Hi Sam,
No problems. You want to write BF( hex), or 191 decimal. In Binary it's 10111111
Made up of
101 ----------- 115,200 baud
11 -------- 8 bits, 1 stop, no parity
1 ------ Limit Error Flash
1 ---- Unused
1 - Check inter message gap
Write the value in then reset the ModIO, then change the baud rate to 115,200 in Mach3.
Cheers,
Peter