Communication controller

Operation of an NC device can be restricted during the time until processing requested by a transmitting side is completed by a receiving side. An information processing device communicatively connected to a controller of an industrial machine including a processing request transmission unit that transmits a processing request to the controller; a processing completion notification management unit that detects a processing completion notification, transmitted from the controller, which notifies of completion of processing according to the processing request; and an operation restriction control unit that restricts processing request operation of the controller for a next operation until the processing completion notification is detected by the processing completion notification management unit.