Read Serial Port

[Wilson2517]

Hi,

I need know how can do capture of "log" and execute an action, but I need to do capture a block to string.
for example:

I have a this string from "Log"
19:26:18 Puerto Virtual.├Á├Á├▓"├│RSWXCHA├┤P01:0├Á├Á├▓ ├│RMINSPR├┤09 03 010000000

Now I need capture only (P01:0)

How can to do for capture this block?

Attach image.

Thanks for Help.