Some display screens are special.When the programming line button is pressed, it is necessary to re-enter the instrument setting before the setting can be successful. This programming line is only suitable for -CAN protocol motors after 2020, and motors produced before 2019 cannot be used. Operation introduction:1.First, the motor is connected and powered on 2.the motor is connected to the main line of the instrument 3.the interfaces at both ends of the programming cable are connected to the motor and the display screen respectively 4.the USB plug of the programming cable is connected to the USB interface of the computer or display screen 5.The programming line indicator lights up to indicate that the connection is successful. 6.If there is a 25 fault code after connecting, just the module button to return to normal. For some models, when the wheel diameter setting is switched, the wheel diameter size of the display screen does not change. At this time, you need to exit the setting and return to the main page of the display screen to re-enter the setting. Then you can see the wheel diameter you set. Color: As Shown Material: plastic Package Contents: 1 x Programming Line Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.