User manual

Chapter 2 Command System RIGOL
MSO5000 Programming Guide 2-43
:CHANnel<n>:UNITs
Syntax
:CHANnel<n>:UNITs <units>
:CHANnel<n>:UNITs?
Description
Sets or queries the amplitude display unit of the specified analog channel.
Parameter
Name
Type
Range
Default
<n>
Discrete
{1|2|3|4}
1
<units>
Discrete
{VOLTage|WATT|AMPere|UNKNown}
VOLTage
Return
Format
The query returns VOLT, WATT, AMP, or UNKN.
Example
:CHANnel1:UNITs VOLTage /*Sets the amplitude display unit of CH1 to VOLTage.*/
:CHANnel1:UNITs? /*The query returns VOLT.*/
:CHANnel<n>:VERNier
Syntax
:CHANnel<n>:VERNier <bool>
:CHANnel<n>:VERNier?
Description
Enables or disables the fine adjustment of the vertical scale of the specified analog
channel; or queries the on/off status of the fine adjustment function of the vertical scale
of the specified analog channel.
Parameter
Name
Type
Range
Default
<n>
Discrete
{1|2|3|4}
1
<bool>
Bool
{{1|ON}|{0|OFF}}
0|OFF
Remarks
By default, the fine adjustment is Off. At this time, you can set the vertical scale at 1-2-5
step, i.g. 10 mV, 20 mV, 50 mV, 100 mV…100 V. When the fine adjustment is enabled, you
can further adjust the vertical scale within a relatively smaller range to improve vertical
resolution. If the amplitude of the input waveform is a little bit greater than the full scale
under the current scale and the amplitude would be a little bit lower if the next scale is
used, fine adjustment can be used to improve the amplitude of waveform display to view
signal details.
Return
Format
The query returns 1 or 0.
Example
:CHANnel1:VERNier ON /*Enables the fine adjustment of the vertical scale of CH1.*/
:CHANnel1:VERNier? /*The query returns 1.*/