To successively and automatically carry out an address setting operation by each controller 11 of a creel apparatus 1 without using an address setting hardware such as a dip switch.

The yarn breakage detector 10 is composed of a plurality of serially connected controllers 11 corresponding to a plurality of yarn breakage sensors 9 for each supporting member 3a of a yarn feeding member 2, and a central processor 12 for monitoring the yarn breakage in the whole creel apparatus 1 and connected to the controllers. The central processor 12 outputs a signal containing address information to the controller 11 of the uppermost stream side. The uppermost controller 11 recognizes/memorizes the own address based on the inputted signal, acquires the address information of the following downstream-side controller based on the inputted signal information according to a prescribed operation procedure, and outputs a signal containing the address information to the following downstream-side controller 11. Each controller 11 successively sets the address to all following downstream controllers.