SCADA Communications P44x/EN SC/Hb6MiCOM P40 Agile P442, P444 (SC) 12-25Figure 3: Manual selection of a disturbance record3.6.2.2 Automatic extraction procedureThere are two methods that can be used for automatically extracting disturbances. Option 1is simpler and is better at extracting single disturbance records, i.e. when the disturbancerecorder is polled regularly. Option 2, however, is more complex to implement but is moreefficient at extracting large quantities of disturbance records. This may be useful when thedisturbance recorder is polled only occasionally and hence may have many stored records.3.6.2.3 Automatic extraction procedure – option 1The procedure for the first method is shown in the following figure. This also shows theacceptance of the disturbance record once the extraction is complete.