Devicenet I/O

Hi,
I am looking for an inexpensive(<250 USD) Dnet I/O module, must have:
2 DI
1 DO
1 AI (0-10VDC or 4-20MA non powered loop. AO from another PLC is feeding this AI and not a transmitter)

Thanks

Have a look at www.wago.com they are are inexpensive as I have seen.