Can someone running an ESS confirm whether G31 works or not?

Thanks

I would be very interested in this also .

I have just been able to set it up correctly. The trick is that usually your Probe Input signal is pulled HIGH and thus is active in its LOW state. Thus, you need to set the input as Active Low. The thing is that it MUST be set in the ESS Configuration Panel and NOT in the Mach Inputs panel.