Simple mobile smartphone demo build with Oracle APEX connected to WinCC OA (www.etm.at).
It tooks me about 3h… and i had NO experience with APEX!
The map does not work on (my) android smartphone… maybe a known bug: http://www.oracle.com/technetwork/developer-tools/apex/application-express/apex-42-known-issues-1863578.html
Connectivity WinCC OA <=> Oracle:
Oracle-DB => PL/SQL => XMLRPC-Calls => WinCC OA (Control)
Currently the connectivity library is very basic, but if i will find some time i will extend it… and you will find it on sourceforge…
if you have a valid Oracle database license APEX is for free! if you don’t have one, you can use Oracle-XE, which you can get for free…. 🙂