Can I watch/trace the data exchanged between the browser and the netSCADA device?

Can I watch/trace the data exchanged between the browser and the netSCADA device?

The Plugin "Firebug" for Firefox web browser allows you to monitor the exchanged data.

Once installed and enabled "Firebug" choose the option "Console" in the middle menu.

Next to "Console" click on "all" to get all traced exchanged commands between browser and netSCADA device on HTTP level such as GET and POSTs.

If you unfold one of the POST commands by clicking to the plus sign next to it you get presented the exchanged data.

It is a human readable ASCII char string. Each entry consist of the "address", the "value", the "timestamp" and the "status" and the corresponding values.