Developing web enabled applications with Labview 6.0

can someone point me to some document or a good resource to learn to develop web enabled applications. Suppose I am controlling some hardware in my lab thru Labview. Can I make some application that would allow me to control it from web so that I dont have to be in the lab.
Thanks,

Search through examples under "Networking". There you will find all you need to get yourself started on internet applications.
Also, search the NI website for internet applications, remote VI server, datasocket, and similar keywords. There will be application notes, articles, support documents and other resources on the website. There should also be similar documentation within LabVIEW help.
Also, there should be some books out there that cove the topic.

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Examples of 'calling a web dynpro application with parameters'

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I'm I have been watching manual 'Web dynpro for abap: advanced concepts' in the sections 'url parameters' and 'calling a web dynpro application with parameters'.
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Thanks in advance.

Hi Ana,
a window inbound plug can have parameters.
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URL
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Developing Web based applications using developer 6.0

How best i can use developer 6.0 as a web based application. I
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null

T.Pavan Kumar (guest) wrote:
: How best i can use developer 6.0 as a web based application. I
: have oracle web application server 4.0. Is it possible to
: develop forms in 6.0 and use through the web application
server.
Yes, it's possible and it runs.
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Developer, but you can download or order it from OTN)
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for your end user's browser
Tip:
look very carefully at the documentation AND readmes. Also, if
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peter
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Context root for web Module application (with slash)

We are on PI 7.31. I am getting URL not found error with web application in certain cases. Initially, i had thought it was not working because of the Slash. Later I realized it was happening with only keyword 'inbound'.
Edited:
my alias (context-root) starts with "inbound" and that is the problem.. For me when i try anything other inbound it works..
For some reason, when I put my context-root as 'inbound' it gives me the message that URL does not work. All other context roots with and without "/"(slash) works.

Okay, The URL prefix in the SMICM is generated from the Services/external Alias defined in the SICF. Unfortunately in the new PI 7.31 environment, the URL prefix is stripped down to the first level.
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We are creating a message with SAP to see if this will be the standard behavior going forward. Anyone encountered such an issue before?
Moderators, I guess this question needs to be moved to a different topic thread. Wondering if I should close this thread and open a new one ?

Cannot build application with labview 7.0

I had built application previously using labview 6.X while some of the V.I. are without block diagrams, but I couldn't do that any more with labview 7.0 as a error will be prompted, why is this happening & are there difference in application builder between labview 7.0 and previous version? Must I load those V.I. without block diagrams dynamically now ?

Unfortunately it is impossible to build application with newer version with VIs without block diagrams, which saved in oldest version.
from ni web site:
"National Instruments does not recommend saving VIs without block diagrams because LabVIEW needs the block diagram to recompile the VI after an upgrade. When you upgrade LabVIEW, you must find a version of the VI that includes its block diagram to recompile it. Such a version did exist before the block diagram was removed because it is impossible to create a new VI without a block diagram."
"Based on that information, it should be clear that once a VI is saved without diagrams:
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More information:
http://digit
al.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/00a6bacda1c01a0786256b60006163e7?OpenDocument
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/28c4cb0cf83e1a1d862566e2007a2a9c?OpenDocument
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/fee732f4b1541b9586256bf0006a78ca?OpenDocument
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/0649a3350de20aa186256d91007b3d61?OpenDocument

Securing Web-Dynpro application with Netegrity

Hi,
I'm developing a web-dynpro application that will be secured by Netegrity SiteMinder. SiteMinder is a reverse-proxy that authenticates the user and adds the user details as additional headers to the HTTP stream. According to the documentation I found in SDN with regards to JAAS and NetWeaver it looks like SAP has added callbacks so that I can retrieve HTTP headers in my custom login-module. I've implemented a simple login-module and deployed it, but now am stuck with the following issues:
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Regards, Chris.

<b><b>Hi Adrian
During the Life cycle of your application Your connection will be Released when it is inactive for particular Time (The inactive time limit will be specified in the JCo Pool Settings that would be in milli seconds)
The RFC Connection can be Monitored using the Gateway process .
There are Some Predefined Connections in the Gatewway Process and each connection Requires approximately 200Kb of Memory.
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<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/85a483cb-0d01-0010-2990-c5168f01ce8a">JCo Connection Pools</a>
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How develop the ITS application with R/3 tables

Hi All,
Can you please tell me what is the procedure to develop the ITS application
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Hi,
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best regards
Tobias

Controlling Solenoid Valves for a water level application with LabVIEW:

Hello,
I am trying to control the water level in a tank using solenoid valves with LabVIEW.
I have an ultrasonic sensor that is going to measure the water level in the tank, I have the working VI (attached) for how the sensor measures the water level, I have made the vi so that it measures the distance the water level is away from the sensor (the sensor is attached to the top of the bucket). The vi which is attached also calculates the volume as more water is added into the bucket (the bucket is frustum shaped).
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Basically, turn on and off the valves based on how much more water needs to be added into the bucket and what the desired percentage is.
The equipment that I have is:
Ultrasonic sensor: http://www.amazon.com/Ultrasonic-Module-HC-SR04-Distance-Arduino/dp/B004U8TOE6
Solenoid Valves: http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=290763981675&ssPageName=ADME:LU:US:3160
3 buckets.
I need some ideas on how I can complete the rest of this project. Thank you in advance! Please see the attached vi.
Attachments:
Sensor.vi ‏28 KB

Thinking off the top of my head, if it were me, I'd start with the master-slave design pattern.
In the master loop, put your vi for reading the level.
In the slave loop, put very simple logic that looks at the value coming from the notifier and takes one of three actions each time a notification is received:
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Oh yes, when shutting down, there is one thing that you will need to be sure that you do - to prevent wet feet. But I'll leave that for you to figure out as well.
Mike...
PS: This is homework right?
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

Closing window of web dynpro application with exit-plug don't run in the EP

Hi everybody,
I want to close a window that contains a Web Dynpro with a close button, because it's used and create as a popup from an other iView (that's not created with web dynpros) in the EP. I read the different threads how to close a window in web dynpro, like JavaScript in WD
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com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Exit-Plug must no be triggered with an URL when running in portal. Use portal navigation instead to navigate to another application!
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(...InterfaceViewController().wdFirePlugExit(url);)
but than a new window with the EP open and the old is still there!
We use the NWDS2004s an the EP 7.00.
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Thanks for any hint
christian

Hi,
This is what you can do:
1. You have already created the HTML file with the necessary javascript in the foloowing folder structure :
src->Mimes->Components-><your component name>-><fileName.html>.
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http://<server>:<port>/webdynpro/resources/sap.com/<development ComponentName>/Components/<namespace>/<fileName>.html
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try {
String u = WDURLGenerator.getAbsoluteWebResourceURL(wdComponentAPI.getDeployableObjectPart(),"filename.html");
wdComponentAPI.getMessageManager().reportSuccess(u);
} catch (WDURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
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Regards,
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Stand-Alone application with LabView 7.0 getting error can't find DAQmx clear task.vi

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Go to Solution.

Hi LabTech09,
When you run the executable on the other computer is when you get this error? Do you have the exact same versions of LabVIEW and DAQmx on both computers? Does the dialog allow you to navigate to the DAQmx clear task.vi? If so, you can find these VIs in C:\Program Files\National Instruments\LabVIEW 7.0\vi.lib\DAQmx\configure\task.llb. Does the executable work on the development machine (the machine it was compiled on)?
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Jim Schwartz

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How open an application with labview

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Multithreaded application with labview IMAQ & WinXP on Dual Core Processor

Hi all,
I am working on a multi-threaded vision application on a
PC with the latest Core 2 Duo processor. I have image data coming over
two TCP sockets, and image processing using the IMAQ Vision libraries.
I have managed to parallelize the image processing, TCP communication, and display functions.
I
have 2 Image processing loops, 2 TCP loops (one for each socket), a UI
loop, and a display loop. Inter-loop communication is via 2 Q's and a
few notifiers.
The image processing and TCP VI's are all re-entrant. The TCP and Image processing VI's are on different threads.
I tried playing around with changing priorities on the VI's but it made things a bit worse.
My questions are:
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2 Can these dll calls be made re-entrant? Would it make a difference?
3 Any way to set two different instances of the same
re-entrant VI on the diagram on DIFFERENT threads?
3 Any other ways I can improve performance?
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Hi Neville,
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Chris
Applicatoins Engineer
National Instruments

Developing web enabled applications with Labview 6.0

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