pre trial conferance

There is no set limit on the number of times that the state can reschedule a pre trial conference.  Some Judges will get annoyed and put a stop to it while others won't.  Ultimately, Rule 600 is probably the best prevention against too many continuances.  As long as you object to the continuances the state only has 6 months from the date of filing the complaint until the date that an incarcerated defendant must be released without having to post bail (there are exceptions such as Murder cases) and 365 days to commence trial or the charges can be dismissed.