NT21_Reference Manual (V069-E1-1) (986756), страница 13
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The following 8 background colors can be set.Black, blue, red, magenta, green, cyan, yellow, whiteScreen CommentA comment indicating the contents of the screen can be set as any requiredcharacter string of up to 24 characters.HistoryWhen a screen for which this attribute is set is displayed, the screen number,display time, number of times displayed, and history title of the displayed screenare recorded as display history data.SettingFunctionCheckedWhen the screen is displayed, its data is recorded in the display history.NotcheckedWhen the screen is displayed, its data is not recorded in the displayhistory. (Default)Reference: The display history can be checked in the Maintenance mode of the PT, and canalso be read during operation by displaying screen number 9001 (occurrence order) or screen number 9002 (frequency order). It is also possible to transmit thedisplay history record data to the personal computer by operation at the SupportTool. For details, refer to the NT-series Support Tool Version 4 for Windows Operation Manual (V061-E1-j).History TitleThis attribute sets a character string to be recorded in the display history alongwith the display time and other information when a screen for which the historyattribute is set is displayed.The history title can be set as any required character string of up to 24 characters.This setting is only valid for screens for which the history attribute is set.
When ascreen for which the history title attribute is set is displayed by the PT, the designated character string is recorded together with the screen number in the displayhistory.Load Local1, Load Local2Specify whether or not a window (Local1, Local2) pops up at the same time thescreen is displayed by screen switching. Set the window screen number to bedisplayed when you check these attribute.For details of a window, refer to 2-15 Window Function (page 237), and for details of using method of a window, refer to 3-4 Display and Control of Windows(page 309)46SectionPT ScreensReference:2-1S A window can also be opened, closed or moved by the operation at Windowcontrol area.
(Refer to page 312.)S To control (open close or move) a window, follow the methods below.• Register an Input key-Window/Keyboard touch switch or a Window Movetouch switch on a screen. (Refer to pages 310, 311.)• Register a Cursor Move touch switch that has a window open function.(Refer to page 310.)• Operate Window control area from the host. (Refer to page 312.)• Switch to the screen that has a Load Local1 (keyboard) or Load Local2screen attribute.
(Refer to page 313.)Restrictions Relating toScreen AttributesThe functions of the backlight and buzzer attributes can also be performed usingthe PT status control bits. (And the buzzer can also be operated with a touchswitch.) When a screen for which one of these attributes is set is displayed, theset function is executed regardless of the status of the PT status control bits, butthe status of the backlight or buzzer can be changed later by using another operation.Depending on the screen attribute settings and the PT status control bit statuses, the PT status control bit statuses may not match the actual operation (ex.the buzzer bit in the PT status control bits may indicate that the buzzer is stoppedalthough the buzzer is actually sounding). In such a case, carry out PT statuscontrol bit operations to make the statuses agree with the actual status of the PT.For details on the PT status control bits, refer to 2-2-1 PT Status Control Area(page 52).2-1-5 Display ColorsWhen a screen is created with the Support Tool, the color of each element displayed on the PT screen can be set in the element’s attributes.Available ColorsThe monochrome PTs (NT21, NT31, and NT631) can display elements in blackor white.
(The NT631 has an EL display so lit elements will actually appearorange, but the color is still referred to as white.)The color PTs (NT31C and NT631C) can display the following eight colors.Black, blue, red, magenta, green, cyan, yellow, whiteWhen an element’s color is the same as the background color (making it invisible), the PT changes the color of the element to its opposite color to make it visible.
The opposite color combinations (XOR relationships) are as follows:Black ⇔ White, Blue ⇔ Yellow, Red ⇔ Cyan, Magenta ⇔ GreenThe following kinds of display elements are displayed in the above combinationsof colors.• Frame of input fields for numeral/character string input, and screen background color (page 192, 210).• Display color of eight dots beyond the top of a bar graph, and screen background color (page 157).Reference: XOR is the abbreviation of eXclusive OR. Color combinations that are oppositesin terms of the three primary colors — red, green, and blue — are said to be in anXOR relationship.Example: Blue (red 0, blue 1, green 0) ⇔ Yellow (red 1, blue 0, green 1)47SectionPT Screens2-1Color Correspondence Between Color and Monochrome PTsThe only colors that a monochrome PT can display are white and black.The screen data for a color PT can be displayed on a monochrome PT withoutalteration and in this case the color correspondences are as follows:Color on a color PTColor on an NT 21 orNT31Color on an NT631Black, blue, red, or magentaWhiteBlackGreen, cyan, yellow, or whiteBlackWhite (EL lit color)Likewise, the screen data for a monochrome PT can be displayed on a color PTwithout alteration and in this case the color correspondences are as follows:Color on an NT 21 orNT31Color on an NT631Color on a color PTWhiteBlackBlackBlackWhite (EL lit color)WhiteReference: When screen data is created for an NT21 or NT31, black and white are displayedas white and black respectively at the Support Tool.Transparent DisplayWhen elements are displayed on top of others, normally the background color ofthe element on top conceals the element below so that it cannot be seen.Besides the above eight colors, the color transparent is available for the background of some display elements.When transparent is set, nothing appears behind a display element, and the display element or screen background color underneath it is visible.<Normal display><Transparent display>Graphic under characterACharacterBackgroundcolorGraphic under characterACharacterBackground color(transparent)Possible Applications of the Transparent Color Designation• Background color of normal display text• Background of labels for lamps and touch switches (fixed as transparent)• Display color of lamps and touch switches when they are off• Background color of tiling patterns for graphics• Background color of marksImpossible Applications of the Color Transparent Designation• Background of character strings displayed from the character string memorytable• Background of numeric values displayed from the numeral memory table• Background of numeric values and character strings in numeral setting inputfields and character string input fields• Background of characters indicating percentages (%) on graphs• Display color of lamps and touch switches when lit• Background color of temporary input fields• Display color of alarm list/history48SectionPT Screens2-1Screen BackgroundColorThe background color of the entire screen can be designated with the Background screen attribute.
Screen attributes are properties set for each screenwith the Support Tool.Text Display ColorThe color of characters (character color) and that of their rectangular frames(background color) can be specified.AGraphics Display ColorBackground colorCharacter colorThe colors of lines and tiling patterns can be specified for graphics.The colors that can be designated for tiling patterns are the color of the patternitself, the background color of the pattern, and the color of the outline of the tiledarea.Outline color (Border)Pattern displaycolor (Foreground)TilingPattern backgroundcolor (Background)Line colorReference: When a lamp, a touch switch, and a graphic are displayed in color, part of theframes of the display elements may be invisible because of the combination ofthe background, outline, and tiling colors.
This is a phenomenon peculiar to a color LCD, not a failure of the system. In such a case, change the color combination.2-1-6 Display ElementsThe PT can display the following elements.MarkText95/04/10 14:10LINE B PRODUCTIONSTATUSImage dataEMERGENCYSTOPGraphicTouch switchLampOUTPUT TARGETCharacter stringsPRODUCTCNumeric keysPRODUCTDNumeral displayNumeralinputGraph49SectionPT ScreensElementFixeddisplayLampsDescription2-1For Details,Refer toArcsPossible display modes: standard/flash/inverse/inverse flash. Otherdisplay modes are not available.Page 90CirclesPossible display modes: standard/flash/inverse/inverse flash.
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