Transfer system

A transfer system, comprising:

• a substrate positioning device including a mounting table rotatable about a rotation center, the substrate positioning device being configured to perform position alignment of a substrate placed on the mounting table;
• a plurality of robots configured to deliver the substrate to and from the substrate positioning device, the robots including a first robot and a second robot;
• and
• a plurality of robot control devices provided in a corresponding relationship with the robots and configured to control operations of the robots, the robot control devices including a first robot control device to which the first robot and the substrate positioning device are connected and a second robot control device to which the second robot is connected and the substrate positioning device is not connected,
• wherein the first robot control device includes an acquiring unit configured to acquire, from the substrate positioning device, at least an absolute deviation amount between the rotation center of the mounting table and a center position of the substrate positioned, and a transmitting unit configured to transmit correction information relying on the absolute deviation amount acquired by the acquiring unit, to the second robot control device to which the second robot is connected, and
• wherein the second robot control device includes an operation instructing unit configured to correct, pursuant to the correction information received from the first robot control device, teaching data required when the second robot moves toward the substrate positioning device and to operate the second robot pursuant to the corrected teaching data.