| 摘要 |
<p>A numerical control system for controlling a machine tool (14) including a control device (12, 13) for controlling the machine tool (14); external portable storage device (1) for storing data; a disabling device (22) for disabling the control device (12, 13); a read/write device (20), operable when the external portable storage device (1) is manually coupled thereto, for reading data from the external portable storage device (1) and for writing data to the external portable storage device (1); and a determining device for determining whether the external portable storage device is coupled to the read/write device (20). The disabling device (22) disables the control device (12, 13) when the determining device determines that the external portable storage devices (1) not coupled to the read/write device (20). <IMAGE></p> |
