Thanks Dale for clearing up my earlier statement. Looking in the parameter books seems you can't have both M02/M30 and an M code described in 6710 at the same time. Not sure where the OP is getting 6700.1. None of my books have anything in bit 1.
Anyway... what I said earlier about spare M codes and Finish signals really is a nightmare. This one seems like it's something a little different.
I went to post a response with the same info you gave, but when I hit submit I got a 403 error for some odd reason, then I couldn't get back in and had to restart my browser. Too weird.