The 527F-BC barcode interface automates many aspects of CNC machine tool operation. Most commonly, it is used in conjunction with the networking capability of the control to load files from a server anywhere on the network. Files of up to 8 GB can be imported from a server or cloud storage location. Typical uses of automatic file transfer include using bar codes as part of a set-up sheet to load the correct file into a CNC in order to prevent an operator from accidentally running an unintended program. Tool and fixture offset tables can also be imported by scanning barcode labels resulting in significant time savings compared to manually typing data into the CNC. Custom macro operations are possible by creating bar code strings which are translated by the controller and executed with a single read of a bar code scanner. In addition, commonly used keyboard commands can be emulated using barcode data resulting in significant time saving during set-up and operation of the machine tool.