RIGOL DS1000D - Manual (Page 8)

RIGOL Programming Introduction
Programming Guide for DS1000E, DS1000D Series 1-2
Communication Interfaces
Computers communicate with the oscilloscope by sending and receiving messages
over an I/O port such as an USB or RS-232 port. Commands appear as ASCII
character strings embedded inside the output statements of a “host” language
available on your computer.
Basic operations that you can do with a computer and an oscilloscope
include:

Set up the oscilloscope.
 Make measurements.
 Retrieve data (waveforms or measurements) from the oscilloscope.
Connection:
 USB: connect the oscilloscope with the computer through an USB data cable.
 RS232: connect the oscilloscope with the computer through an RS232 serial port
Cable.