Is the explanation given in http://www.ni.com/pdf/labview/us/compactrio_motor_control_basics.pdf still valid for web browser control?

[gabrielcasano]

Hi all,

I am trying to control a cRIO application (FPGA vi + Host vi on cRIO microcontroller) from a web browser. Searching for a way to achieve it I found this example:

http://www.ni.com/pdf/labview/us/compactrio_motor_control_basics.pdf

My application does not use the same I/O, but I believe the steps to using it remotely via a web browser should still apply, right? Well, after following the steps here, I rename the hostvi.html to index.htm, as it indicates in the instructions. I then click. 'To Remote'. After this, it starts 'thinking', and after a few seconds it asks me if I want to overwrite the file, which I accept (as it says in the guide). The problem is that right after clicking OK to the overwriting, a pop-up appears saying 'Connection timed out... Closing FTP client', as it can be seen in the image attached. When I click OK on this, the whole File Transfer window closes automatically. I have tried typing the IP address of my cRIO in the address bar of a web browser, but instead of getting the host vi's front panel, the 'NI Web-based Configuration and Monitoring' window appears. 

I don't know if I am doing something wrong, or if maybe the instruction are not up to date anymore (I am using Labview 2011 and this was apparently written for Labview 8.20).

Thanks a lot in advance

[Jorge_C]

Hi!

Could you attach the picture with the error?

Are you on the same subnet as the cRIO? Are you able to navigate to the cRIO through your web browser (ftp://xxx.xxx.xxx.xxx)?

Willing to help you!

[Aarthi_Arvindh]

Hi gabrielcasano,

         When you type the ip address of compactrio in the browser,

it takes the port number : 3580[which is set for rio by NI], when u enable remote panel server

in crio, you have to give some new port number which is not being used by any application.

Then you enter http://ip-address : portnumber in the browser.After setting this, see whether you have

any connection problem.

[gabrielcasano]

Hi,

Thanks for your reply. I think I have attached it correctly this time.

About navigating to the cRIO, when I type ftp://ip-address it takes me to the root directory, but when I click on the html, It tries to load the front panel, but in the end it says 'Remote panel connection is closed'. Maybe this does not matter, but I have the cRIO connected directly to my development PC using a network card. Also, the pc has another network card that is uses to connect to the Internet. The cRIO is configured with a static IP address, while the internet connection on the pc has, at the moment, a dynamic one.

I hope this information is useful, and thanks again for your help.

[gabrielcasano]

Hi Aarthi,

Thanks for the help. If I understand you correctly, I think I have enabled remote panel in Tools>>Options>>Web Server. I have attached a screenshot of this just in case. If I understood correctly, when enabling remote panel server, the http port that gives you by default is 8000 (as seen in the screenshot as well), so I left it like that. Then, when typing the address in the IE, I get the following:

http://ip-address:3580 I get the NI Web-based Configuration and Monitoring site.

http://ip-address:8000 It says 'Internet Explorer cannot show the website' (sorry, I have the computer in Spanish, so I don't know if the translation is correct). When clicking on 'resolve problems' IE tells me 'The remote device does not accept the connection'.

I am a bit puzzled by this, so I would appreciate any help.

Thanks again.

[Aarthi_Arvindh]

Try using only IE browser, which version are you using.

Try to change the port number[8000] to some other, say 7000 and try it out.[http://ip-address : port number/file.htm]

Also is the html file is in extension of .htm??

Try to deploy after changing port number.

It works in LabVIEW 2010. i am not aware of 2011.