Remote Panel launching applications

When you have a remote panel connection and do something like "Export Data to Excel" on a table - which computer launches the application - server or client?
I suppose I could test it out, but I don't have a second computer handy right now.
Edit: A secondary question is: which computer is actually running the VI, and using its resoruces (processor / ram)? Also, if the server computer has access to network shares that the client computer doesn't, can the client access those files through remote panel? ... etc.
Edit2: Found that in the documentation. It is being run on the server, which likely means it can access the server's network shares as well.

Hello,
The Client opens the front panel on the Server. When you open a front panel remotely from a client, the Web Server sends the front panel to the client, but the block diagram and all the subVIs remain on the server computer, thus the Server would launch the application. If you grant access to the Server, you would have to institute specific security measures (such as passwords) to prevent the client from accessing the excel sheet.
Here are two helpful articles that detail the server/client relationship more thoroughly.
http://www.ni.com/white-paper/4431/en/
http://www.ni.com/white-paper/4433/en/
Warm Regards,
Josh

Similar Messages

How can I disable messages generated by Remote Panel?

I created an application (EXE) to server its panel to other network clients.
I used the Tools > Web Publishing Tool to generate a HTML code to create two different web pages to access this application using Web server:
- Embedded (for some users who need visualize the panel in real time).
- Monitor (to display panel snapshots to users updated every 1 second).
I don't need anyone controlling the remote panel, so I used this option:
Tools > Options > Web Server: Browser Access and checked Allow Viewing (not controlling) for every client connected.
Ok, both are working fine. But it a user try to Request control of VI on the Embedded page (right click in the remote panel), the application running in the server displays a message: Denied control request from XXX: Check permissions.
The embedded page stills working fine, but in the Monitor page that message appears in a box (see attached picture below)..
Is there a way to disable all messages in the remote panel? I realized that I need to access the computer where the application EXE is running to close the message.
I'm thinking in two solutions:
- Unable the right click menu in the embedded page to avoid clients request control of the remote panel.
- Run a code in the application to erase messages generated.
Has anyone an idea how to solve this?
Thanks in advance,
Klein
Message Edited by Klein on 08-06-2008 12:54 PM
Attachments:
Remote Panel message.jpg ‏10 KB

Hi Dpcamargo,
I'm already using monitor with a delay of 1 second and this doesn't seems real time like remote panel visualization.
But you sent me a good tip: use java code to cancel right clicks at all....
I will try this solution.
Hey, we are both brazilians! So, thank you so much, Dpcamargo.

Unable to open desktop file /usr/share/applications/redhat-email.desktop for panel launcher: No such file or directory

Dear Experts,
Please note that I am facing a chllenge while confiuguring the VNCServer on the local test Server. The Local Test Sver OS Version is Redhat Enterprise Linux Server
Release 5.5 32-bit. Please review the following error message and advise me on how to fix the vncserver issue.
[root@test .vnc]# cat xstartup
#!/bin/sh
# Uncomment the following two lines for normal desktop:
unset SESSION_MANAGER
exec /etc/X11/xinit/xinitrc
gnome-session &
[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
vncconfig -iconic &
#xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
twm &
[root@test .vnc]# cat /etc/sysconfig/vncservers
# The VNCSERVERS variable is a list of display:user pairs.
# Uncomment the lines below to start a VNC server on display :2
# as my 'myusername' (adjust this to your own). You will also
# need to set a VNC password; run 'man vncpasswd' to see how
# to do that.
# DO NOT RUN THIS SERVICE if your local area network is
# untrusted! For a secure way of using VNC, see
# <URL:http://www.uk.research.att.com/archive/vnc/sshvnc.html>.
# Use "-nolisten tcp" to prevent X connections to your VNC server via TCP.
# Use "-nohttpd" to prevent web-based VNC clients connecting.
# Use "-localhost" to prevent remote VNC clients connecting except when
# doing so through a secure tunnel. See the "-via" option in the
# `man vncviewer' manual page.
# VNCSERVERS="2:myusername"
# VNCSERVERARGS[2]="-geometry 800x600 -nolisten tcp -nohttpd -localhost"
VNCSERVERS="1:oracle"
[root@test .vnc]# ls
passwd test.oracle.co.zm:1.pid test.oracle.co.zm:3.log test.oracle.co.zm:5.pid test.oracle.co.zm:6.pid
test.oracle.co.zm:1.log test.oracle.co.zm:2.log test.oracle.co.zm:5.log test.oracle.co.zm:6.log xstartup
[root@test .vnc]# more test.oracle.co.zm:1.log
Xvnc Free Edition 4.1.2
Copyright (C) 2002-2005 RealVNC Ltd.
See http://www.realvnc.com for information on VNC.
Underlying X server release 70101000, The X.Org Foundation
Tue Mar 11 11:18:37 2014
vncext:      VNC extension running!
vncext:      Listening for VNC connections on port 5901
vncext:      Listening for HTTP connections on port 5801
vncext:      created VNC server for screen 0
Could not init font path element unix/:7100, removing from list!
localuser:root being added to access control list
No profile for user 'root' found
SESSION_MANAGER=local/test.oracle.co.zm:/tmp/.ICE-unix/13603
Window manager warning: Log level 32: could not find XKB extension.
** (eggcups:13671): WARNING **: IPP request failed with status 1030
** (eggcups:13671): WARNING **: IPP request failed with status 1030
** (nm-applet:13697): WARNING **: No connections defined
Initializing nautilus-open-terminal extension
Unable to open desktop file /usr/share/applications/redhat-email.desktop for panel launcher: No such file or directory
Unable to open desktop file /usr/share/applications/openoffice.org-1.9-writer.desktop for panel launcher: No such file or directory
Unable to open desktop file /usr/share/applications/openoffice.org-1.9-impress.desktop for panel launcher: No such file or directory
Unable to open desktop file /usr/share/applications/openoffice.org-1.9-calc.desktop for panel launcher: No such file or directory
[root@test .vnc]#
Regards
Mohammed Abdul Muqeet

Hi,
Try these 3 solutions
1. Did you start vncserver services as:
service vncserver start
2.Check that port 5901 has not been blocked by a firewall:
# nc -vz localhost 5901
You should get a connection and a termination. If you get an error, fix the firewall.
3. service iptables stop
Hope This Helps
Regards,
-DK

When attempting to download, in the Launch Application panel, it says ..."this link needs to be opened with an application" and shows send to "CC URI Handler", but also Choose an application. How do I get past this point, as neither option seems to work?

When attempting to download, in the Launch Application panel, it says ..."this link needs to be opened with an application" and shows send to "CC URI Handler", but also Choose an application. How do I get past this point, as neither option seems to work?

Code 6 & Code 7 http://helpx.adobe.com/creative-suite/kb/errors-exit-code-6-exit.html
or
A chat session where an agent may remotely look inside your computer may help
Creative Cloud chat support (all Creative Cloud customer service issues)
http://helpx.adobe.com/x-productkb/global/service-ccm.html

Running LV application from remote panel which measures FP through different LAN

My LabVIEW application is running in a PC and it takes measurements from the FieldPoint modules which are connected via the FP-1601 network module.
I want to view and execute the application from another PC using remote panel option. The master PC has two LAN connections, one seperate connection for the FieldPoint module and the second one to connect with other PCs.
But the application returns error while initializing the FP modules when executed from remote panel.
Will the application be able to communicate and take measurements from the FieldPoint module in this case? Please explain.
Thanks for the help and awaiting earlier response.
Thank you,
Rajeswari

In principle this I believe this is a TCP/IP routing issue.
If your fieldpoint unit is connected to one card lets say
Card 01 Host 10.0.0.1 255.255.255.0 ---- Fieldpoint 10.0.0.2 255.255.255.0
Card 02 Host 168.95.0.1 255.255.0.0 ---- Lan 168.95.x.x 255.255.0.0
The routing in the host takes care of which card is used for which network segment.
My guess is that you have not seperated the network segments as shown above.
Is this correct ?

Large(ish) Remote Panel Applications?

I'm just wondering if anyone has had any luck developing Medium to Large scale remote panel applications and would be willing to share their experiences.
I ask because I'm in the process of developing an application that I intend to be deployed remotely, and have already run in to two major bugs (that got sent to NI R&D) requiring workarounds, and one plugin (the LAVA GUI plugin) that just causes LabVIEW on the client computer to hard crash... and I'm 30% done with the application. At this point in time, I am seriously considering bailing on the remote panels and trying to come up with an alternate way to deploy the app.
Thoughts?

You could access the remote application via VI Server. This is a little higher level access than TCP/IP and wouldn't constrain your interface to what you happen to have running on the remote computer.
This may be just me, but I don't think I would want to be running to a remote location because the GUI for my local system needed to change.
Mike...
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

CFP2120 remote panel shows "downloading panel 0% of 0 bytes" but never loads the panel

body {margin:8px} .LW-yrriRe {font:normal x-small arial}Good morning,
I've been trying to run a remote panel with a cFP2120 upgraded to LabVIEW
2009 & fieldpoint 6.05 (it was on labview 8.5 with 6.01) to no avail, the
program runs ok in the project manager and runs on the fieldpoint but the remote
panel doesn't. I would like to know if anyone else runs remote panels with 2009
and cFP2120s and if so was there any tricks required?
Things I've tried:
Upgraded and installed latest labview Runtime.
Tried on PC's running XP/XP Home/VISTA.
Tried with both Mozilla and Internet Explorer
Tried using a different port
Disabled firewall.
Using full name for html file
check html source code.
New project with simple program (flashing LED A on cFP), this works
Tried on two different cfP2120's
tried reformatting and reinstalling the s/w on the cFP
The front panel works fine with LabView 8.5 and FieldPoint 6.0.2
thanks for any help.

I believe that this may be a problem with the conversion from 8.5 or 8.6 to 2009. We recently ran into a problem that was similar to this. The steps that we performed to correct this were:
1.) Created a project (with only one VI called test_vi_851.vi) in LabVIEW 8.5.1
that I built into a real-time exe with a remote front panel and got all of that
working.
2.) Closed LabVIEW 8.5.1.
3.) Manually rebooted the cFP-2120
into Safe-Mode (by flipping the dipswitch on the front of the controller).
4.) From MAX, formatted the disk by right-clicking the controller under
Remote Systems and selecting Format Disk.
5.) After the controller rebooted,
reset my network configuration and name of the controller and hit Apply
(controller rebooted again to apply these settings).
6.) After the
controller rebooted (still in Safe-Mode), I added software to the controller
(FieldPoint 6.0.5 with LabVIEW 2009, controller rebooted again).
7.) After
the controller rebooted, I manually switch the Safe-Mode dipswitch back to off
and then rebooted the controller again from MAX.
8.) Launched LabVIEW 2009
and manually opened the VI (test_vi_851.vi, just the VI, not the project).
9.) I went to File»Save As... and selected the option Copy - create copy on
disk»Substitute copy for original.
10.) I then chose to name this copy
test_vi_2009.vi. Then I closed the VI, which brought me back to the LabVIEW 2009
Getting Started window.
11.) Selected Empty Project and then targetted the
cFP-2220.
12.) Enabled the Web Server by right-clicking the
target»Properties»Web Server»Enable Web Server. Then I deployed this setting to
the controller by right-clicking the target»Deploy.
13.) Returned to MAX and
rebooted the controller.
14.) After the controller rebooted, I manually
added test_vi_2009 by right-clicking the target»Add»File... .
15.) Opened
test_vi_2009 from the project and created a new html file (called mypage.html) using the Web Publishing Tool.
16.) FTPed mypage.html
to the appropriate folder on the controller.
17.) Returned to MAX and
rebooted the controller.
18.) After the controller rebooted, I ran the
test_vi_2009.vi from the project and was able to access the remote front panel
(http:///mypage.html).
Please give these steps a try, and let me know if you run into any further problems.
Nick Keel
Applications Engineering
National Instruments
Nick Keel
Product Manager - NI VeriStand and Model Interface Toolkit
National Instruments

Remote Panel of VI template

My application launches a VI template instance dynamically, and I wish to have Remote Panel access to each of these templates. How shall I create Remote Panel HTML page for each instance on the fly? Or is there any way by which I can access by template instance in Remote? My application is in LV 8.2.1 and I need this in EXE application.
Thanks,
Priyadarsini
Solved!
Go to Solution.

After launching the application, please type "http://computername:86/Instance1.html" in the web browser
Please ignore the previous attachments. There is a small issue in it. I apologize for the inconvenience.
Thanks,
Priyadarsini
Attachments:
Remote Panel for Template - LV 8.2.zip ‏31 KB
Remote Panel for Template - LV 8.6.zip ‏127 KB

I am getting a Remote Panel displayed on the remote display outside of browser. How tdo I force the panel to display in browser.

I have several machines running LabVIEW 8.2.1 my application uses remote panels embedded in a browser to display the front panel of the running VI. One machine is responding with the brower window coming up, but when the VI is launched it is displayed on the remote machine as a stand-alone remote front panel. About half of the machines have had InternetToolkit intalled, at least one machine that is working does not. the machine in question does not. Could this be part of the problem.
The enclosing web pages are generated by a .Net web server running on port 80, LabVIEW web server on port 81.
Example object block from the generated page. Other than machine and vi information I do not se any differences between the applications.

<OBJECT ID="LabVIEWControl" BORDER=1
    CLASSID="CLSID:A40B0AD4-B50E-4E58-8A1D-8544233807AE"
    CODEBASE="ftp://ftp.ni.com/support/labview/runtime/windows/8.2/LVRunTimeEng.exe"
    WIDTH="722" HEIGHT="740" >
    <PARAM name="server" value="http://hostname.domain.class:81" />
<PARAM name="LVFPPVINAME" value="Force.vi">
<param name="REQCTRL" value="true">
<EMBED src="http://hostname.domain.class:81/.LV_FrontPanelProtocol.rpvi82" LVFPPVINAME="Force_13.vi"
REQCTRL="true" WIDTH=722 HEIGHT=740 TYPE="application/x-labviewrpvi82"
PLUGINSPAGE="http://digital.ni.com/express.nsf/express?openagent&code=ex3e33&">
</EMBED>
</OBJECT>
Any thoughts or help greatly appreciated.
Thanks,
Phil

Kevin,
Thanks for the reply.
Attached is a screen shot of the problem. This is from my home machine which does not have a LabVIEW environment installed, but does have runtime plug-ins for 7.1 & 8.2.1. I also get similar results on my development machines.
The serving machines are all on campus.
The remote front panel on the left is what I expected to see embedded in the 'loading ....' field on the Web page on the right.
The application [ The iLab Project ] is complex and uses a collection of .Net Web Services to provide access to remote labs using the Internet.
Access to an iLab Lab Server running on port 80 is authorized by a Service Broker, normally running on another machine. The Lab Server, LabVIEW environment and measurement hardware are normally on the same machine, iLab Lab Server using port 80, LabVIEW WebServer using port 81.
Once the user is authorized and redirected to the Lab Server the Lab Server ensures that LabVIEW is running and the specified VI is loaded, a web page is generated on port 80 that includes the OBJECT block to display the front panel from port 81. Example OBJECT block included in my original post.
I have used this code on three other 8.2.1 Lab Servers with different VI's and the Front panel is displayed in the web page as expected.
Variations of the code have been used since LabVIEW 7.0. Prior to version 8.2 the InternetToolkit, GWeb Server and a custom CGI VI were used to generate the contents of an in-line frame to display the Front Panel. Since 8.2 I generate the Object block directly as part of the aspx processing. Is it possible I need the InternetTookit installed even if it is not used, I'm pretty sure one of my working systems has never had the toolkit installed, the machine in question has not.
I hope this makes my problem clearer, any help, pointers or further questions will be appreciated.
Phil
Attachments:
remotePanelBehavior1.jpg ‏216 KB

Remote Panel and Internet Explorer

Hello. I have a problem with a Remote Panel and Internet Explorer. I create a measurement system in LabVIEW. It�s composed of a main front panel and a few subVIs with independent front panels opened from main Front Panel when I press appropriate button. As a local system everything works ok but I try to create a web version of this system. I decide that I can use a Remote Panel. In Web Publishing Tool I was creating a web page for each of Front Panel. I try to have the same functionality as in local system, so when in Front Panel (opened in Internet Explorer window) I press appropriate button I want to open secondary Internet Explorer window with a subVI inside. And now I�m stuck because I can�t open this secondary window in a network w
orkstation. Has anyone have an idea how can I do it?

> Hello. I have a problem with a Remote Panel and Internet Explorer. I
> create a measurement system in LabVIEW. It?s composed of a main front
> panel and a few subVIs with independent front panels opened from main
> Front Panel when I press appropriate button.
I think you have two options. You can open most modal subVI panels
directly on a remote machine. The popup panels won't be in a web page,
but it will work with few changes.
A second approach would be to change the app slightly. The buttons that
launch the subVIs will turn into URL links. The links will open a web
page with a different embedded panel.
Greg McKaskle

Open url in a remote panel

HI.
I want to put a button that launch a webpage. I works fine locally, when I click OK button, a new internet window browser is open with the URL.
But if I take the control in other PC client (using Web Publishing Tool) and I click OK button a internte window browser is open in THE HOST. I want to open the new window in the Client.
Thanks.
I attach the VI (open_google.vi) and the HTML file created by WPT (test.txt)
Raymundo Cassani
Attachments:
open_google.vi ‏11 KB
test.txt ‏2 KB

Hello,
When you view or control a VI using Remote Panels that VI is executing on the host side. The VI will not be able to interact with the operating system on a remote panel client. This means that it will not be possible to use this approach to open a browser window on the client side.
You could take another approach- at least the way I would do it is thusly:
Instead of putting the button that launches the page in the VI you could put it in the html file that the remote panel is hosted in.
Using javascript you could pop up a new browser window with the URL you need.
If you need to control what URL is viewed from within the VI you could make the button point to a URL that will be handled by your VI that can redirect to the URL you need. This would be easy to do in 8.6 as you could simply export the VI as a web service. Pre-8.6 you would either have to use the G web server or build a minimal web server yourself (this would be easier than it sounds since the server would have to do nothing but redirect).
I should add that this approach would require some knowledge of HTTP/HTML/JavaScript.
Let me know how it goes.
Nathan
Message Edited by NathanK on 10-15-2008 11:07 AM

Remote Panel not working in Windows 7 Starter

Hi all,
We have an application that can be controlled via remote panel. This is working fine in Windows XP PC. But when I try to access the same by opening Internet Explorer in a PC running Windows 7 Starter OS, I only get the 'Downloading 0.00% of 0 bytes'. I have disabled the Windows Firewall and there is no antivirus software also. What could be the reason for this? How could I solve this?
Thanks in advance,
Priyadarsini
Solved!
Go to Solution.

The system which had the problem was a netbook that came with Windows 7 Starter. We found out recently that there was some parental controls utility in the netbook that prevented the LabVIEW Remote Panel access. We were not aware of its presence & it had not shown any indication that it had blocked Remote Panel communication. We uninstalled this utility & the Remote Panel started working as intended. Thanks again for your help.

Can multiple PCs access one remote panel at the same time?

I've written a program in labview 7.1 to monitor/control a labview application running in the test cell through Remote Panel. I and my coworker can remotely monitor and/or control this labview application individually. But if my coworker has the remote panel displayed on his PC and I try to get the remote panel on my PC, I get a labview error (63) as below:
"LabVIEW: Serial port receive buffer overflow.
LabVIEW: The network connection was refused by the server."
My question is: Can multiple PCs access one remote panel at the same time?
Thanks in advance!
Y

Sorry I wasn't clear. The remote panel license is separate from the number of LabVIEW development licenses. Pricing information on remote panel licenses can be found here.

Blink while alarm on using shared variables with remote panel

I am creating an application where I have front panel indicators data bound to shared variables. I also set it up to have them blink when the alarm is on. I am using the DSC module.
This works great under the development environment. But when I connect using the remote panel, I can no longer see the blinking indicator if there is an alarm. I can see the blinking indicator on the machine that is running the program, but no on any of the remote panels (I have no problems connecting to the remote panel and controlling the program).
I have the remote panel set as embedded, since I want the user to be able to change some settings over the network.
I am sure I am missing something simple, any ideas??
thanks
Kenny

I have been using IE6 and Firefox, and I have found that the blinking does show up, if you refresh the page. And then if the alarm stops and the blinking stops, you will not notice it until you refresh again.
Kenny

Remote Panels not working in embedded viewing mode

Hello,
I'm trying to develop a web version of my project using Labview remote panels. I configured the web server properties as it's described here: http://www.ni.com/white-paper/4791/en/
Currently I'm trying to create the web page on the web publishing tool. However when I select the Embedded viewing mode option I get an "Requested VI is not loaded into memory on the server computer" error on the web page that is created. But if I select Snapshot or Monitor viewing mode option the page is loaded without problems.
I'm using Labview 2013 and oppening the web page in google chrome. The VI from which I'm trying to create a remote panel has some subVIs that show the front panel when called. Is there anything I'm forgetting to configure, or do I need to have any plugins instaled on my browser?
Solved!
Go to Solution.

Mateus23 wrote:
I'm now developing the web version in HTML 5, using web services to comunicate with my labview application.
There you go, good solution. When doing this remember that you have access to the database on the server. A structure I have found effective is to use the server DB like a dropbox that I write to, and the web server reads from.
Mike...
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

Remote Panel launching applications

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