Hi KC,
not 100% sure what you are wanting here, but
a) I think you want a NetWebForm with a Display field on it, set as "live via web socket" and pointing at a host variable (call it anything you like - say 'kelvin')
b) In the WebServer procedure, on the timer event, you can read the comms port and put the result into the host variable with the same name. like
s_web.SetHostValue('kelvin',whatever)
If this is all set up then the new value will appear in the browser window whenever it arrives at the server.
(hint: it will come in 1 char at a time, so you probably need to wait for a CR/LF or some other "end of packet" character before pushing it into the host value.)
cheers
Bruce