No specific control module? use less specific one

In order to offer the device control and communication to one or more control devices in a multi-equipment network, If attachment of the new equipment which should be controlled by a device control module is detected, such a device control module will be discovered and control will be assigned to such a device control module. Especially -- first -- the above -- a device control module peculiar to new equipment is looked for. When such a peculiar device control module is not discovered, as for the above-mentioned network, existence of the low device control module of indigenity is investigated -- the above -- control of new equipment is assigned to the low device control module of the above-mentioned indigenity.