hello. We create new project. Cpu-317 ethernet. 2 computers and panel 1200 comfort. 

Pls help. What i need buy? for 2 computers (with scada PO license). WInCC Comfort or higher.  how much license i need.

Hello

Use this: http://w3.siemens.com/mcms/topics/en/simatic/tia-selection-tool/Pages/tab.aspx

With the TIA Selection Tool you can select all parts you want and you can also include what you already have. The tool then detects what runtime you need and gives you all article numbers of the licenses and hardware.