At work i have this device which Aquires Data Via other devices...

But befor it can do this i need to tell the Data Aquisition System how many devices its looking for and set up differnt parameters for these devices.

Currently we use a laptop and a very un-user friendly program and communicate via a Serial Line.

Im not a very experienced programmer but what i need to know is how would i go about finding out how the existing software communicates with the Device so that i can attempt to rewrite the software