To easily find an abnormal core wire in the case where transmission/ receiving of a signal becomes impossible because of breakage of signal transmission core wires connected to a terminal part as the number of the signal transmission core wires for control is small, and prevent generation of malfunction by noise, etc., from a power supply cable, etc.

This yarn manufacturing facility is provided with a yarn spinning device 1, take up devices 3, 4 to take up yarns by plural rollers, and a winding device 6. In this case, a number of input/output signals necessary for each action of parts contributing to normal winding in the winding device 6 and parts contributing to changing yarn from a bobbin continuously winding into a new bobbin are converted from parallel to serial signal or from serial to parallel signal by I/O modules 23 and 24, and transmission/receiving of signals with the controller 15 of a control panel is performed through a four-core cable.