Thanks, Paul.....be sure to send any results to John Vlahos, the originator of this thread...sounds like he could use all the info he can get.

>
>I think Sheridan offers VB controls just for this type of application. There is a special interface card that is used to communicate with the controlled devices.
>We have some people doing similar work at another facility. I'll try to contact them and see exactly what their setup is if you're interested.