Hi Nick,
You might need to explain what you are trying to do a little more
clearly. Are you trying to send 8 bit numbers between 0 and 255
(unsigned 8-bit integers) or are you trying to send 32 bit real
numbers (singles)? For the first option, all you need to do is wire
the numbers to a string type cast, and then wire the output of it into
your Serial Write. The string being written won't make sense if you
display it because the display will map the integer numbers to their
ASCII character values (will show up as garbage most likely), but the
output to your serial port will be the raw integer numbers. If you
are using floating point numbers (singles) then you should probably
check to make sure that your instrument doesn't expect strings instead
of the binary representation of the floating point number. You can
convert a floating point number to it's IEEE floating point
representation, but it's rare for instruments to want this. If this
is what you are looking for then this example might be of use:
http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=B123AE0CBCC2111EE034080020E74861&p_node=DZ53046