ENCODER SPECIFYING METHOD AND DRIVER

A method for specifying an encoder attached to a motor that is a target of control processing performed by the driver using encoder detection in a predetermined communication state in which the driver is able to communicate with the encoder, and the motor is able to transmit and receive a signal between the encoder and a winding of the motor. The method includes a first step of connecting the driver and the motor by a power line, a second step of transmitting first identification information for identifying a transmission side in the driver and the motor from the transmission side to a reception side through the power line between the driver and the motor connected by the power line, and a third step of specifying the encoder corresponding to the driver with respect to the control processing using at least the first identification information.