Method for defining a group from among bi-directional objects

A applied to the double power failure for synchronously to a target (90) is. Experienced is an and the the target, the transmitted comprises a group an information (92). Experienced the target, and target for realizing the set an information (94), then input end of the target is a part of the identifier is defined. The time of the starting application capable of being used as the reference time of each target to receive the limit of group. The limit of the group composed particularly for different target.