceiver. The device has utility for verification and validation work in association with a CAN system.

Abstract: In a more efficient distributed control or monitoring arrangement there are devices in control, monitoring and/or vehicle systems that comprise locally deployed module units that carry out one or more functions, and one or more links connecting the units. The respective module unit is connected to a link via a connection arrangement or a connection point and requisite communication device for the CAN protocol. A CAN control unit is arranged to receive indication of falling edges on the bus in question, and to carry out measurement of the time between falling edges using clock pulses in its clock function. Information from two or more such measurements forms the basis for calculation of a bit frequency currently used in communication on the bus by active module units connected to the same.

Abstract: A device suitable for use as a module in a Controller Area Network (CAN) system with a bus or connection includes relatively simple and inexpensive components, including an oscillator that generates a number of different frequencies in response to directions from a microcomputer. A CAN Controller receiving the frequencies is connected to the bus via a transceiver. The device has utility for verification and validation work in association with a CAN system.

Abstract: An arrangement comprises a number of units that can communicate with each other via at least one wireless connection system for the transmission of messages. The connection system works with first and second reception areas. A time slot system is established in a first reception area, in which system the units have access to the transmission media in question in allocated and sequential time intervals, during which the units are activated for their respective transmissions and receptions using time information executed in the time slot system, which time information refers to one or more reference times utilized in the time slot system.