Controlling system

A controlling system, comprising:

• a motor;
• a movable body configured to be moved by the motor along a predetermined movement direction and configured to execute a predetermined operation for processing a target during a movement along the movement direction;
• a single detecting unit mounted on the movable body and configured to detect a first detection object and a second detection object during the movement of the movable body, the first detection object and the second detection object are separated from each other along the movement direction and configured to be detected by the detecting unit moving along the movement direction;
• a rotation amount information outputting section configured to output rotation amount information indicating a rotation amount of the motor;
• and
• a controller configured to execute:
• a moving process for moving the movable body by the motor along the movement direction;
• a rotation amount information obtaining process for obtaining first rotation amount information and second rotation amount information, the first rotation amount information being the rotation amount information outputted from the rotation amount information outputting section under a condition that the detecting unit detects the first detection object during the movement of the movable body in the moving process, the second rotation amount information being the rotation amount information outputted from the rotation amount information outputting section under a condition that the detecting unit detects the second detection object during the movement of the movable body in the moving process;
• a correction value calculating process for calculating a correction value indicating directly or indirectly an actual moving distance of the movable body per predetermined rotation amount of the motor, based on the first rotation amount information and the second rotation amount information obtained in the rotation amount information obtaining process and theoretical distance information indicating a design distance between the first detection object and the second detection object;
• and
• a moving distance calculating process for calculating a moving distance of the movable body by using the rotation amount information outputted from the rotation amount information outputting section and the correction value calculated in the correction value calculating process.