How to get Scanner ID (Coreless Type - DS8178)

Hi all,

I'm programming an application (C#) to manage bar code read from 3 coreless Scanner DS8178.

I used 123Scan to modify bar code data that help me know which scanner data come from.
Now I want to send a response signal (a beep) back to that scanner, so I need the Scanner ID.

Unfortunately, the raw data received only contains the ID of Cradle.

So please help me get the ID of the scanner which send the data.

Thank you very much.