Found an integrator named Crucial Controls that appears to freely share the module they developed to directly interface with Control Wave PLCs. (BSAP for anyone searching for this later)
Module:
Does anyone have first-hand experience using it? Is there anything I should be wary of if I decide to try it? Looks like testing was done on v7.9, but I'd be using v8.1. Is that a dealbreaker in and of itself?