COMMUNICATION SYSTEM, CONTROLLER, CAN BUS CONNECTION NODE, CAN BUS COMMUNICATING METHOD AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a bus communication system which determines the priority, based on a transmission source ID.;SOLUTION: A communication apparatus 10 writes own node ID as the transmission source ID in an arbitration field of a message packet to be sent out on a bus, writes a destination node ID in an auxiliary field defined at a given position in the message packet, and sends out the message packet. A controller 30 replaces and rewrites the node IDs written in the arbitration field and the auxiliary field of the message packet sent from the communication apparatus 10 and sends out the resultant message packet on the bus. The communication apparatus 20 receives the message packet on the bus through the controller 30 based on the coincidence of the rewritten node ID in the arbitration field with own node ID.;COPYRIGHT: (C)2005,JPO&NCIPI