Thanks,
I will try to get the newest version. Our management of license is in transition due to recent re-staffing, so I'm not sure if we can get an update or not. Thanks for the response--I've been away for a while [late response].
In viewing other posts, I think this is quite a common question (12volt DC power requirements). It appears that there are several options: Pico, Directlogix, ML1100 (mentioned here). Of these, does anyone know which ones of these have free software?