Numerical control system having a display unit and machine tool controlled by the system.

摘要

Message sentences are successively displayed on a display unit (1) such as a CRT according to an operator control procedure, and control items or selected items are displayed on the display unit (1) as menu sentences dependent on or independently of the messages. The operator selects a desired item from the displayed items. Atthe time of generating a program, erroneous operations by the operator are checked against predetermined priority orders of operating modes. Only addresses necessary for the operating modes are used so that the control procedure is patternized.