| 摘要 |
<p>The present invention is provided with: a control CPU card (11) mounted with a control CPU chip (12) having a first core (14) and a second core (15), and a primary storage unit (13) that stores information; a standby CPU card (21) mounted with a standby CPU chip (22) having a first core (23) and a second core (25) and a primary storage unit (13) that stores information; and an interface (33) that performs communication for sharing information between the CPU cards (11, 21). In the control CPU card (11), when the first core (14) is normal, control computation is performed and the computation results are output, and when the first core is abnormal, the second core (15) is switched to being the control core, control computation is performed, and the output of the computation results is continued. When all of the cores (14, 15) are abnormal, system switching is performed from the control CPU card (11) to the standby CPU card (21).</p> |
