4-10 L30 Line Current Differential System GE Multilin
4.2 EXTENDED ENERVISTA UR SETUP FEATURES 4 HUMAN INTERFACES
4
8. Right-click the setting file in the Offline Window area and select the Edit Settings File Properties option. The window
opens.
Figure 4–10: TYPICAL SETTINGS FILE PROPERTIES WINDOW
9. Enter the serial number of the L30 device to lock to the settings file in the Serial # Lock field.
10. Click the OK button to apply the change. The serial number is not validated.
The settings file and corresponding secure FlexLogic equations are now locked to the L30 device specified by the serial
number.
4.2.3 SETTINGS FILE TRACEABILITY
A traceability feature for settings files allows the user to quickly determine if the settings in a L30 device have been
changed since the time of installation from a settings file. When a settings file is transferred to a L30 device, the date, time,
and serial number of the L30 are sent back to EnerVista UR Setup and added to the settings file on the local PC. This infor-
mation can be compared with the L30 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 L30
device or obtained from the L30 device. Any partial settings transfers by way of drag and drop do not add the traceability
information to the settings file.
Figure 4–11: SETTINGS FILE TRACEABILITY MECHANISM
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The serial number and last setting change date
are stored in the UR-series device.
The serial number of the UR-series device and the file transfer
date are added to the setting file when setting files
are transferred to the device.
842864A2.CDR
Compare transfer dates in the setting file and the
UR-series device to determine if security
has been compromised.
1
SETTING FILE TRANSFERRED
TO UR-SERIES DEVICE
SERIAL NUMBER AND TRANSFER DATE
SENT BACK TO ENERVISTA AND
ADDED TO SETTING FILE.
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