Outboard Loop - Utilising Aes Connection

[rootsrocker]

Here's my scenario.  I use Protools and my main interface is a RME UFX.  My POD HD Pro has AES in/out connectivity, so too my UFX interface.  Whilst i've worked out how to send/record AES signal from my POD to my UFX/PT, i've not worked out how to create an AES loop.  

 

What i'd like to do is setup my POD HD Pro to use as a dedicated outboard FX processor - within an AES loop of connectivity so I can keep a signal 100% digital.  I've used the dedicated AES pathways within the UFX, I can see signal is being sent, but for some reason I can't make the loop spark to life - i'm not getting any level on the way back in.  

 

I'm aware of the AES sub-menu in the POD Pro and i'm reasonably happy my settings are correct.  I'm also well accustomed to sending signal to outboard gear, although connectivity is usually via line out/line in.  AES is new to me.

 

 

So I have a few questions - can AES be used in both directions concurrently on a POD HD Pro?  Should the AES loop i'm trying to create be workable?  Am I missing a piece of the puzzle to get this working?

 

Thanks