A selectable mode of operation is disclosed for an X-ray computer tomograph for producing angiographical images. Work content for each of steps of the work to be carried out on a product is stored as moving image data in a storage unit. If so, the controller may generate a remote service to perform the multiple tasks on the common server, without requiring intermediate transfer of data between a local server on which the controller is running and the common remote server. Noise may be reduced, and because the motor may rotate at a high speed, motor performance may not be degraded under low temperature circumstances. The Fc, Q andor other important filter parameters are then adjusted by generating digital control signals that can be converted to analog signals using Digital-to-analog Converters.