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8.2 SETTINGS SECURITY
The following window is displayed.
3.
Enter the serial number of the C70 device to lock to the settings file in the Serial # Lock field.
The settings file and corresponding secure FlexLogic™ equations are now locked to the C70 device specified by the serial
number.
A traceability feature for settings files allows the user to quickly determine if the settings in a C70 device have been
changed since the time of installation from a settings file. When a settings file is transfered to a C70 device, the date, time,
and serial number of the C70 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 C70 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 C70
device or obtained from the C70 device. Any partial settings transfers by way of drag and drop do not add the traceability
information to the settings file.
8
The serial number of the UR-series device and the file transfer
date are added to the settings file when settings files
are transferred to the device.
Compare transfer dates in the settings file and the
UR-series device to determine if security
has been compromised.
With respect to the above diagram, the traceability feature is used as follows.
8-12
Figure 8–10: TYPICAL SETTINGS FILE PROPERTIES WINDOW
1
2
Figure 8–11: SETTINGS FILE TRACEABILITY MECHANISM
C70 Capacitor Bank Protection and Control System
8.2.3 SETTINGS FILE TRACEABILITY
SETTINGS FILE TRANSFERRED
TO UR-SERIES DEVICE
The serial number and last setting change date
are stored in the UR-series device.
SERIAL NUMBER AND TRANSFER DATE
SENT BACK TO ENERVISTA AND
ADDED TO SETTINGS FILE.
8 SECURITY
842864A1.CDR
GE Multilin
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