C-18 L30 Line Current Differential System GE MultilinC.5 IEC 61850 IMPLEMENTATION VIA ENERVISTA UR SETUP APPENDIX CCC.5.4 CREATING AN ICD FILE WITH ENERVISTA UR SETUPAn ICD file can be created directly from a connected L30 IED or from an offline L30 settings file with the EnerVista URSetup software using the following procedure:1. Right-click the connected UR-series relay or settings file and select Create ICD File.2. The EnerVista UR Setup will prompt to save the file. Select the file path and enter the name for the ICD file, then clickOK to generate the file.The time to create an ICD file from the offline L30 settings file is typically much quicker than create an ICD file directly fromthe relay.C.5.5 ABOUT SCD FILESSystem configuration is performed in the system configurator. While many vendors (including GE Multilin) are working theirown system configuration tools, there are some system configurators available in the market (for example, Siemens DIGSIversion 4.6 or above and ASE Visual SCL Beta 0.12).Although the configuration tools vary from one vendor to another, the procedure is pretty much the same. First, a substationproject must be created, either as an empty template or with some system information by importing a system specificationfile (SSD). Then, IEDs are added to the substation. Since each IED is represented by its associated ICD, the ICD files areimported into the substation project, and the system configurator validates the ICD files during the importing process. If theICD files are successfully imported into the substation project, it may be necessary to perform some additional minor stepsto attach the IEDs to the substation (see the system configurator manual for details).Once all IEDs are inserted into the substation, further configuration is possible, such as:• Assigning network addresses to individual IEDs.• Customizing the prefixes of logical nodes.• Creating cross-communication links (configuring GOOSE messages to send from one IED to others).When system configurations are complete, the results are saved to an SCD file, which contains not only the configurationfor each IED in the substation, but also the system configuration for the entire substation. Finally, the SCD file is passedback to the IED configurator (vendor specific tool) to update the new configuration into the IED.The SCD file consists of at least five major sections:
