Burgy,
Looked around the shop a little today, you'd think with 82 CNC's there'd be a 6T manual somewhere, no luck yet.
As for alarms during data transfer: 6T's do not take command readables. Usually the control will just dump the command readable and give you a blank line. You can format a leader with a "/" before and after the text, you can not use the letter "O" in the naming convention, ie: :0001/FIRST 0P/ substitue zeros instead. You may find a few other illegal characters.
File transfers that quite during mid-download are usually caused by one of two things, bad codes or full memory. Alarms received even though full D/L occurs are generally caused by the end of file character missing, normally a "%".
Just some tidbits, I'll keep looking for a book. Do you realize you can buy old manuals from FANUC? ($75 to $150).