Rigol DS1204B Programming Manual page 55

Return Format:
The query returns 1 or 0, respectively indicates ON or OFF.
Example:
:CHANnel2:FILTer□OFF
:CHANnel2:FILTer?
9. :CHANnel<n>:MEMoryDepth?
Command Format:
:CHANnel<n>:MEMoryDepth?
Function:
This command is query the memory depth on channel x
There are three instances:
1).Alternate trigger: 8192
2).Slow scan or ROLL: 0~8192
3).Others: 8192
NOTE: In Slow scan mode: In the event of the horizontal timebase is set as
50ms/div or more slowly, the instrument will turn into Slow scan mode. Under
this circumstance, the oscilloscope will gather the datum form the left side of
the trigger point and then continue gathering the waves form the right side after
triggering. If use Slow scan mode to observe the low frequency signal, you are
suggested to set the couple mode of channel as DC .
10. :CHANnel<n>:UNITs
Command Format:
:CHANnel<n>:UNITs <units>
Function:
The command sets the unit as VOLTs (V), AMPeres (A), WATTs (W) or UNKNown.
The <n> may be 1, 2, 3 or 4.
Query Format:
:CHANnel<n>:UNITs?
Return Format:
The query returns VOLTs or AMPeres, WATTs, UNKNown.
Programming Guide for DS1000B Series
Set the digital filter of channel 2 off.
Return 0.
RIGOL
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