The control method of the traditional stepper motor is that the drive receives pulses to control the operation of the motor. At present, for some applications with high requirements, the pulse type control method can no longer meet the demand, and the fieldbus type control is required.

Compared with the pulse type, the fieldbus type is not only much easier in wiring, but also relatively simple to write the control program. Moreover, it can also monitor the running state of the motor and change the motor current and micro-stepping at any time, and simple control of acceleration and deceleration, analogue synchronous command, offline control, etc.