How to check work home position from a program

Hi! English isn't my first language, so sorry for any mistakes.

I'm trying to read in the program when the robot is in the work home position, and I already found the external signal that says it's at the home position, but since it's external, it can't be read from the program.

I already tried with:

DIN B000 OT#(3002)

JUMP *LBL_1 IF OT#(3002)=B000

I hope you can help me out.

Thank you very much, it has worked for me. Do you know if there is an equal one for emergency stoppage?

I already found it jiji