Position control device based on programmable logic controller

A device for controlling a position based on a programmable logic controller (PLC), the device comprising:

• a motor driving module configured to drive a motor to move a movable object;
• an input module configured to input a position command for determining a target position of the movable object;
• and
• a control module configured to output a driving pulse for operating the motor driving module based on the position command,
• wherein the control module includes:
• a profile creation unit configured for creating the position profile based on the position command when a first position calculation interrupt is generated in a first position control period;
• a pulse calculation unit configured for calculating a number of outputs of the driving pulse to be output in a second position control period following the first position control period based on the position profile;
• and
• a driving controller configured for outputting the driving pulse having the number of outputs calculated by the pulse calculation unit to the motor driving module when a second position calculation interrupt notifying a start time-point of the second position control period is generated.