User manual

Chapter 2 Command System RIGOL
MSO7000/DS7000 Programming Guide 2-79
:LA:ACTive
Syntax
:LA:ACTive {<digital>|NONE}
:LA:ACTive?
Description
Sets or queries the current active channel or channel group.
Parameter
Name
Type
Range
Default
<digital>
Discrete
{D0|D1|D2|D3|D4|D5|D6|D7|
D8|D9|D10|D11|D12|D13|D14|D15|NONE}
——
Remarks
 The parameter <digital> can be any of the digital channels (D0-D15). The
channel label and waveform of the selected channel are displayed in red.
 When you send the parameter NONE, it means that no channel/channel group is
selected.
 Only the currently enabled digital channel can be selected. Please refer to
the :LA:DIGital<n>:DISPlay command or the :LA:DISPlay command to enable the
desired channel.
Return
Format
The query returns the current active channel (D0, D1, ...D15) or NONE.
Example
:LA:ACTive D3 /*Sets the current active channel to D3.*/
:LA:ACTive? /*The query returns D3.*/
:LA:AUTOsort
Syntax
:LA:AUTOsort <n>
Description
Sets the auto sorting mode for the waveforms of the currently selected channels on the
screen.
Parameter
Name
Type
Range
Default
<n>
Discrete
{0|1}
1
Remarks
 <n> = 0: the waveforms on the screen are D0-D15 in sequence from top to
bottom.
 <n> = 1: the waveforms on the screen are D15-D0 in sequence from top to
bottom.
:LA:DELete
Syntax
:LA:DELete <group>
Description
Cancels the group setting for the 16 digital channels, or cancels the group settings for
the channel groups (GROUP1-GROUP4).
Parameter
Name
Type
Range
Default
<group>
Discrete
{GROUP1|GROUP2|GROUP3|GROUP4}
——
Remarks
This command only performs the canceling operation for digital channels or
user-defined channel group that have been group set.