A support device that supports creation of a user program which is executed by an industrial control device, a control method of the support device and a non-transitory computer-readable recording medium are provided. According thereto, overall programs including a sequence program and an NC program can be easily understood. In an embodiment, a tool includes a display control unit that displays a sequence program and an NC program which are to be synchronously executed on a single screen in an editable manner.

A tool path generating device for generating a machining program is provided with a determining unit which determines whether or not the effective cutting length of a tool would be insufficient if machining were performed using a first tool path, and an estimating unit which estimates a section of insufficiency, being the section in which the effective cutting length of the tool is insufficient. The tool path generating device is provided with a post-move travel path generating unit which generates a post-move tool path in which the path corresponding to the section of insufficiency has been moved relative to the first tool path to a path whereby the section of insufficiency can be machined using the section of the tool within the effective cutting length, and an auxiliary path generating unit which generates an auxiliary tool path for machining the uncut section remaining in the workpiece.

A numerical controller of the invention analyzes a relation between a plurality of pieces of tool dimension data and a plurality of tool offset values and detects whether a tool offset value is an outlier on the basis of tool dimension data of a subject tool and a tool offset value received by an offset value input unit.