Drive fault monitor

Not sure if this is the right place, but I think it is. Anyway, I have a 3 axis milling machine that uses closed loop steppers. The loop is closed at the stepper drive, not in LinuxCNC.  The drives can signal if they detect a fault in either following error exceeding the set parameter or other fault. It is basically closing a switch.  The fault pin of all of the drives are wired in parallel so that one pin on my breakout board can be tripped. I want to connect this signal to a linuxCNC pin so that if fault is detected by one of the drives, LinuxCNC will stop motion and notify the user. I have a workaround right now. I have a single home/limit for my x-axis, so I set up the x limits in LinuxCNC with home/limit at the positive end of travel, and use the drive fault to trip what LinuxCNC believes is the x negative limit. Seems to work well in bench testing, but rather than trigger a limit and notify that a limit was hit, I would like to have it do essentially the same steps except notify that a drive fault was detected. Can anyone point me in the right direction for this?

Perfect..Thank you.