the invention relates to a method for allocating a unique id to a node in a network making a request to that effect , wherein the requesting node generates an id and sends an id request comprising the id over the network , wherein each node in the network that already possesses said generated id will send an id ban comprising the generated id over the network in response to detection of said id request . the invention furthermore relates to a method for communication between objects in a network , in particular sensors , actuators and / or control objects . the invention furthermore relates to a method for controlling objects in a network , in particular sensors , actuators and / or control objects , wherein a controlling object sends a message comprising data on its characteristic variables over the network via data output means without being requested to do so .