topic Re: Get Labview plugin automatically to view front panel remotely with a browser in LabVIEW

Get Labview plugin automatically to view front panel remotely with a browser

Groupe ESIEE — Thu, 27 Mar 2003 15:00:11 GMT

For viewing a front panel remotely in a web browser, I guess it is possible to use Labview plugin instead of RTE which requires administrator rights on client machine (Windows 2000). What is the URL I have to used in the "pluginspage" parameter of the "embed" object ?
I used pluginspage = "http://digital.ni.com/express.nsf/express?openagent&code=ex87nm&" few weeks ago, but code is now invalid.

Re: Get Labview plugin automatically to view front panel remotely with a browser

Dennis_Knutson — Thu, 27 Mar 2003 19:00:34 GMT

The link says you have to use the RTE WITH the plug-in, not that there is a separate plug-in available.

Re: Get Labview plugin automatically to view front panel remotely with a browser

axiom222 — Thu, 29 Jul 2004 22:12:19 GMT

Can I get only the browser plug-in from somewhere? As the whole RTE is >32 MB to download I would like to have a smaller download file which only contains the web client functionality... Is this possible?

Thanks

Get the view of the VI in remote panels through the Web.

Guig — Wed, 29 Mar 2006 08:09:46 GMT

I try to publish vis through the web but when i run the page, no images appears.
With FireFox, it tels me i have to get the plugin and with IExplore i have a message that tells me "the server can't display this image", or something like that. When i tried to get the plugin with firefox, i was droped on the Labview RTE downloding page... So i tried to install this one but an error occured that told me "the runtime is alredy installed"...
So what have i to do to get this front panel image.
I have seen when i download the RTE, that when we install the runtime, we have to ticks an option to get front panels visible. It was not done (i think) and i can't see how to do that now.
Can you help me please.
Thank you!

Re: Get the view of the VI in remote panels through the Web.

JLS — Wed, 29 Mar 2006 23:00:57 GMT

Hello all,

You will find extensive documentation on this in the LabVIEW Help (click Help -> Find Examples... in LabVIEW). Search the phrase "web publishing tool" (without quotes) and you'll get a list of relevant documents including the following titles:

1. Creating HTML Documents and Embedding VI Front Panel Images

2. Publishing VIs on the Web

3. Viewing and Controlling Front Panels Remotely

4. Embedding a Front Panel Image in an Existing HTML Document

5. Embedding a VI in an Existing HTML Document

6. Viewing an Application or Front Panel Remotely Using a Browser

7. Web Server Syntax Examples

8. Web Publishing Tool Dialog Box

There are more there as well, but hopefully this sampling gives you an idea for the information you'll find there.

I hope this helps!

Best Regards,

JLS

Re: Get the view of the VI in remote panels through the Web.

Guig — Thu, 30 Mar 2006 07:19:51 GMT

I'm afraid that doesn't help me!
Is there any one who know the solution?
I have done that i have learned in scool, and the it worked very well, but here,in the company, it doesn't work!!!

Re: Get the view of the VI in remote panels through the Web.

JLS — Thu, 30 Mar 2006 17:41:26 GMT

Hello,

I don't think I understand exactly what you're having trouble with, but documents I referred you to above constitute almost everything you will need to know about the web publishing tool. If you can be more specific about your problem, I can try to help you, but if you haven't actually read through the documents I noted above, I highly recommend you do so. There are syntax examples and explanations which should help you understand fundamentally how to use the tool, afterwhich you can apply that knowledge to your specific situation.

Best Regards,

JLS

Re: Get the view of the VI in remote panels through the Web.

Guig — Fri, 31 Mar 2006 07:10:31 GMT

I use the french vesion of Labview, and when i go to search examples, with the example browser, and i ask for "web" in the tab "search", it gives me the following answers : HTML Report, Test Report, Text Report. Nothing about that i want! And when i click on the tab "Browser", nothing most significative appears.

My problem is that i want to see the dynamic remote control through the web, so i have used "web publishing tools...", then, i have given the name of the vi and chosen in the "view option", "control and monitoring". I have saved the html page in the root server directory and click "ok"!
When i try to run the web page, that doesn't work. with MS IExplore, on the frame where must appear the vi, the following message is visible:
"the client does not have access to the remote panel server".

Re: Get the view of the VI in remote panels through the Web.

JLS — Fri, 31 Mar 2006 23:28:41 GMT

Hello again,

Ok, that sounds like a standard use case - just viewing the published front panel. When you say, "root server directory" do you mean the C:\Program Files\National Instruments\LabVIEW X.x\www directory? I will post here a standard answer I have prepared regarding remote panel access in LabVIEW - it includes instructions for how to deterministically get started, and then we can deal with any differences from the standard case that you might require.

Here is the standard answer I composed:

The web publishing tool allows you to publish the front panel of any VI to the web using LabVIEW's built in web server. Then, based on IP address you can either allow people to view and control the VI remotely, or simply view the VI, or deny access altogether; these are configuration options you have for the built in web server. You can also configure which VIs are even viewable (ie. exported for view). For a web published VI, LabVIEW simply posts the current image to the web and then allows access to the VI per your configuration.

The basic steps are:

1. Enable and configure the LabVIEW Web Server; see Tools -> Options... in LabVIEW, and then "Web Server:" drop down category selections in the window that pops up.
2. Publish the VI of your choice using the machine on which the VI will run; see Tools -> Web Publishing Tool... in LabVIEW, and the window that pops up will allow you to customize the web page. You can further customize the web page by modifying the html document directly. When you click Save to Disk an html file with the name of your choosing will be written to
C:\Program Files\National Instruments\LabVIEW 7.1\www

All you have to do then is record the URL that is assigned to it and use it in your favorite browser; the form of the URL in general is http://yourIPaddress/nameOfYourVI.htm

Note that when the URL is constructed, every space in the name of your VI will be replaced with %20. Thus, to avoid strange looking URLs, simply name the VIs you wish to web publish without spaces.

I hope this helps you get started, particularly the basic steps. There is actually more to the standard information, but I didn't want to throw too much more documentation at you at this time!

Best Regards,

JLS

Re : Get Labview plugin automatically to view front panel remotely with a browser

fredni — Sat, 09 Dec 2006 18:36:17 GMT

I had the same problem and solved it, using this wonderful link:
http://digital.ni.com/public.nsf/allkb/151be12c055f57ce86257043006cb4b3
Hope this will help

Re: Get the view of the VI in remote panels through the Web.

indrajit — Wed, 06 Feb 2008 12:59:09 GMT

hello
regarding remote execution
i am not able to edit the url
where and what i want do ,help me
i want to edit my ip address ...as this msg refered

Re: Get the view of the VI in remote panels through the Web.

Devin_K — Thu, 07 Feb 2008 20:55:47 GMT

indrajit,

Your remote front panel needs to be hosted from the LabVIEW web server in order to di displayed correctly. The URL location where it is hosted will depend on the IP address of your computer. If you wish to change the address, you will need to change the IP address of your computer. In order to do this, you will need to talk to your IT administrator or change the settings of your router to assign yourself a different IP address on your network.

Re: Get Labview plugin automatically to view front panel remotely with a browser

Mons — Wed, 18 Jun 2008 13:00:54 GMT

If you want to use the web-browser to control or just to have the access to your VI on the network target, you have to fulfill the following steps:

1. Ensure that you've configured your remote target to provide access via web-interface. To do this you can refer to this page: http://digital.ni.com/public.nsf/allkb/A4915E8E1271951086256B22005C2CAB

2. Install the plug-in for viewing the remote panel.

Once has been installed, LabVIEW creates the following paths:

c:\Program Files\National Instruments\Shared\LabVIEW Run-Time\8.2\Browser Plugins\Internet Explorer\LV82ActiveXControl.dll
c:\Program Files\National Instruments\Shared\LabVIEW Run-Time\8.2\Browser Plugins\Mozilla\NPLV82Win32.dll

If you use Mozilla Firefox, you need to copy the library NPLV82Win32.dll to the directory c:\Program Files\Mozilla Firefox\plugins\ and restart this browser. Internet Explorer normally doesn't have the problems with it. But if it is the case, the IE will ask you to install the plugin and will search it in the former directory. Afterwards, you'll get your labview plug-in in the next directory: c:\Program Files\Internet Explorer\PLUGINS\LV82ActiveXControl.dll

It should be noted that the labview plug-in always need to be used in bundle with LabVIEW Run-Time Engine (RTE) of the same version, so the stand-alone *.dll will not work as a plug-in.
Download the proper RTE version from the NI site http://joule.ni.com/nidu/cds/fn/p/sn/n23:4.28.5000/

The test has been carried out with and without RTE on IE7 and Mozilla 2.0, LabVIEW 8.2.

Message Edited by Mons on 06-18-2008 08:00 AM

Re: Get Labview plugin automatically to view front panel remotely with a browser

namrooty — Tue, 26 Mar 2013 11:43:15 GMT

1515165165161

Re: Get Labview plugin automatically to view front panel remotely with a browser

WNM — Mon, 16 Dec 2013 20:47:12 GMT

This past weekend our corporate IT group did one their periodic updates to all site computers and when I came in I found that none of my computers could connect to a cRIO's remote front panel (it worked last Friday). I instead got a message saying that "a plugin is missing". Looking at the list of available plugins, none of the NI plugins appeared (in FF, enter "about:plugins" in the address field) even though they were clearly present in the "C:\Program Files\Mozilla Firefox\Plugins" folder. I did a lot of fumbling around and found this link that talked about what to do if the WMP plugin was missing. In it it said:

"Important: Mozilla/Firefox 21 no longer scans the <installation directory>/plugins folder by default. If you have installed the new WMP plugin and it is not detected, either set the preference plugins.load_appdir_plugins to true in about:config or else move the "plugins" folder into the "browser" folder, located inside the installation directory."

So I entered "about:config" into the address bar of FF, found the "plugins.load_appdir_plugins" entry, changed it to TRUE and then when I again checked "about:plugins" again all the NI plugins once again appeared. I could then use FF to reconnect to my cRIO.

I report this here in case it might prove useful to someone else (or if I forget what I did and need to re-do it at some future date).