4-10 D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUALENERVISTA SOFTWARE INTERFACE CHAPTER 4: INTERFACES4Figure 4-11: Settings file properties window2. Enter the serial number of the D30 device to lock to the settings file in the Serial # Lock field.3. Click the OK button to apply the change.The settings file and corresponding secure FlexLogic equations are now locked to the D30 device specified by the serialnumber.4.1.8 Settings file traceabilityA traceability feature for settings files allows the user to quickly determine if the settings in a D30 device have beenchanged since the time of installation from a settings file. When a settings file is transferred to a D30 device, the date, time,and serial number of the D30 are sent back to EnerVista UR Setup and added to the settings file on the local computer. Thisinformation can be compared with the D30 actual values at any later date to determine if security has been compromised.The traceability information is only included in the settings file if a complete settings file is either transferred to the D30device or obtained from the D30 device. Any partial settings transfers by way of drag and drop do not add the traceabilityinformation to the settings file.Figure 4-12: Settings file traceability2The serial number and last setting change dateare stored in the UR-series device.The serial number of the UR-series device and the file transferdate are added to the setting file when setting filesare transferred to the device.842864A2.CDRCompare transfer dates in the setting file and theUR-series device to determine if securityhas been compromised.1 SETTING FILE TRANSFERREDTO UR-SERIES DEVICESERIAL NUMBER AND TRANSFER DATESENT BACK TO ENERVISTA ANDADDED TO SETTING FILE.
