opening port

just upgraded to surface pro 4, everything worked fine on old tablet pc I an now getting no comm. what port do i open for communication >?
i do have the correct engine etc

re: Port and engine...

Hello Slice
Best thing to do is simply read the first couple pages of the manual. That takes few minutes--and saves me 25min of typing to repeat it.

Lots of good info in there! Check the 'Distribution disk' you downloaded. There's a copy in there. and over to your left, under Manuals and VMSpc.

cheers

Art Renda
Documentation Central
Silverleaf Electronics
(888) 741-0259