Hi Greg,
Thank you for your repply. We use something similar for some thermocouples but with the Ethernet version. It would be a good solution if I can find a module that has analogue inputs and outputs and some digital lines (single ended). I found the other day one with all of that but with LVDS lines (which I could use anyway, with an interfacing IC). A colleage of mine is working on an Arduino based Ethernet device in order to interface it with Labview, so we can use it to control/monitor some of our equipment without the need of using an expensive PXI or even a cheaper cRIO. Space limitation is as well a factor to take into account, as we don't have so much space available in our cabinets and the ideal device should be small enought to be incorporated inside our units (in other words, we want our "independent" units to be controlled by ethernet). We've got about 50 PXI systems for data acquisition and motion control, but for this particular application we don't have any of those systems near by in order to use one of the spare slots for this purpose. For the initial tests we'll probably use the USB-6009 and a spare Windows based PXI we are expecting to receive soon, but for the final version we need something cheaper and more compact. I'll keep you posted whenever we find a solution.
Thank you everyone for your replies. I believe I've got my question answered.
Cheers,
Alex