> shows up in the log "Ser In" box is one number higher than what was sent.
Does your macro look like
...<RX><INCR><LOG>
or
...<RX><LOG><INCR>
That is, do you log before you increment the number, or after?? Even better, you can use the <XBEG> and <XEND> to actually save/log what you sent.? (see )