Using the Ping Echosounder for collecting x,y,z points

Hi, I want to use a Ping Echosounder to create a profile map. I have a few questions. How is the data collected by the echosounder stored and how many depth points can be stored if all the factory settings are kept constant? I also wanted to find out whether it is possible to obtain coordinates for each depth or do I need to collect GPS points separately? Thanks!