NT21_Reference Manual (V069-E1-1) (986756), страница 14
Текст из файла (страница 14)
Otherdisplay modes are not available.Page 90RectanglesPossible display modes: standard/flash/inverse/inverse flash. Otherdisplay modes are not available.Page 90PolygonsPossible display modes: standard/flash/inverse/inverse flash. Otherdisplay modes are not available.Page 90PolylinesPossible display modes: standard/flash. Other display modes are notavailable.Page 90SectorsPossible display modes: standard/flash/inverse/inverse flash.
Otherdisplay modes are not available.Page 90TextCharacter strings. Possible display modes: standard/flash/inverseflash. Other display modes are not available.Page 97TilingThe inside of an enclosed area is filled with a tiling pattern.Page 101Image dataGraphics of any required size, composed of dots. The display modecannot be changed.Page 106Library dataThese are groups of elements used as a single element. Fixed displaygraphics can be registered as library data.Page 109MarksThese are graphics composed of 16 by 16 dots that are treated ascharacters.Page 103Normal (Standard)lampsThese are graphics that light (flash) and go off depending on the status of a bit at the host.
The following shapes can be selected for normal (standard) lamps: rectangles, polygons, circles, fans.Page 112Image/library lamps These are elements that display different image/library data depending on the status of a bit at the host.Page 112Touch switchesThese are elements that can be used as switches: they allow theexecution of various functions, such as notification to the host, to beexecuted by pressing the touch panel of the PT. They also have thesame display functions as normal (standard) lamps.
They can be displayed in any of the following forms: standard, shadow, 3-dimension,rectangle, circle, polygon, sector — (standard without frame can bedisplayed also.).Page 119Numeral displayThe contents of a numeral memory table entry in the internal memoryof the PT is displayed. The display changes in accordance with changes in the data contents.Page 140Character string displayThe contents of a character string memory table entry in the internalmemory of the PT is displayed.
The display changes in accordancewith changes in the data contents.Page 148GraphsBar graphsThe data contents of a numeral memory table entry in the internalmemory of the PT is displayed in bar graph form.Page 154Analogue meterThe data contents of a numeral memory table entry in the internalmemory of the PT is displayed in the form of a quarter, semi-circle orcircle-shaped graph.Page 158Broken line graphsThe data contents of multiple numeral memory table entries in theinternal memory of the PT are displayed in the form of a broken linegraph.Page 164Trend graphsThe data contents of multiple numeral memory table entries in theinternal memory of the PT are displayed in the form of a trend graph.Page 17050SectionPT ScreensAlarmsFor Details,Refer toElementDescriptionAlarm listThis element monitors the status of host bits designated in advance,and displays the message corresponding to the bit that comes ON.
Bypressing the displayed message, the corresponding image/library datacan be displayed and the screen can be switched.Page 182Alarm history@ Occurrence orderThis element monitors the status of host bits designated in advance,and displays the contents of the alarm history record (occurrenceorder), which records the time when the bits come ON, together withthe messages corresponding to each bit. As with the alarm list, it ispossible to display the messages or image/library data corresponding to each bit.@ Frequency orderThis element monitors the status of host bits designated in advance,and displays the contents of the alarm history record (frequencyorder), which records the number of times each bit has come ON,together with the messages corresponding to each bit.
As withalarm list, it is possible to display the messages or image librarydata corresponding to each bit.Page 182This is an element for inputting numeric values to a numeral memorytable entry by using touch switches as numeric keys.Page 192Character stringinputThis is an element for inputting character strings to a character stringmemory table entry by using touch switches as input key – string.Page 210ThumbwheelswitchThis is an element for inputting numeric values to a numeral memorytable entry by using + and – touch switches for each digit.Page 200Tabular elements that can be used to write several words of numericvalue data set at the PT, or can be used to read several words of datafrom the host. It also allows numerical value data to be edited from thetouch panel.Page 216InputNumeral inputSettingsRecipe2-151SectionAreas for Control/Notification2-22-2Areas for Control/NotificationThe following areas are provided for PT control and PT status notification between the PT and the host.• PT status control areaThis area is used to designate the screen to be displayed at the PT, to copydata contents between memory table entries in the PT, and to control the statusof the backlight and other statuses.• PT status notify areaThis area is used to notify the memory table entry number to the host whenthere is a change in the data contents of a memory table entry in the PT, and tonotify information such as changes in the PT status.• Window control areaThis area is used to designate the window screen number or display positionfrom the host, and to notify these information from PT.• Clock data area (NT21)This area is used to read clock data from the host for use by the PT.
The NT21does not have a built-in clock, so data is periodically read to this area.Reference:S Words must be allocated in the host for the PT status control area and PT status notify area. Screen data cannot be downloaded from the Support Tool unless they have been allocated.S The PT status control area, PT status notify area, window control area, andclock data area (NT21 only) must be set so that they do not overlap.S When multiple PTs are connected to one PC, the PT status control area, PTstatus notify area and window control area of each PT must be set so that theydo not overlap, or the movement of PT will be unstable.S Allocate words for a window control area in the host only when the window isused and when the window is controlled from the host. Even if words are notallocated for the window control area in the host, a window can be controlled bytouch switch operation.S Words must be allocated in the host for the clock data area only when clockdata is required on the NT21 (e.g., to display the time or date or to use thescreen display or alarm history).
Allocation is not required if clock data is notbeing used on the NT21.2-2-1 PT Status Control Area (Host ↔ PT)When data is written to this area from the host, the PT reads the data and operates accordingly. However, note that the number of the currently displayedscreen is written to the screen switch setting word from the PT too.The PT status control area is configured as five consecutive words as shownbelow.
The first word (word n) is set in the Control/Notify Area settings in the PTconfiguration settings made with the Support Tool.15 14 13 12 11 10 9876543210BitWord52nScreen No. (4-digit BCD or hexadecimal)n+1Copy source memory table entrynumber (4-digit BCD or hexadecimal)n+2Copy destination memory table entrynumber (4-digit BCD or hexadecimal)n+3PT status control bitsn+4Reserved for system useScreen switch settingCopy memory tablesettingPT status controlSectionAreas for Control/Notification2-2Reference: The configuration and functions of the PT status control area are different whenthe PT is set to NT20S or NT30/620 compatible mode. Refer to Appendix C fordetails on the NT20S and NT30/620 compatible modes.Words Allocated for thePT Status Control AreaSymbolC-series PCsWords can be allocated for the PT status control area (host ↔ PT) in the following host (PC) areas.AllocationCV-series PCsAllocationCS/CJ-series PCsAllocationNoneIR AreaOKCIO AreaOKCIO AreaOKHHR AreaOK------HR AreaNot forHost LinkAAR AreaOKAuxiliary AreaNoAR AreaOKLLR AreaOK------LR Area*1Not forHost LinkTTC Area,Timer PVsNoTimer Area,Timer PVsNoTC Area,Timer PVsNoTU------------TC area,Timer Completion FlagsNoCTC Area,Counter PVsNoCounter Area,Counter PVsNoTC Area,Counter PVsNoCU------------TC Area,Counter Completion FlagsNoW------------WR AreaTK------------Task FlagsNoDDM AreaOKDM AreaOKDM AreaOKEEM Area *2,current bankOKEM Area,current bankE0_ toEC_---------Not forHost Link---Not forHost LinkEM Area,current bankNot forHost LinkEM Area,EM banks 0 to CNot forHost Link*1: LR 00000 to LR 00199 are converted to CIO 01000 to CIO 01199.*2: The EM Area is supported only by the C200HX/HG/HE(-Z)E PCs.The Auxiliary Area of the CVM1 and CV-series PCs is allocated to system functions, and cannot be used for purposes other than system use.The range of each memory area differs according to the PC.
Refer to Appendix DPC Memory Maps on page 441.Functions of the PT Status Control AreaScreen Switch SettingData is written to the screen switch setting word from both the PT and the host.The meaning of the data differs according to whether it is written from the PT orthe host. However, if the PT is currently operating, the number of the screen displayed is always written to the screen switch setting word.Reference: When the PT is set to NT20S or NT30/620 compatible mode, data can be writtenfrom the host only. In this case, the screen switch setting notification from the PToccurs in the first word (word m) of the PT status notify area. Refer to Appendix Cfor details on the NT20S and NT30/620 compatible modes.When Data Is Written from the HostTo switch the screen displayed at the PT by an instruction from the host, write thescreen number, as a 4-digit BCD or hexadecimal value, to the screen switch setting word.
![](https://s.studizba.com/z.php?f=/templates/si/i/noavatar.png&w=100&h=100&t=1"){kind=avatar}
