Alas no, but unless you need 120VAC for anything else in your remote panel you can just have one 24VDC supply to the remote panel and power the buttons and lights with this as well as the Mod-mux units.
I checked w/ Beckhoff (I've been considering trying them out) and their rep told me that they have an Ethernet adaptor at the present but it does not play well with Ethernet/IP. An adaptor for Ethernet/IP has been developed and is supposed to be out in the next couple of months.
I'm not reccommending this for an industrial application, but about a year ago I picked up two of these kits and used them on an in-house project. They actually work pretty well. The only thing is you will need two kits for I & O at each end.