B&R have a product for data collection and visualisation. Can be used with or wo hardware. Forgot the name.. but it's their brand of the "configure trends and logging and have them sent to a Web page". I have the quote in the office.
I am currently using their mappData to collect the information. I inquired about their Aprol product and it was suggested that it was too big for something like this.
Anyways, I was hoping for more information about Labview, but I guess there isn’t anyone here who has messed with it. From their site, it looks like it would do the job. That is allowing custom calculations and trending from the runtime.