Hi Vlady_1:
ASCII object is a general object designed for using with ANY device that accept commands in ASCII FORMAT and is able to send responses in ASCII FORMAT.
If you want to use it, you should first know what the commands are(How to build a correct question), and how the answer looks like, in order to decode it.
For more references, take a look at:
http://sine.ni.com/apps/we/niepd_web_display.DISPLAY_EPD4?p_guid=B45EACE3DABD56A4E034080020E74861&p_node=DZ52187&p_submitted=N&p_rank=&p_answer=&p_source=External
or
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/a78096bbd72d0d388625681d0056b1be?OpenDocument
regards
JPSS