straton Runtime starts in Demo Mode if you enter a false (or no) serial number or a false (or no) activation key or if no dongel is connected. The Demo Mode stops the straton Runtime after 15 minutes. With a special demo serial number the straton Runtime runs continuously for 30 days. After these 30 days then the maximal time of the straton Runtime is again 15 minutes.
You did not buy the straton Runtime license but you own a valid >CD_PRODUCTNAME< Runtime license. Then a mini version of the straton Runtime is licensed automatically. With the mini version up to eight TAGs (=variables) can be used by straton via input/output mechanisms. TAGs are variables of field bus drivers and variables with profiles (e.g. B&B profile straton).