| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a communication system, communication apparatuses and a communication method, wherein, each communication apparatus is bus-connected separately to two communication lines different from each other, the each communication apparatus is connected separately with two communication apparatuses in one to one manner to form a loop connection, thereby forming a flexible configuration achieving high speed and failure resistance even when the configuration uses existing protocols. <P>SOLUTION: The respective communication apparatuses 1, 2a have different connection sections, respectively, are bus-connected separately to the communication lines 3a, 3b, 3e, and when one of the communication apparatuses breaks down and so on, the connection section which has become incommunicable is replaced by a loopback section. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
