Ladder Logic (LAD) and Function Block Diagram (FBD) are available for all controllers, structured text (SCL), instruction lists (STL) and sequencer programming (GRAPH) are additionally available for the S7-300 and S7-400 controller families.

唉！让我好失落啊！ STL和SCL都与S7－1200无缘了！好歹留一个嘛！ 咳，一直不习惯用LAD编程，这下杯具了。