Numerical control device provided with a maintenance function when abnormal HMI

摘要

PROBLEM TO BE SOLVED: To provide a numerical control device capable of maintaining a sufficient function as maintenance use by using display from a CPU for numerical control even though an advanced graphic function using a HMI function cannot be corresponded to in a case that the HMI function cannot be operated.;SOLUTION: A numerical control device comprises: a CPU 11 for numerical control; a CPU 14 for HMI for executing an operation system for achieving a HMI function, and application software, and outputting a display command of graphic data; and a display circuit 12 for performing display in an indicator 20 by the display command. The CPU 11 for numerical control includes: a maintenance function during HMI abnormality which monitors operations of an operating system, the application software and the CPU 14 for HMI, and outputs a display command of display data to be used for maintenance work in the display circuit 12 in a case of detecting abnormality of any of the operating system, the application software and the CPU 14 for HMI.;COPYRIGHT: (C)2014,JPO&INPIT