NT21_Reference Manual (V069-E1-1) (986756), страница 5
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(They arenot accessible through host link communications.)For differences in programming, refer to Appendix B Compatibility with ScreenData of Other PT Models on page 441.11SectionFunctions of the NT21, NT31/NT31C and NT631/NT631C1-2Differences between the NT620S/NT620C/NT625C and NT631/NT631CItemNT620S/NT620C/NT625CNT631/NT631CCompatible Support Tool(s)NT-ZJCAT1-EV4 orNT-ZA3AT-EV2NT-ZJCAT1-EV4DIP switch settingsOn rear of unitNone (software settings)Use of Memory UnitNot possiblePossibleRS-232C interfaceConnector (9-pin) also used as port forscreen data transfer.- Serial port A connector (also usedfor screen data transfer, 9-pin)- Serial port B connector (for hostcommunications only, 25-pin)RS-422A/485 interfaceNT620S/NT620C: NoneNT625C: Terminal block (SelectRS-232C or RS-422A/485 with the DIPswitch.)Terminal block (A memory switch canset the RS-232C connector as serialport B.)Replacement backlightNT620C-CFL01 (NT620C)NT610C-CFL02 (NT625C)NT631C-CFL01 (for ST151)NT631C-CFL02 (for ST141)NT631/NT631C system programdataNT620-ZS3PC/ZS3DV-EV1(including system installer)The system installer and systemprogram data are supplied with theSupport Tool.High-speed 1:N NT LinkNot possiblePossible*1MemoryyLi kLinkSystem programExclusive use by Memory LinkSame as OMRON connectionScreen dataShared with OMRON connectionExclusive use by Memory LinkLCD contrast adjustmentBy a control on the rear of the unitAdjustable with touch panel operation.(NT631-ST141j-V2 only)Backlight brightness adjustmentNot possibleAdjustable with touch panel operation.(NT631-ST141j-V2 only)Number of user-registered screens2,000 max.3,999 max.NT620S: 512 KBNT620C/NT625C: 1 MB1 MB(User program memory)Numeral string data1,000 max.2,000 max.Character string data1,000 max.2,000 max.Bit data2561,000 max.Mathematical tableNone256 entries max.Calculations can be executedautomatically in the PT.*1Image data224 max.4,095 max.*3Library data896 max.12,288 max.*3Method for storing numeric values(numeral memory data and PTstatus control area)Fixed as BCD (binary coded decimal)Selectable from BCD (binary codeddecimal) or binaryPT status control area size4 words5 words (partial change of contents)*3PT status notify area size3 words2 words (partial change of contents)*3Window control area sizeNone9 words*4Registering continuous screenPossibleNot possible (Use a screen switchoveras a substitute.)Lamp/Touch switch guidecharactersFixed display (1 line only)-Interlock functionNoneOperations can be disabled from thePC by allocating interlock bits to thecorresponding touch switch, numeralinput, or character string input.*1Device monitor functionNot possiblePossible*1Screen data12capacity*2Multiple lines can be displayed*1ON/OFF switching is possible*1Numeral display is possible*1Character string display is possible*1SectionFunctions of the NT21, NT31/NT31C and NT631/NT631CItemNT620S/NT620C/NT625C1-2NT631/NT631CRecipe functionNonePossible*1Accessible CS/CJ-series PC dataareas---The data areas listed below can beaccessed in addition to the data areasaccessible with the NT30/NT30C.*5- EM banks (EM_0 to EM_C)- Timer completion flags (TU)- Counter completion flags (CU)- Work Area (WR)- Task flags (TK)- HR Area*1: These functions are available only in V2 versions of the NT631/NT631C.*2: This is the capacity of the flash memory that stores screen data.*3: The values are the same as the NT620S/620C/NT625C when the PT is in NT30/620 compatible mode.*4: The window control area can be used only in version V1 or later of the NT631/NT631C.*5: These data areas are accessible only when the PT is connected to the CS/CJ-series PC in a 1:N NT Link.
(They arenot accessible through host link communications.)For differences in programming, refer to Appendix B Compatibility with ScreenData of Other PT Models on page 441.13SectionFunctions of the NT21, NT31/NT31C and NT631/NT631C1-21-2-5 Principal Functions of NT21, NT31/NT31C, and NT631/NT631CThe following are the principal functions of the NT21, NT31/NT31C, andNT631/NT631C.Functions relating to data displayCharacter displayCharacters of various sizes can be displayed. Characters can be flashed and displayed in reversevideo. High grade fonts are available for the characters with their size enlarged.Graphic displayPolylines, rectangles, polygons, circles, circular arcs, and sector shapes can be displayed. They canalso be tiled with various patterns, flashed, or displayed in reverse video.Memory data displayThe contents of character string memory table entries and numeral memory table entries can be displayed.
The contents of memory table entries can be changed from the host.Graph displayNot only bar graphs but also broken line graphs, trend graphs, and analogue meter graphs can bedisplayed using numeral memory table entries.Lamp displayLamps can be turned on and flashed under the control of the host. It is also possible to display differentgraphics in the ON and OFF states.Alarm list/history displayWarning messages are automatically displayed in a list in response to the state of a host bit. The timeand the number of times of the messages appeared can also be displayed.NT31/NT31CNT631/NT631CFunctions relating to data outputBuzzerA built-in buzzer can be sounded.Screen printing (NT31/NT31C and NT631/NT631C)A hard copy of the currently displayed screen can be printed at theprinter connected to the PT.14NT21Functions of the NT21, NT31/NT31C and NT631/NT631CSection1-2Functions relating to data inputInput by touch switchesData can be input by simply touching touch switches displayed on the screen.The possible functions of touch switches include sending data to the host and changing the screen display.Inputs can be enabled and disabled from the host when interlock bits have been allocated.Pop-up window functionA window overlaying the currently displayed screen can be alternately opened and closed by pressing a touch switch.In addition to fixed character and graphic displays, control keys and character keys created as touch switches can also be setinside the window.
A maximum of three windows can be displayed simultaneously. Since the window need only be opened wheninput is required, the screen can be used efficiently.Numeral/character string setting functionNumeric keys and character keys can be assigned to touch switches so that numeric values and character strings can be input atthe operation site.The input data is written to numeral/character string memory table entries and also sent to the host.
It is also possible to disableinput by control from the host.Recipe functionSeveral words of numeric data can be edited at the PT Unit, and written to or read from the host in one operation.Input from a bar code readerData read with a bar code reader can be input to a character string input field.Functions relating to communicationsCommunications with the hostThe PT can communicate with the host by four methods: host link, 1:1 NT Link, 1:N NT Link(standard and high-speed) and Memory link. Data can be read from the host, and data input bymeans of touch switches and numeral/character string settings can be sent to the host.
It is alsopossible to connect the NT31/NT31C and NT631/NT631C with PCs from other companies.Functions relating to the systemSystem menuSystem settings and maintenance can be performed by selecting from system menus displayed on the screen.Creation of screen dataScreen data created using the Support Tool at a personal computer can be transferred and stored in the built-in screen data memory.Resume functionThe status and memory table contents of the NT21, NT31/NT31C, and NT631/NT631C immediately before its operation is stopped can bestored while operation is stopped, or while the power is off, and then displayed on the screen again when operation is restarted. (Optional Battery required for NT21.)Screen saver functionThis function serves to extend the service life of the backlight and prevent the formation of an afterimage on the screen.Clock functionThe time can be displayed in accordance with the internal clock data.Programming Console functionThe PT can perform the same operations as a C200H-PR027-E Programming Console when the PT is connected to a CPM1, CPM2A, CPM2C,CQM1, CQM1H, C200HX/HG/HE(-Z)E, or SRM1 PC in a 1:1 NT Link connection, or a CS1, CS1-H, CJ1, or CJ1-H PC in a 1:N NT Link connection.Device Monitor function (NT31/NT31C and NT631/NT631C)When the PT is connected to a PC in a 1:1 NT Link or 1:N NT Link, the PT can be used for operations such as changing the PC’s operatingmode, displaying or changing the PVs of words, or reading the error log.System program install functionThe system program of the NT21, NT31/NT31C, or NT631/NT631C can be changed by using the system installer supplied with the Support Tool(NT-ZJCAT1-EV4).
It can also be installed by using a Memory Unit (NT-MF261).Screen display history function/alarm history functionThe screen display history function records the time at which specific screens are displayed and the number of times they are displayed. Thealarm history function records the time at which specific bits at the host are turned ON and the number of times they are turned ON.Trend graph logging function and background functionChanges in the contents of numeral memory table entries displayed in trend graphs can be recorded (logging function). Also, the record can bemaintained even when the trend graph is not displayed (background function).Mathematical functionThis function allows calculations to be executed regularly during PT operation when mathematical table entries have been set in screen data.Arithmetic operations, bit operations, logic operations, and comparison operations can be performed.
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