Just for some more info, here is a screenshot of what my "Safety Logic Circuit" looks like on a robot where I was able to successfully forward the status of the programming pendant E-STOP (PPESP) to global safety output 1 (GSOUT1).
In order to edit the Safety logic circuit, you need to be logged into "SAFETY MODE". Password for this mode is 5555555555555555
This example is on a YRC1000.