Remote Connectivity Demo Script labview移动化教程.docx

Remote Connectivity Demo Script labview移动化教程.docx

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RemoteConnectivityDemoScriptlabview移动化教程

LabVIEW

RemoteConnectivitywithLabVIEW

DemoScriptVersion1.0,February2013

GrantHeimbach,LabVIEWProductMarketingManager

grant.heimbach@

512-683-5862（work）

512-944-0128（personalcell）

RemoteFrontPanelDemo2

DataDashboardDemo7

HTML/JavascriptDemo16

MoreInformation24

TodownloadacopyofthismanualandthelatestversionofLabVIEWcodereferencedintheexercises,pleasevisit:

andsearchforthepresentationtitle.

RemoteFrontPanelDemo

Goal/目标

TheprimarypurposeofthisdemoistoshowhoweasyitistocreateaRemoteFrontPanelandhowitfunctions./最初目的用于如何容易地创建出远程前面板并使用其功能

Scenario/方案

Thepresentation/陈诉justtalkedthroughthebasicscenariooflocalmonitoring.AquickandeasyoptionispreferredsoRemoteFrontPanelswerethebestsolutioninthisscenario.Thefictional/虚构的customerinthescenariohasanexistingapplicationandwewillbebuildingaRemoteFrontPanelforitsoitcanberemotelyinteractedwith.

ConceptsCovered

∙SettingupLabVIEWenvironmentaloptionsforRemoteFrontPaneluse

∙StartingfromoneofthenewSampleProjectsinLabVIEW2012

∙CreatingaRemoteFrontPanelfromaMainVIwithinaproject

∙Talkingtothepoint（notshowing）howitcouldthenbebuiltintoanexecutable/可执行的ortransferredtoareal-timeoperatingsystem

Setup

∙TheRemoteFrontPanelserverintheLabVIEWenvironmentaloptionsneedstobeturnedonandLabVIEWrestartedafterenablingit.Leaveallthedefaultsettingsandjustclickthecheckbox.

∙Createanewinstance/实例oftheContinuousMeasurementandLoggingSampleProjectinLabVIEW2012（orlater）.CallitwhateveryouwouldlikebuthavetheLabVIEWprojectopenandreadybeforebeginningthepresentation.WewillbeshowinghowtheSampleProjectfunctionsandcreatingtheRemoteFrontPanelfortheMainVI.

1.ShowhowtoenabletheRemotePanelserverintheLabVIEWenvironmentaloptions

a.OpenLabVIEWandgotoTools>>Options

b.GototheWebServercategory

c.Showthe“EnableRemotePanelServer”checkboxisenabled（thisjustbedonebeforethepresentation）

d.LeavetheotheroptionsasdefaultbutthisiswhereyouwouldchangetheportthatitusestocommunicatethroughorenableSSLsecurity.

2.ShowhowtheContinuousMeasurementandLoggingSampleProjectworks

a.OpentheMain.VIfromtheproject

b.Showtheblockdiagramtoexplainthatthisisascalable/可升级的andcustomizablearchitecture/可重用结构

c.RuntheVIandhittheStartbuttontogetthesinewaveonthegraphandthenclicktheStopbutton

d.ClicktheSettingsbuttonandchangefromSignalTypefromSineWavetoSquarewithNoiseandthenclicktheStartbuttonagaintoshowtheothersignal.

e.ClicktheStopbuttonandthentheExitbuttontostoptheVIfromrunningbutleavethefrontpanelopen.

3.CreatetheRemoteFrontPanelhtmlpagethatwillbeinteracted/沟通，交流withremotely

a.FromtheMain.VIfrontpanel,gotoTools>>WebPublishingTool.Thiswizardwillwalkthroughthestepsofscrapingthefrontpanelandcreatingcorresponding/对应的HTMLcodeforyou.

b.UndertheVINamedropdown,selecttheMain.VIintheprojectfileinstance.Youcanrunintoproblemsifyoudon’topentheMain.VIfromtheprojectfileandthenchooseitfromthedropdown.IfyoujustcreateaRemoteFrontPanelbyopeningaVIondiskandgoingthroughthewizard,LabVIEWisn’tawareofallthedependencies/属性needed.OpeningitfromtheLabVIEWprojectgetsaroundthisissue.

c.PointoutthedifferentViewingModeoptions.Embeddedisformonitoringandcontrol.Snapshotwilljustshowastaticimageofthefrontpanel.MonitordoesthesamethingasSnapshotbutautomaticallyrefreshesthebrowseratgiveninteveralstogetnewinformation.PointoutthattheHelpbuttonhasreallygoodhelpforcreatingRemoteFrontPanels.Leaveallthesettingsasdefault（i.e.Embedded）andclickNext.

d.Onthenextpage,youcanchangetheTitle,Header,andFooterifyouwanttoandseeitupdateinthepreviewwindowbutIleaveitasdefaultandmoveon.

e.Onthenextpage,pointoutthatthelocaldirectorybeingusedbydefaultisthe“www”folder.ThisisspecifiedintheTools>>Options>>WebServercategorythatweshowedearlier.TheRemotePanelserverissetuptolookinthe“www”folderbydefaultsojustchangetheenvironmentalsettingsyouwanttostoretheHTMLfileinadifferentlocation.IfyoumovetheHTMLfilefromthefolderthattheRemotePanelServerislookingforthenitwon’twork.Thefilenameshouldbeleftasdefault.PointoutthatthefilenamereferencesthatMain.VIisinaProjectunderMyComputer.IfaVIwasopenedfromthelocaldiskinsteadoffromaproject（anditneededotherfileswithintheprojecttorun）,thisformattingwouldneedtobeaddedmanuallytothefilenamesectionfortheRemoteFrontPaneltowork.ThisiswhyopeningtheVIintheprojectisbetterbecauseLabVIEWhandlesitforyou.TheURLiscreatedfromthefilenameandisnotcustomizable.ClicktheSavetoDiskbuttonandthentheConnectbutton.

f.SincetheMain.VIshouldstillbeopenfrombefore（andthereforeinmemory）,theRemoteFrontPanelshouldshowthefrontpanelinthebrowser.IfitsaysthattheVIisnotinmemorythenopentheMain.VIfromthesampleprojectandrefreshthebrowser.RuntheVIagainandshowthatthewebbrowserisupdatingwithinformation.TrytoclicktheStopbuttoninthewebbrowserandshowyoucannotpressit.Right-clickontheRemoteFrontPanelandchoose“RequestControlOfVI”.YoucannowclicktheStopbuttonandotherwiseinteractwiththeVIremotely.ShowtheMain.VIfrontpanelanditsmessagethatcontrolhasbeentransferred.Ifauserdoesn’twantpeopletocontroltheVI,thentheycanright-clickontheMain.VIandchoose“LockControl”whileitisrunningoruseSnapshotorMonitoroptionsinsteadofEmbedded.IfsomeoneelseiscontrollingtheVIwhenyourequestcontrol,theywillgetamessageaskingwhethertheywanttotransfercontrolandtoclickyesorno.

g.IfsomeoneelseonthenetworkwantedtointeractwiththeMain.VI,theywouldjustchangetheURLtopointtothemachineIPAddresswheretheHTMLfileandRemotePanelServerwere.

h.IfsomeonewantedtocreatethisforacRIO,thenyouwouldaddittotheprojectfileunderthetargetinformation,configuretheremotepanelserveronthecRIObyright-clickingonthetargetandgoingintoProperties,andthenbuildthereal-timeexecutablewiththeHTMLfileintheAlwaysIncludedsection.TheRemotePanelServersoftwarecomponentwouldneedtobeinstalledonthecRIOthroughMAX（normalsoftwareinstallwizard）.Thereisatutorialonwalkingthroughthesestepssocustomerscanjustsearchfor“real-timeremotefrontpanel”tofinditlater

i.IMPORTANT:

TellcustomersthatremotefrontpanelslicensesarenolongerneededinLabVIEW2012andlater.Beforeyouhavetopurchaseextralicensesforeverytabthatwasopenatatime.ThisshouldbewellreceivednewsfromanycustomersthathavedealtwithRemoteFrontPanelsinthepast.

DataDashboardDemo

Goal

TheprimarypurposeofthisdemoistoshowhowwebservicesarecreatedandoperateandalsohowDataDashboardcaninteractwithrunningLabVIEWcode

Scenario

Thepresentationjusttalkedthroughtheremoteaccessscenario.SomethingsecurebutstillrelativelyeasytocreatewaspreferredsoLabVIEWWebServicesandDataDashboardwaschosen.ThefictionalcustomerhasanexistingLabVIEWapplicationthatwe’lladdawebservicetoandthenlinkDataDashboardtothat.

ConceptsCovered

∙SettingupLabVIEWenvironmentaloptionsforLabVIEWWebServiceuse

∙CreatingaLabVIEWWebServicethatcanhandlerequestsfromtheoutsideworldandcommunicatewiththeseparaterunningLabVIEWcode

∙CreatingadashboardinDataDashboardthatcaninteractwithaLabVIEWWebService

∙Talkingtothepoint（notshowing）howwebservicescouldrunonreal-timetargetsorbuiltintoanexecutable.

Setup

∙TheWebserverintheLabVIEWenvironmentaloptionsneedstobeturnedonandwholecomputerrestartedifit’snotalreadyturnedon.GotoTools>>Options>>WebServerinLabVIEWandthenclicktheConfigureWebApplicationServerbutton.ThiswillopentheWebInterface（thisiswhattheoverallsettingspageiscalled）whereyoucanconfiguretheserver.

∙GototheWebServerConfigurationpage（clickthebuttonontheleftthathasaPCandGlobeimage）.ClicktheLoginbuttoninthetoprightcornerandputintheusername“admin”andleavethepasswordblank.MakesurethattheSystemWebServerandtheApplicationWebServerareEnabledandiftheyarenotthendoso.Leavetheothersettingsasdefault.AfterEnablingforthefirsttime,youwillbepromptedtorestartthecomputer.Keepthispageopenaswewillbeshowingittocustomersduringthisdemo.

∙MakesurethattheiPadissetupproperlyandthedashboardhasbeenimported.IfyouopentheDataDashboardappontheiPad.IfyouclicktheNIcloudiconatthetopandthenclicktheManagemyAccountbutton.Usetheusernamedatadashboard.nic@andthepassword“welcomenic”.Oncetheaccountissignedin,clicktheNIcloudiconagainandchooseImportfromNICloudandthenimporttheDataDashboardDemodashboard.

1.ShowhowtoenablethewebserverthroughtheLabVIEWenvironmentaloptionsandtheWebInterface

a.OpenLabVIEWandgotoTools>>Options

b.GototheWebServercategory

c.Clickthe“ConfigureWebApplicationServer”buttontoopentheWebInterface.Thiscanalsobeaccessedbytypinghttp:

//localhost:

3580intothewebbrowser.

d.Showthateverythingisenabledandthewebserverp