Tool Life CNC Control Fanuc iSeries

Hello friends

I have a Doosan Puma CNC with Fanuc i Series control, my question is

do you know how or where I can read the tool life from the PLC? Is it a data type D, R, F, G?

In this case, I already know how to read and write in macro variables from the PLC with the WINDR and WINDW commands

and I am looking to read the tool life and write it to a macro, but I have already searched the entire ladder but have not found anything yet

I would really appreciate it