The PC operating program DIGSI 4 is the user interface to the SIPROTEC devices. It is designed with a modern, intuitive user interface. With DIGSI 4, SIPROTEC devices are configured and evaluated – it is the tailored program for industrial and energy distribution systems. For the system engineering of DIGSI 4 parameterized devices the IEC 61850 system configurator is used. The IEC 61850 system configurator is the manufacturer-neutral solution for the interoperable engineering of IEC 61850 products and systems. The tool supports the SCL (substation configuration description language) configuration files from the IEC 61850-6 through import or export of all formats (ICD/IID/CID/SCD/SSD/SED). Thus, IEC 61850 devices can be added and a complete IEC 61850 station is available for the substation automation Technology.