4-12 N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUALFRONT PANEL INTERFACE CHAPTER 4: INTERFACES4Figure 4-14: Traceability data in Actual Values windowThis information is also available from the front panel display through the following actual values:ACTUAL VALUES PRODUCT INFO MODEL INFORMATION SERIAL NUMBERACTUAL VALUES PRODUCT INFO MODEL INFORMATION LAST SETTING CHANGE4.1.8.3 Additional traceability rulesThe following additional rules apply for the traceability feature:• If the user changes any settings within the settings file in the offline window, then the traceability information isremoved from the settings file• If the user creates a new settings file, then no traceability information is included in the settings file• If the user converts an existing settings file to another revision, then any existing traceability information is removedfrom the settings file• If the user duplicates an existing settings file, then any traceability information is transferred to the duplicate settingsfile4.2 Front panel interfaceThis section explains use of the front panel.4.2.1 Front panel displayMessages display on a backlit liquid crystal display (LCD) to make them visible under poor lighting conditions. When thekeypad and display are not actively being used, the display defaults to user-defined messages. Any high-priority event-driven message overrides the default messages and displays.Settings files conversion from previous firmware versions is supported.4.2.2 Front panel keypadDisplay messages are organized into pages under the following headings: actual values, settings, commands, and targets.The MENU key navigates through these pages. Each heading page is divided further into further submenus.The MESSAGE keys navigate through the submenus. The VALUE keys increment or decrement numerical setting values whenin programming mode. These keys also scroll through alphanumeric values in the text edit mode. Alternatively, values canbe entered with the numeric keypad.The decimal key initiates and advances to the next character in text edit mode or enters a decimal point.The HELP key can be pressed at any time for context-sensitive help messages.The ENTER key stores setting values.When entering an IP address on the front panel, key in the first sequence of the number, then press the • key for thedecimal place. For example, for 127.0.0.1, press 127, then •, then 0, then •, then 0, then •, then 1. To save the address, pressthe ENTER key.The figure shows the sequence to use to enter a setting. Subsequent sections provide more detail.Traceability data in onlinedevice actual values page842865A1.CDR