11-6 L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUALBACK UP AND RESTORE SETTINGS CHAPTER 11: MAINTENANCE11for the file.In the figure, the first entry (red) is from the device, while the second (green) is the default value.Figure 11-5: Device settings compared with default values11.5.2 Compare two devicesPreferences can be set under File > Preferences as follows:• Comparison Report: Sequential File 1, File 2 Layout — When disabled (default), the report shows only what differs, asshown in the previous figure. When enabled, the report indicates differences by device.Figure 11-6: Device settings compared between two devices, displayed sequentiallyThere are two ways to compare devices: devices in the Offline area or between Online and Offline devices.To compare settings of two devices in the Offline Window area:1. Right-click a first device in the Offline Window area and select Compare Two Devices.2. In the window that opens, select a second device and click the Receive button. The file generates and the number ofdifferences displays.3. To save the report, click File > Save As, select the TXT, PDF, or CSV format from the drop-down list, and enter a namefor the file.To compare settings between Online and Offline devices:1. Right-click a device in the Online Window area and select Compare with Device.2. In the window that opens, enter a path/file name at the bottom o f the window.3. Select the second device.4. Click the OK button. The file generates, and the differences are highlighted in red, which is for the first device.11.6 Back up and restore settingsBack up a copy of the in-service settings for each commissioned UR device, so as to revert to the commissioned settingsafter inadvertent, unauthorized, or temporary setting changes are made, after the settings defaulted due to firmwareupgrade, or when the device has to be replaced. This section describes how to backup settings to a file and how to usethat file to restore the settings to the original relay or to a replacement relay.
