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The disturbance attenuation FRIT method for regulator problems tunes the control parameters so that the disturbance response follows the disturbance reference model output. We have recently proposed such a disturbance attenuation FRIT method using input-output data generated by disturbances. This paper applies the disturbance attenuation FRIT method to a PID control gain tuning for a speed and position control for DC motor. The proposed method focuses on the step-type disturbance, e.g. load change or additive step signal at input signal, which generates an initial one-shot input and output data for PID gains tuning. The efficiency of the proposed method is shown through the experimental results of a speed and position regulation control for DC motor against the step-type disturbances.