RIGOL  Chapter 2 Command System 
2-10    MSO1000Z/DS1000Z Programming Guide 
:CHANnel<n>:COUPling 
:CHANnel<n>:COUPling <coupling> 
:CHANnel<n>:COUPling? 
Set or query the coupling mode of the specified channel. 
  AC: the DC components of the signal under test are blocked. 
  DC: the DC and AC components of the signal under test can both pass the channel. 
  GND: the DC and AC components of the signal under test are both blocked. 
The query returns AC, DC, or GND. 
:CHANnel1:COUPling AC /*Select the AC coupling mode*/ 
:CHANnel1:COUPling?            /*The query returns AC*/ 
 
 
:CHANnel<n>:DISPlay 
:CHANnel<n>:DISPlay <bool> 
:CHANnel<n>:DISPlay? 
Enable or disable the specified channel or query the status of the specified channel. 
CH1: 1|ON 
CH2 to CH4: 0|OFF 
The query returns 1 or 0. 
:CHANnel1:DISPlay ON /*Enable CH1*/ 
:CHANnel1:DISPlay? /*The query returns 1*/