Steve:
I think you need to find your manuals and look up the parameters for output.
There is a parameter which interprets the eob (end of block character, ; , on a fanuc) as either cr, cr lf, or cr lf lf.
simply set this parameter to cr. The operators manual, programmers manual, and the service manual all cover the parameters. One is much better than the others, but I don't remember which one. I think all of your fanuc 11's will use the same parameter number for the output setting.
Fanuc 6's have the same choices, but the parameters are structured much different. Again check the manuals. On the 11's, I think the parameter is in a different place than where you set the baud rate, but I'm not certain.
Lots of luck