Fieldbus device, application-specific integrated circuit, process for receiving at least portions of multiple fieldbus messages, and, field-readable computer bus program in the middle

摘要

"FIELD BUS DEVICE, SPECIFICALLY INTEGRATED APPLICATION CIRCUIT, PROCESS TO RECEIVE AT LEAST PORTIONS OF MULTIPLE FIELD BUS MESSAGES, AND THE FIELD BUS COMPUTER PROGRAM IN LEGABLE MEANS BY COMPUTER". A method and apparatus are provided to allow at least portions of two fieldbus messages to be stored in a fieldbus device (30). The fieldbus device (30) includes a media access unit (32), a fieldbus communication controller (34) and a controller (36). The media access unit (32) is attachable to a fieldbus loop (12) to receive fieldbus signals and provide digital data flow related to fieldbus signals. The fieldbus communication controller (36) gathers data segments related to at least portions of two fieldbus messages from the bit stream and stores the segments in a receiving FIFO memory (46). The controller (36) is adapted to read the segments from the FIFO receiving memory (46) and act on the fieldbus messages.