The stock suspension on the 600RR will be fine, possibly for your entire first year of track days. Of course, that depends on how many track days you actually do this year, and how fast you become. For track use, most production bikes are soft up front. For a starting point, set all fork adjustments midway. If you feel this is still too soft, like bottoming out when hard on the brakes, then turn adjustments 1/4 turn at a time, towards fully stiff. Ride...adjust...ride...adjust...ride...adjust, until you are comfortable with the feel of the front end. For the rear suspension, find out what the static sag measurement is for this bike. Set the static sag. Then determine a starting point for all the adjustments, like you did with the front end. Ride...adjust...ride...adjust...ride...adjust, until you develop a comfortable feel for the suspension.
Because you are doing this for the first time, I would suggest the following. Until you are comfortable with the layout of the track, set all suspension adjustments midway, front and back. You will probably be in the beginners group, because of your lack of race track experience. So you will be following an instructor most of your first day. Your speeds will be kept in check, for the day. Believe me, you are going to have a great deal on your mind that first weekend! Like which way the track goes, being on the right line, determining reference points for braking and turn in, down shifting, and so on. Fine tuning suspension setting, should be way down on your list of things to do, on that first track day weekend.
Once you get comfortable with being on the track, to where you dont have to think about all that I mentioned above, then begin to fine tune your suspension. To better understand how a good set up should feel, do the following. During a session, set all the front suspension settings to full soft, then ride. Get to know what that feels like. Then come in, or do in the next session, and turn all the settings from full soft, to full hard, then ride. Now you should have a feel for the end points of the suspension range. Adjust to what feels most comfortable to you. Do the same with the rear end.
MAKE SURE you bring a notebook and write down every adjustment you make and how it felt out on the track. After every session, from the very first time out on the track, download your thoughts for what you just experienced out on the track. There is going to be so much going on. This will help you keep a clear mind, to process all the new information once back out on the track...