| 摘要 |
A disk system that can be easily replaced, repaired, and maintained in the field of a factory when subjected to failure and an FA controller using such disk system. The disk system has two disk units. On a front panel of the disk system are an ON/OFF selector button, a copy instruction button, and the like. By operating these buttons, data of a disk unit in operation can be copied to a disk unit replaced after failure. In addition, disk life can be predicted by built-in integrating timers and the like. |
