1. A configuration module for automatically configuring the communication capabilities of an Intelligent Electronic Device of a Substation Automation system for an electric power distribution network, said Electronic Device being capable of exchanging data packages with one or more further Intelligent Electronic Devices of said Substation Automation system through a communication network of said Substation Automation system, characterized in that it comprises: first computerized means configured, responsive to a change in a physical layout of the power distribution network, to obtain first data indicative of a corresponding change in a logical power and data flow between said Intelligent Electronic Device and a one or more of said further Intelligent Electronic Devices immediately positioned upstream and downstream with respect to said Intelligent Electronic Device in the logical power and data flow; second computerized means configured to generate a configuration description file for said Intelligent Electronic Device on the base of said first data, said configuration description the comprising a communication description data set including information, which has been generated on the base of said first data to describe the change in the logical power and data flow between said Intelligent Electronic Device and said further intelligent Electronic Devices; third computerized means configured to store said configuration description the in said Intelligent Electronic Device to replace a previously existing configuration description the for said Intelligent Electronic Device, wherein said Intelligent Electronic Device is configured to distinguish or acknowledge messages transmitted by the one or more of said further Intelligent Electronic Devices immediately positioned upstream and downstream with respect to said Intelligent Electronic Device in the logical power and data flow, based on said communication description data set in said stored configuration description file.