If you use ACADe as it was designed Out of the box, there is an Allen Bradley plugin available: http://www.ab.com/raise/abecad.html
If you are like me, and you cant get enough of the social inerta necessary to convince management to use standards set by industry and scrap existing drawing databases, you are stuck. We dont even use the ARM format. (Something to be said for having a TRAINED drafter as a CAD Manager, at least to start a drafting department on the right foot.)
Anyone found a way to plug this thing into Navision?
We've had a quasi-programmer working on it for over a year now with no luck.