You're right... TFM does indeed say "A numeric value preceded by a pound sign ( # ) will send the ASCII representation of its decimal value. For example, if W0 = 123, then #W0 (or #123) will send '1', '2', '3'. "

I glanced through it but missed it since what I was looking for was:

Modifier Operation

{I}{S}BIN{1..16} Send binary digits

{I}{S}DEC{1..5} Send decimal digits

{I}{S}HEX{1..4} Send hexadecimal digits

REP c\n Send character c repeated n times

STR ArrayVar{\n} Send string of n characters


Which is found in the SEROUT2 section.

My bad, and I appreciate the helpful responses.

-Jeff