preset trigger via serial input

[SourceChild]

We can send TCP commands, so if i good understand i need to send from controler command to port 8080 "commands/?RunPreset=1" or just "?RunPreset=1" or something else?

You need to send the entire HTTP message including the port number. This will be like so:

http://XXX.XXX.XXX.XXX:8080/commands/?RunPreset=#