You should be able to connect to the radio, select the comm port, and then read the radio.
If it really is an NX-210, and the correct comm port is set, the software will read the radio and figure out what model it is. Nothing required on your end.
If the software is not doing that, then you may not have the comm port set correctly. Use your Device Manager to find which comm port the USB programming cable is picking, and set KPG-111 correctly.
If the software is giving you an error when you try to read the radio, tell us what the error says, and we can assist you from there.