Research of Motion Control System Based on PCI-1243

Based on the industrial PC, applying the motion control card PCI-1243, a control system of step motor is designed. It can be embedded different equipment to realize the digital control. The control system adopts Microsoft Visual Basic to write human-machine interface, through using movement function library of control-card and altering pulse frequency dynamically, the direction and the velocity of the motor are controlled to realize the stepper motor control in the open loop condition. The application shows that this system has the characteristics of low cost and good adaptability, and gets significantly effect.