I will add one thing
If you have any link or know how to get to the siemens support site NOTE that in TOP left corner is a SEARCH box, enter any keywords there and it will take you to that information, the more descriptive you are the better the information pertaining to your situation.
IF you open the corresponding folders in the TREE on the left pertaining to your subject then use the SEARCH feature it will offer ONLY the information pertaining to that subject.
Simens is different but is just as in depth with information pertaining to their products as any company. If you look at the main page for automation it also offers some online tutorials on a variety of subjects.
Siemens is just different from AB, as a knowledgeable person it is your responsibility to learn to use what they offer, every site offers information in a different format. A business the size of Siemens, which has a large database of information, will do it the best way they can to provide this information.
I personally have found the Siemens automation support site to be very informative/helpful along with their Tech Support people in Tennessee(US).