Learning STL

Just started playing with SIEMENS S7-300 contoller, notice that a lot of OEM apps are using STL language with not all can be viewed as ladder. I have absolutely no experience with this language, anyone no of any good tutorials or anything to help learn this language?

Thanks

Hello rocket;
The following link will let you download a STL manual for S7. Good place to start.


http://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&lang=en&siteid=cseus&objid=11678629

If you have installed Syep 7 on your computer, manuals in pdf format are available in the Simatic\Documentation folder. One of them is called "Programming with STL".

Hope this helps,
Daniel Chartier

Thanks a lot Daniel, this looks like a great place to start.

Rocket:

Try here http://www2.automation.siemens.com/fea/html_76/down_module.htm


Appendix III at the bottom of the page has very good comparisons

I purchased Hans Berger's book on STL - I'm less than impressed, so far. It appears exhaustive but is a bit daunting for one just starting out with STL (as I am also)

I purchased Hans Berger's book on STL - I'm less than impressed, so far. It appears exhaustive but is a bit daunting for one just starting out with STL (as I am also)

Click to expand...

As you say, it's a bit daunting for somebody just starting out in STL, but hang in there, as you get more comfortable with STL you'll find there's hardly a question that isn't covered by Berger. It's a really good work of reference that still manages to include important practical information. Good example, the use of the address registers AR1 and AR2 with indirect addressing and the limitations / potential conflicts with this.