I have a 1756-WS Module installed in my local rack that I communicate via an ...

I have a 1756-WS Module installed in my local rack that I communicate via an ENBT ethernet module.  When I browse the rack in RSLinx the Hardy Module is displayed with a yellow question mark and  "Unrecognized Device, Hardy 1756-WS (HW REV C)".  Is it possible for RSLinx to recognize the device correctly.

You probably need to register the EDS file for the module.  Once you do this it should get rid of the question mark.  However, if you do not do this, then it will still work properly.

Find attached a copy of the EDS file for the module.