A numerical controller for a machine tool is equipped with a decoding unit for analyzing a machining program and a plurality of auxiliary programs, a command element extraction unit for determining the presence or absence of a relationship between the auxiliary programs, a load computing unit for computing a processing time of the machining program and processing times of the plurality of auxiliary programs, an execution sequence computing unit for computing an execution sequence of the machining program and the plurality of auxiliary programs so as to execute the auxiliary programs that have the relationship with each other within the same execution cycle, and an execution processing unit for executing the machining program and the auxiliary programs in accordance with the computed execution sequence.

A numerical controller for a machine tool is equipped with a decoding unit for analyzing a machining program and a plurality of auxiliary programs, a command element extraction unit for determining the presence or absence of a relationship between the auxiliary programs, a load computing unit for computing a processing time of the machining program and processing times of the plurality of auxiliary programs, an execution sequence computing unit for computing an execution sequence of the machining program and the plurality of auxiliary programs so as to execute the auxiliary programs that have the relationship with each other within the same execution cycle, and an execution processing unit for executing the machining program and the auxiliary programs in accordance with the computed execution sequence.

A data processing device stores definition information for defining a processing operation of each of a plurality of execution processes, accepts, as a processing pattern, a selection of each of the execution processes that are used for data processing and a selection of an execution order the selected execution process, and generates, based on the accepted processing pattern and the definition information, processing setting information for causing the processing pattern.