I'm sorry Fernando, I didn't have a CSS in front of me when I mentioned 'sh chassis'. 'Show version' will display the licenses currently associated with the device:
CSS# show version
Version: sg0810205 (08.10.2.05)
Flash (Locked): 08.10.1.06
Flash (Operational): 08.10.2.05
Licensed Cmd Set(s): Standard Feature Set
S11K-500EN-8.2 == Enhanced Feature Set. If you do a 'sh ver' and see the Enhanced Feature Set as one of the licensed command sets, you should be good.