As I understand this correctly, the data is only uploaded once every hour to WeatherLink.Com 2.0
Where's the facepalm emoji gone? I think I need to use it several times over!
As far as I'm aware,
nothing has changed in 2.0 re upload intervals from WLC1.0.
1. AFAICR it has always been the case since wl.com was introduced that
archive data packets are uploaded hourly (except for Connect and EM where each data plan interval upload effectively becomes the archive packet).
2. 'Current conditions' data packets are something different for USB and IP loggers. I suspect that their format is similar to if not identical to LOOP packets, but AFAIK Davis haven't publicly disclosed their format. Not that it matters, because these packets are still uploaded every minute, with updates reflected in the Bulletin/dashboard presentation.
As I mentioned upthread, download of archive packets into local Weatherlink still works fine with 2.0 (even for EM stations amazingly enough, though with data restricted to ISS data for obvious reasons). But whether the XML API is still there I don't know - it never was part of the official API in the same way as web download, ie XML is not mentioned in the Serial Tech Ref document.
Edit: I've just checked a live site and the XML still does seem to be there, except obviously you need to use DID in place of user/station name as is the case for all 2.0 downloads.