Parsing HTML code in LabVIEW

[Sharon_]

Hi friends,

I am developing a VI to test webpages.The webpage is just like our LabVIEW front panel with LED indicators and button/slider controls. I have simulators to see the changes on the pages.

But what happens is, there is no the change in html Source Code. If it is not changing then how am I going to parse the page and get the results?

Or Am I looking at the wrong data? Isn't it source code?

For instance:

For this case, the source code is :

primary.html

For this :

Source code:

standby.html

There is absolutely no difference between these two files..

And I have no idea about web page technologies.. Please help..!!!

Thanks for your time..!!!

Sharon

[Phillip Brooks]

The top half of the files you posted contain functions that your web browser interprets to update the page based on values read from the server.

I don't think you will be able to use this method to check the status of the valves.

I went to the Rotork site and found a page that describes the Pakscan product listed in the AJAX code of your files.

http://www.rotork.com/en/product/index/pakscanethernetdemo

According to the documentation, the device supports modbus. You should be able to communicate with the Pakscan this way.

If you are trying to write an application to test / validate the Pakscan UI, I don't think your current method for retrieving the device data will work.

[Sharon_]

The top half of the files you posted contain functions that your web browser interprets to update the page based on values read from the server.

I don't think you will be able to use this method to check the status of the valves.

I went to the Rotork site and found a page that describes the Pakscan product listed in the AJAX code of your files.

http://www.rotork.co...canethernetdemo

According to the documentation, the device supports modbus. You should be able to communicate with the Pakscan this way.

If you are trying to write an application to test / validate the Pakscan UI, I don't think your current method for retrieving the device data will work.

Hi Phillip,

Yes you are right. But Is it possible to read AJAX strings in LabVIEW.? I am reading 'AJAX for the Absolute beginner' now aah.. .I think I need a lot of time to understand how things work..uff

I found some posts related to AJAX in LabVIEW - but not very useful..

Sharon

Edited March 11, 2011 by Sharon_