| 摘要 |
PROBLEM TO BE SOLVED: To receive data transmitted from a node with high data transfer speed even at a node with low data transfer speed by constituting nodes by providing an area in which information to indicate the node at a transmitting origin by which the transmission is performed at present is stored. SOLUTION: The nodes mutually connected via a transmission bus are provided with storage means to store identification information to indicate the node at the transmitting origin by which data transmission is performed on the transmission bus at the present moment. In this system, the contents of a talker register at an IRM node B are read by using asynchronous transmission by a transmission and reception controller at a node C. Thus, an identification ID of a transmission node A is acquired as a talker ID by which the transmission is performed in a transmission channel which is desired to be received at present by the transmission and reception controller at the node C. Namely, an ID of the node at the transmitting origin by which the transmission is performed in the transmission channel on the transmission bus at the present moment is learned.
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