NT21_Reference Manual (V069-E1-1) (986756), страница 35
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In this case, the graph won’t be refreshed even if the values displayedon the graph are changed.Resulting DisplayWhen No Check Mark Is Set for Display SignPosition(Top left corner of the rectangular areaincluding the graph and percentage display)Frame colorPercentage display60%Size(Y direction)Display color for the + rangeSize (X direction)0% position100% positionWhen a Check Mark Is Set for Display SignIn this case, the center of the graph is always the 0% position, regardless of thesettings made for 100%, 0%, and –100%.Size(Y direction)Position(Top left corner of the rectangular areaincluding the graph and percentage display)Percentage displayFramecolor–60%Display color for the – rangeSize (X direction)–100% position1560% position100% positionSection 2-10GraphsIncremental Direction of Bar GraphsThe incremental directions of the bar graph depending on the setting made forDirection are shown below (applies only when no check mark is set for DisplaySign).Up:The bar graph increments upward.↑Down:The bar graph increments downward.↓ DirectionDirectionLeft:The bar graph increments to the left.Right:The bar graph increments to the right.→Direction←DirectionMethod for Calculating the Percentage ValueThe percentage value is calculated as follows, depending on whether it is largeror smaller than the 0% value.• When displayed numeric value y 0%, and when no check mark is set forDisplay Sign:Percentage value =Displayed numeric value – [0%][100%] – [0%]100• When displayed numeric value < 0%:Percentage value =Displayed numeric value – [0%][0%] – [–100%]100Method for Displaying the Percentage ValueThe percentage value will be displayed as a signed value regardless of the bargraph’s Display Sign setting.
The percentage value is always displayed as 5-digit value: the sign character, 3-digit numerical value, and % character. (The signcharacter is a blank space for positive values.)Differences in the Bar Graph Display Method According to the PercentageValueThe bar graph display method varies according to the percentage value range.1, 2, 3...1. When the percentage value is in the minus rangeThe display varies as follows according to the Display Sign setting.• No check mark: The bar graph is displayed as 0% (Display % is shown innegative value.)• Check mark:Displayed in the minus range2.
When the absolute value of the percentage value is in the range of 100% to999%The percentage value is displayed as it is. The bar graph is displayed as follows according to the Display Sign setting.• No check mark:Display depends on the setting for Frame:157Section 2-10GraphsWhen a Frame Is SetPercentage display999%↑0% position↑100% positionGraph width: 8 dotsWhen No Frame Is SetPercentage display1-dot-wide space999%↑0% position↑100% position Graph width: 8 dots• Check mark:The display follows the same pattern as when no check mark is set in thenegative range of the graph.3. When the absolute value of the percentage value is greater than 1000%The graph is displayed in the same way as described in (2) above.The percentage value is displayed as follows according to the setting forDisplay Sign:• No check mark: ***%• Check mark:****%Display FunctionsBar graphs indicate numeric values in accordance with the General settings.For details on the method of display depending on the General settings, refer toCommon Attributes (page 155).Input FunctionsBar graphs have no input function.Output FunctionsBar graphs have no output function.Processing FunctionsBar graphs calculate the percentage value in accordance with the settings madefor Settings.For details on the calculation method depending on the Settings settings, refer toCommon Attributes (page 155).Relationship with Other Elements• For details on how numeric values are stored in numeral memory table entries,refer to 2-3 Numeral Memory Table (page 72).• Bar graphs overlap with other elements in accordance with the order in whichthey were registered for the screen with the Support Tool.
However, the way inwhich they overlap can be changed with the Support Tool.2-10-2 Analog MeterFunction OutlineThe contents of a numeral memory table entry or host words are displayed in theform of a circle-shaped analog meter. The numeric value can also be indicatedas a percentage of the designated numeric value.
Also, scale display is possible.60%Restrictions158• The analog meter is available only in NT31/NT31C and NT631/NT631C PTswith the -EVj suffix on the system program’s version number. The analog meter can be used with all versions of the NT21.Section 2-10Graphs• A maximum of 50 analog meters can be registered for one screen. (same forwindow screen) For an overlapping screen comprising 8 child screens, themaximum is 400.There is no restriction on the number of analog meters that can be registeredfor one screen data file: any number can be registered as long as the data filecapacity is not exceeded.
However, if a large number of elements are registered, check that the restrictions on element display are complied with by referring to Display Restrictions (Page 437)Common AttributesThe relationship between the properties of an analog meter and the display results is indicated below.PropertyGeneralPositionCoordinates of the top left corner of the analog meter area.Coordinate of the center position of the meter part of ananalog meter.SizeRadiusStyleNT21NT31/NT31CNT631/NT631CFull circle 10 to 7010 to 12010 to 2401/2 circle 10 to 13010 to 16010 to 3201/4 circle 10 to 13910 to 22610 to 452The upper limit of the radius may be lower depending uponthe Scale Display settings.FrameWhether or not a frame is displayed for the graph area.Check mark (frame displayed)/No check mark (frame not displayed)Display color of the frame (Colors other than black and whiteare available with the NT31C and NT631C only.)Black/Blue/Red/Magenta/Green/Cyan/Yellow/WhiteDisplay SignWhether or not a negative area is displayed.Check mark (displayed)/ No check mark (not displayed)DirectionDirection in which the value extends ( Incremental direction ofanalog meters, page 162)Clock-wise/Anti-ClockwiseShapeQuarter/Semi-Circle/CircleDirectionDirection in which the analog meter extends from 0% position↑/↓/←/→TypeDisplay method of the area between present value and 0%value.Needle/FillWidth RateMeter width10% to 100% (regarding the radius as 100%)Scale DisplayScaleWhether or not a scale is displayedCheck mark (scale displayed)/No check mark (scale not displayed)DistancePosition of the scale0% to 150% (regarding the radius as 100%)100%=On circumference of the meter partScaleLengthScale length10% to 110% (regarding the radius as 100%)100%=Same length as the radius of the meter partNo.
ofDivisionNumber of the divisions in which the scale should be divided1 to 20Scale ColorScale color (Colors other than black and white are availablewith the NT31C and NT631C only.)Black/Blue/Red/Magenta/Green/Cyan/Yellow/White159Section 2-10GraphsGeneralMeter ColorForegroundForeground color for the present value (needle or fill) of themeter part (Colors other than black and white are availablewith the NT31C and NT631C only.)Black/Blue/Red Magenta/Green/Cyan/Yellow/WhiteBackground Background color of the analog meter (Colors other than blackand white are available with the NT31C and NT631C only.)Black/Blue/Red/Magenta/Green/Cyan/Yellow/White+RangeDisplay color for the positive range (Colors other than blackand white are available with the NT31C and NT631C only.)Black/Blue/Red/Magenta/Green/Cyan/Yellow/White–RangeDisplay color for the negative range (Colors other than blackand white are available with the NT31C and NT631C only.)(effective only when a check mark is set for Display Sign)Black/Blue/Red/Magenta/Green/Cyan/Yellow/WhiteSettingsValueTable EntryDisplay %Number of numeral memory table entry whose contents are tobe displayed.Presence/absence of a percentage indication of the contentsof the numeral memory table entry (Method for calculating thepercentage value, page 162)Check mark (percentage displayed)/No check mark (no percentage displayed)For details on the Display % properties, refer to the NumeralDisplay’s General Properties on page 141.100% *1 (Specify 100% value using either of Table Entry or Value.)Table EntryNumeral memory table entry number check to find the 100%value for percentage calculationDesignate the number of the numeral memory table entry thatstores the 100% value.Range: 0 to 1999ValueCheck to find the 100% value for percentage calculationDesignate the 100% value (default: 100)Range: –2147483648 to 21474836470% *1 (Specify 0% value using either of Table Entry or Value.)Table EntryNumeral memory table entry number check to find the 0%value for percentage calculationDesignate the number of the numeral memory table entry thatstores the 0% value.Range: 0 to 1999ValueCheck to find the 0% value for percentage calculationDesignate the 0% value (default: 0)Range: –2147483648 to 2147483647–100% *1 (Specify –100% value using either of Table Entry or Value.)Table EntryNumeral memory table entry number check to find the –100%value for percentage calculationDesignate the number of the numeral memory table entry thatstores the –100% value.Range: 0 to 1999ValueCheck to find the –100% value for percentage calculationDesignate the –100% value (default: –100)Range: –2147483648 to 2147483647*1: The –100% value, 0% value, and 100% value must comply with the followingrelationship:–100% value < 0% value < 100% valueWhen a table entry is specified for the % value, the relationship above will not be160Section 2-10Graphssatisfied if the contents of the specified numeral memory table entry areincorrect.
In this case, the graph won’t be refreshed even if the values displayedon the graph are changed.Even if the specified value was in an allowable range, it is discarded when ananalog meter sticks out of the screen with the specified value.Reference:S If the –100% value < 0% value < 100% value relationship is not satisfied, theanalog meter itself will not be displayed even if you switch to the screen containing the meter.S The graph’s % values are always displayed with the standard display attributes.
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