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 Intelligent Electronic Device being capable of exchanging data packages with one or more further Intelligent Electronic Devices (12B, 12C, 12D, 12E, 12F, 12G) of said Substation Automation system through a communication network of said Substation Automation system, comprising: - first computerized means configured to obtain first data (DATA 1) indicative of a change in the logical power and data flow between said Intelligent Electronic Device and said further Intelligent Electronic Devices, said first computerised means being configured to obtain said first data following a change in the physical layout of said power distribution network; - second computerized means configured to generate a configuration description file (124 NEW) for said Intelligent Electronic Device on the base of said first data, said configuration description file comprising a communication description data set (1240 NEW) including information related to the logical power and data flow between said Intelligent Electronic Device and said further Intelligent Electronic Devices, said information having been generated on the base of said first data, to reconfigure the communication capabilities of said Intelligent Electronic Device in relation to said further Intelligent Electronic Devices (12B, 12C, 12D, 12E, 12F, 12G) to take into account the change in the logical power and data flow of said communication network and allow said Intelligent Electronic Device to acknowledge the most adjacent Intelligent Electronic Devices in the new logical power and data flow of said communication network following the change in the physical layout of said power distribution network and operate to correct possible discrepancies between the logical and power data flow described in said configuration description file and the actual logical power and data flow of said communication network, thereby being able to receive blocking/consent messages from said most adjacent Intelligent Electronic Devices to isolate a fault; - third computerized means configured to store said configuration description file (124 NEW) in said Intelligent Electronic Device to replace a previously existing configuration description file of said Intelligent Electronic Device. - first computerized means configured to obtain first data (DATA 1) indicative of a change in the logical power and data flow between said Intelligent Electronic Device and said further Intelligent Electronic Devices, said first computerised means being configured to obtain said first data following a change in the physical layout of said power distribution network; - second computerized means configured to generate a configuration description file (124 NEW) for said Intelligent Electronic Device on the base of said first data, said configuration description file comprising a communication description data set (1240 NEW) including information related to the logical power and data flow between said Intelligent Electronic Device and said further Intelligent Electronic Devices, said information having been generated on the base of said first data, to reconfigure the communication capabilities of said Intelligent Electronic Device in relation to said further Intelligent Electronic Devices (12B, 12C, 12D, 12E, 12F, 12G) to take into account the change in the logical power and data flow of said communication network and allow said Intelligent Electronic Device to acknowledge the most adjacent Intelligent Electronic Devices in the new logical power and data flow of said communication network following the change in the physical layout of said power distribution network and operate to correct possible discrepancies between the logical and power data flow described in said configuration description file and the actual logical power and data flow of said communication network, thereby being able to receive blocking/consent messages from said most adjacent Intelligent Electronic Devices to isolate a fault; - third computerized means configured to store said configuration description file (124 NEW) in said Intelligent Electronic Device to replace a previously existing configuration description file of said Intelligent Electronic Device.