Can't answer your question directly but it does NOT work on my CMX44 so I would guess your results may be similar. I get an error message saying the plugin does not recognize the driver? Since it's plain old simple ascii serial I'm not sure why that's important. I asked about broadening support of the existing VS plugin for more of the VS devices a while back but received no answer. Understandably there are bigger fish to fry.
I have been using the MLGD plugin with good results. I think it's the same price but you get to have all the fun of writing it yourself.