PLC as a kind of industrial control computer, with modular structure, flexible configuration, fast processing speed, accurate data processing capabilities, PLC also has a good ability to control the stepper motor, the use of its high-speed pulse output function or motion control function, control of the stepper motor can be realized. For those in the running process determine the moving distance and the speed of specific equipment, small make up think PLC by stepper motor drive to control the operation of stepper motor is a kind of ideal technology solutions. Stepper motor can step response and do not break the highest step frequency known as the 'start frequency'; Similarly, the 'stop frequency' refers to the system control signal suddenly shut off, step motor is not through the highest step frequency target location. And motor start frequency, stop frequency and output torque and the rotational inertia of the load. With these data, can effectively to the stepper motor speed control. PLC control of stepping motor, should according to the computing system of pulse equivalent, pulse frequency limit and the maximum number of pulses, and selection of PLC and its corresponding function module. According to the pulse frequency can determine the need when PLC high-speed pulse output frequency, according to the number of pulses can be sure of the PLC. Pulse equivalent = (Stepper motor step Angle x pitch)/ (360 x transmission ratio); Pulse frequency limit = (Movement speed by stepper motor fine fraction)/ pulse equivalent; Maximum pulse number = (Mobile distance x stepper motor fine fraction)/ pulse equivalent. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone: