| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an information processing apparatus, capable of ensuring time synchronization accuracy, ensuring EtherCAT command consistency, and facilitating developing of software based on a 2-port configuration, even when a communication path error occurs. <P>SOLUTION: The information processing apparatus includes an arithmetic section, at least two communication sections each including a transmission section and a reception section, and a redundant communication control section that controls a communication path between the arithmetic section and the communication section. The redundant communication control section includes a communication path state determination section that determines a network path state and a redundant path switching section that switches connection between the arithmetic section and at least two communication sections. The network provides a logical ring topology for a packet communication path. The redundant path switching section switches a communication path between the communication sections and a communication path between the communication section and the arithmetic section, on the basis of the communication path state determined by the communication path state determination section. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
