Rigol MSO2000A Series Programming Manual page 291

2 Command System
:TRIGger:DURATion:TYPe
Syntax
:TRIGger:DURATion:TYPe <pa_ch1>[,<pa_ch2>[,<pa_d0>...[,<pa_d15>]]]
:TRIGger:DURATion:TYPe?
Description
Set or query the pattern of each channel in duration trigger.
Parameter
Name Type
<pa_ch1> Discrete
<pa_ch2> Discrete
<pa_d0> Discrete
...... ......
<pa_d15> Discrete
Explanation
The patterns consist of 2 analog channels and 16 digital channels.

<pa_ch1> and <pa_ch2> set the patterns of analog channels CH1 and CH2. <pa_d0> to <pa_d15>

set the patterns of digital channels D0 to D15. Users can send 18 parameters to set the pataterns of
all the channels. Users can also omit some parameters to set the patterns of some of the channels
(the pattern states of the channels of which the parameters are omitted remains unchanged), but at
least one parameter (this parameter sets the pattern of CH1) should be sent. When the number of
parameters sent is less than 18, the instrument sets the channels in CH1, CH2 and D0 to D15 order.
No matter whether parameters are omitted, the query command returns the patterns currently set
for all the channels (18).
In the range of the parameter, H represents high level (higher than the threshold level of the

channel). L represents low level (lower than the threshold level of the channel). X denotes that this
channel is ignored (this channel is not used as a part of the pattern. When all the channels in the
pattern are set to X, the oscilloscope will not trigger).
Please distinguish "omit parameter" from "ignore channel". The former means that the parameters

corresponding to some channels are not sent when sending the command and the pattern states of
these channels remain unchanged. The latter means that the channel is set to X when sending the
command and the state of this channel is ignored when the instrument judges the patterns.
Return Format
The query returns the patterns of all the channels.
Example
:TRIGger:DURATion:TYPe L,H
MSO2000A/DS2000A Programming Guide
Range
{H,L,X}
{H,L,X}
{H,L,X}
......
{H,L,X}
/*The query returns L,H,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X,X*/
RIGOL
Default
X
X
X
......
X
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