ANALYSING DATA COMMUNICATION IN A PROCESS CONTROL OR A SUBSTATION AUTOMATION SYSTEM

The present invention is concerned with a method and an engineering tool for analyzing a communication of secondary devices (205, 210) in a Substation Automation System (200) for a substation (100), wherein the secondary devices are connected to a communication network for controlling an industrial process, which industrial process comprises a plurality of operational aspects of primary devices, wherein sender secondary devices are configured to send data packets, which comprise a multitude of data objects, to predetermined receiver secondary devices via the communication network, wherein the data packets transmitted via the communication network are captured, a functional interrelation or operational aspect of the secondary devices and the primary devices is retrieved from an SCD-file (250) representing the formal configuration of the substation is retrieved, and the secondary devices are grouped according to the retrieved operational aspect and a time sorted graphical representation of the data objects, the secondary devices and the operational aspects is generated.