Paolo,
I am not a expert on the ADAM-6000 series from Advantech. But here are some of the options I think you have. Advantech most probably has a driver(dlls) for the modules. Once you configure your modules through a configuration utility, you can use the LabVIEW 'Call Library Function' to make direct calls to that driver and be able to communicate with the ADAM-6000. I think if you are a LV beginner, this could take quite some effort to figure-out the driver calls.
If the modules communicate via TCP/IP, FTP or UDP, You can use the LabVIEW Internet toolkit to communicate with it.
A better option could be to set up a OPC Server for the ADAM-6000 and use the simple datasocket client examples to communicate with it. A easy solution could be to get a N
I distributed I/O hardware- FieldPoint, system(http://sine.ni.com/apps/we/nioc.vp?cid=1206〈=US). With the FieldPoint driver installed you can select from the huge library of FieldPoint LabVIEW shipping examples and be able to get your application up and running in a very short time.
Regards,
Pravin