Numerical controller with program presentation function depending on situation

A numerical controller which performs MDI operation control based on an MDI program, the numerical controller comprising:

• an operation history information storage area configured to store operation history information including status data representative of a status of the numerical controller in association with the MDI program;
• an MDI operation command unit configured to command execution of an operation according to the MDI program based on a user's operation;
• an operation execution unit configured to perform the operation based on the MDI program in response to the command from the MDI operation command unit;
• a status acquisition unit configured to acquire the status data representative of the status of the numerical controller;
• an operation history recording unit configured to generate the operation history information by associating the MDI program executed by the MDI operation execution unit and status data at the time of execution of the MDI program acquired by the status acquisition unit and record the generated operation history information into the operation history information storage area;
• and
• an operation history information scoring unit configured to score the similarity between the status data acquired from the status acquisition unit and the status data of the operation history information recorded in the operation history information storage area and output the operation history information associated with the result of the scoring to the MDI operation command unit,
• wherein the MDI operation command unit displays information on MDI programs of the operation history information sorted based on the result of the scoring and commands execution of an MDI operation according to the MDI program selected or input by the user, based on the user's operation.