AB network card

A few years back we had a machine that used an Allen Bradley card in the rack that allowed us to tie our ethernet machines and DH+ machines together on the same network. Anyone familiar with this interface? I would like to use the same card in another application.

I remember having using a similar board but inside a PC.

In general, Ethernet to DH+ bridging would be done with a 1756-ENBT (or similar) and a 1756-DHRIO module in a 1756-series ControlLogix chassis.

What exact sort of "rack" are you referring to ?

It was a SLC500 rack with an ethernet processor which we linked together with 6 DH+ machines.

Well, then, you're describing something I've never seen.

An "Ethernet Processor" in the SLC family would be the SLC-5/05 controller. There are no add-on DH+ modules for the 1746 chassis.

A 1756-series (ControlLogix) chassis is the same size as a 1746 (SLC) chassis, but the functionality is very different.

I'm certainly willing to be surprised by something special in the SLC family, but my guess is that you were looking at a ControlLogix chassis. These "Gateway" functions were available in the very first generation of ControlLogix hardware in 1997, even before the 1756-L1 controller.

Well there was a Pyramid Integrator system that could be configured to tie Ethernet and DH+ together.

Im starting to think it wasnt an AB part but made by someone else. It kinda reminded me of the ProSoft card we use for ASCII