TM 5-3895-374-10USERINTERACTIVEDISPLAYS....................................................................................................................................................................... INTRODUCTIONThe Main Operating Screen continuously displays the measured and calculated operation values for the system. As suchthe computer requires no input from the user and can be thought of merely as a set of system meters useful in monitoringplant performance. At other times it is necessary for the operator to directly control the system through the computer. Theoperator ’communicates’ with the computer through numerical data entered at the keypad. Data such as aggregatemoistures, the desired target production rate, the density of the liquid asphalt cement, calibration numbers, etc., etc., canbe entered in this manner. The computer uses a system of interactive displays to simplify this process.In this computer the first interactive display is the OPTIONS menu which can be turned on and off from the Main OperatingScreen by alternately hitting the ESCape key. This OPTIONS subscreen is called a menu because it presents thee userwith a series of tasks from which the user can make a selection. The menu shows the available tasks and the keystroke orkeystrokes that will direct the computer to proceed with the selected task. Note that the first option in all interactivedisplays is to ESCape from the selected task to the immediately previous screen. This option is always offered before anydata can be entered or changed so that the new operator should not fear investigating the various displays available.When a task selection is made the computer will respond with new list of continuation options and will display allinformation necessary to the selected task.The interactive display process is a communication scheme where the user is prompted on the display as to what optionsare available; a selection is made and a new list of options displayed; another selection is made and a new set of directionsdisplayed; etc., etc. As the operator selects from the displayed options he ’moves forward’ through the prompted directionsto accomplish the desired task. To ’move backward’ through the list, one step at a time, the user selects the ESCapeoption. Hitting the ESCape key often enough will always return the operator to the Main Operating Screen.Because all communication with the computer is through the keypad, the user should carefully read the section of thismanual on DATA ENTRY. The combination of common sense, interactive display, and friendly keyboard make data entryas obvious and as foolproof as possible but the operator should always remember that WYSIWYG - what you see is whatyou get.page F - 22SYSTEMS Equipment Corp8/31/89Page (13)
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