The compare plugin allows for a complete comparison of two SCL documents and gives a hierarchial list of differences using the SCL structure shown in IEC 61850-6.
Users may compare only particular elements and specify these in considerable detail. Comparisons can occur between one or more documents. Pre-defined filters are available for common use cases and users may create new filters as well as export and import filters to allow them to be shared (the filters are saved as JSON files)
Comparisons on large files may take a considerable time - 10-15 minutes on a high powered machine with 16 Gb RAM and no other browser tabs or applications open. SCL files for even small substations can have many hundreds of thousands of elements. Comparisons between files with only a small number of IEDs should take < 10 seconds.