Machine tool, diagnosis system for machine tool, and method of diagnosing machine tool

A machine tool comprising:

• an input interface configured to receive an instruction;
• an actuator configured to actuate based on the instruction;
• control circuitry configured to control an actuation of the actuator based on the instruction;
• a component having a physical state to be affected by the actuation of the actuator;
• a sensor configured to detect the physical state of the component;
• a computer connected to the control circuitry via an external communication interface, the computer being configured to
• receive a signal from the sensor,
• generate, based on the signal, rough state-description data relevant to an occurrence of an abnormality in the component,
• transmit the rough state-description data to the control circuitry,
• generate detailed state-description data based on the signal, the detailed state-description data being more informative than the rough state-description data such that the detailed state-description data facilitates identifying an abnormal part in the component, and
• transmit the detailed state-description data to a monitoring computer via a communication network, the monitoring computer being configured to analyze the physical state of the component;
• and
• an output interface configured to notify an operator of whether the abnormality is occurring in the component based on the rough state-description data transmitted to the control circuitry.