Trying to learn the tricks of the trade

I am trying to manipulate ASCII values so that I stay within a certain limit. I would like to stay within 15 to 25 with what I am trying to display.
I have tried many thing leading to nothing and it is frustrating. I would like for CHNL to be the ASCII value of 15 and to stay withing my limits. How could I make that my commands in the program.

program is attached

Looking within the help in MicroCode Studio how can you differentiate the differences with PBC (basic) and PBP (Pro). The reason that I ask is that it is getting to me that I am very limited in comparison to what they are saying. Like using variables. Aren't I able to set variables in basic. If that is so then why do I get expected and illegal characters.

how would you translate:

Val var word

for PICBasic and to use 2 spaces of word to strore my value 31 35 (hex values)