NT21_Reference Manual (V069-E1-1) (986756), страница 3
Текст из файла (страница 3)
This information will enable you to understand the applications of the PTs.1-11-21-31-41-51-6Role and Operation of the PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1-1 Operation of a PT at an FA Production Site . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .1-1-2 Operations of the PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Functions of the NT21, NT31/NT31C and NT631/NT631C . . . . . . . . . . . . . . . . . . . .
. . . .1-2-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2-2 Comparison between NT21, NT31, NT31C, NT631, and NT631C . . . . . . . . . . .1-2-3 Additional Functions of the V2 Versions ofthe NT31/NT31C and NT631/NT631C . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .1-2-4 Comparisons with Earlier Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2-5 Principal Functions of NT21, NT31/NT31C, and NT631/NT631C . . . . . . . . . . .1-2-6 Displays . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3-1 Peripheral Devices That Can Be Connected . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .1-3-2 Connecting to the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Communications with the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4-1 Direct Connection Function . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4-2 Host Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4-3 NT Link . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4-4 Functions of the Allocated Bits and Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4-5 Clock Data Area (PC to PT) (NT21 Only) . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .1-4-6 Connecting to other Companies’ PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Communication by Using Memory Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5-1 Memory Link .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5-2 Comparison between Direct Connection and Memory Link . . . . . . . . . . . . . . . . .1-5-3 Memory Link Online Transfer Function . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .Before Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2234467814162222242626272728333435353536371SectionRole and Operation of the PT1-11-1Role and Operation of the PTThe NT21, NT31, NT31C, NT631, and NT631C are sophisticated operator interfaces (Programmable Terminals) that automatically display information and canalso be used for operations when necessary.
The following gives a general description of the role and operation of the PT for those using a Programmable Terminal (PT) for the first time.1-1-1 Operation of a PT at an FA Production SiteProduction Line StatusMonitoringThe PT displays real-time information about the system and equipment operating status, etc. Its power of expression is enhanced by graphs and other visuals,making the displays easy to understand.Production Control (3)ProductToday’s targetCurrent productionNumber defectiveNumber repaired56030527441275815% achievedDirections to Workers onthe Shop FloorThe PT warns of system or equipment failures and prompts the appropriate remedial action.AlarmAssembly line BPositioning pinis defective.
Line stopped.Check the following.1. Defective pin L32. Position of dog M23. Mounting of photosensor P5Panel Switch FunctionsSetting touch switches on the PT allows workers to use the PT as an operatingpanel; the results of the operations are transmitted to the host.Electroplating controlTransportElectr.headWash.headCorr. prv.headElectrolyteWashCorr.prv.fluidClampUnclampAdv.Int. stopRev.2SectionRole and Operation of the PT1-11-1-2 Operations of the PTTransferring Screen DataThe screen data to be displayed on the PT can be created on a personal computer using the Support Tool.
Connect the PT to the personal computer with anRS-232C cable and transfer the screen data to the PT.Create screen data.RS-232CPersonalcomputer(Support Tool)Screen dataWhen the host is connected at serial port A,the personal computer is only connectedwhen communicating screen data betweenthe PT and Support Tool.Displays ScreensThe information to be displayed (screen data) can be created on a computer using the Support Tool and stored in the PT. The screen data can be displayed onthe PT in response to instructions from the host or touch switch operation.HostThe screen data designated byinstructions from the host or touchswitch operation is displayed.Receives Data from aHostThe PT can be connected to the host by a host link or NT Link and receive necessary data from the host.Host link, NT LinkSends Data to a HostHostData input using the touch panel (switch ON/OFF statuses, numeric values,character strings) can be transmitted to the host.HostTouch panelON/OFF information, numericdata, etc.3SectionFunctions of the NT21, NT31/NT31C and NT631/NT631C1-21-2Functions of the NT21, NT31/NT31C and NT631/NT631CThe NT21, NT31/NT31C and NT631/NT631C have the following features.1-2-1 FeaturesSlim Construction• The PT is slimmer but retains the same functions.
The depth is 50 mm max.when mounted in a panel with the recommended thickness (1.6 to 4.8 mm.)• The communication cable connectors are housed in the unit so that they do notprotrude from the unit.Ideal Construction for an FA Environment• NT21-ST121j-E:• NT31-ST121j-EV2:STN monochrome LCD with backlightSTN monochrome LCD with backlight• NT31C-ST141j-EV2: STN color LCD with backlight• NT631-ST211j-EV2:High-contrast EL display• NT631C-ST141j-EV2: STN color LCD with backlight• NT631C-ST151j-EV2: TFT color bright LCD with backlight• The backlight unit and battery can be replaced onsite.
(The backlight on theNT21 cannot be replaced.)• Waterproofing meets NEMA4 and IP65F standards. (The panel can not beused in some IP65F environments requiring long-term exposure to oil.)NT31/NT31CNT21260 dots140 dotsNT631/NT631C640 dots320 dots240 dots480 dotsWide angle of visibilityWide angle of visibilityPanel Contrast andBrightness AdjustmentCompatibility with Other PTsOn the NT31, NT31C, and NT631C, the contrast and brightness are adjustableby touch switch operations. (These features are not supported on NT631 models and NT631C-ST151j-EV2.) On the NT21, the contrast is adjustable byswitch operations on the back panel.• There is upward compatibility between the following models for screen dataand user programs: NT20S, NT30, NT30C, NT600S, NT21, NT31, NT31CNT610G, NT610C, NT620S, NT620C, NT625C, NT631, NT631C.
(After beingread to the Support Tool, screens must be modified in accordance with thescreen size. Depending on the function used, partial modification of programsmay also be necessary. For details, refer to Appendix B Compatibility withScreen Data of Other PT Models (page 441) and the Support Tool OperationManual.)• The panel cut-out dimensions for the NT21 are the same as the dimensions forthe NT20S, the panel cut-out dimensions for the NT31/NT31C are the same asthe dimensions for the NT30/NT30C, and the panel cut-out dimensions for theNT631/NT631C are the same as the dimensions for the NT625C.4Functions of the NT21, NT31/NT31C and NT631/NT631CSection1-2Two Ports Featured as Standard:Port A for Common Use by Support Tool/Host and Port B for Exclusive Use by the Host• Communication with the host is possible via another port while connected tothe Support Tool.• Reading bar code data from a bar code reader is possible via another portwhile communicating with the host.Rapid System Program & Screen Data Changes Possible Using a Memory Unit.• Installing a Memory Unit (NT-MF261) on the rear of the NT21, NT31/NT31C orNT631/NT631C makes it easy to write screen data into the PT onsite.
This enables a rapid response to setup changes.• The NT21, NT31/NT31C, and NT631/NT631C can store a system programinto a Memory Unit. This enables the system to handle more flexible setups.Screen Data CheckFunctionScreen data can be checked simply by operations in the NT21, NT31/NT31C, orNT631/NT631C system menu, without connecting up to the Support Tool.Increased Screen DataCapacity (NT21 andNT31/NT31C)The NT21 data capacity of 512 Kbytes is over five times that of the NT20S andthe NT31/31C data capacity of 1 MB is twice that of the NT30/NT30C, enablingstorage of a larger quantity of screen data.Large Increase inMaximum Number ofRegistered ElementsThe number of elements that can be registered on one screen has been considerably increased, making it possible to create more expressive screens.
For details, refer to Display Restrictions (page 437).Binary Data can be Readto/Written from the HostIt is now possible to write binary data stored in words at the host directly to the PT.This makes data conversion by a program at the host unnecessary, reducing theload on the host.Character Display UsingHigh Definition FontsAny ×4 characters are displayed with a 32-dot high-definition font.Simple UpgradesBy using the system installer supplied with the ZJCAT1-EV4.6 Support Tool, thesystem program at the NT21, NT31/NT31C or NT631/NT631C can be changedeasily from a personal computer.Complies withInternational StandardsThe PTs meet UL/CSA standards and EC Directives.Compatible with OtherVendors’ Devices(NT31/NT31C andNT631/NT631C)Compatible with the Mitsubishi A-series (Calculator Link) and FX-series (Programming Console), Allen-Bradley SLC 500 Series, GE Fanuc 90-20 and 90-30Series, and Siemens S7-300 and S7-400 Series, Modicon TSX Series, Sequencers.
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