Rigol DS2000E Series Operating instructions

RIGOL
Programming Guide
DS2000E Series Digital Oscilloscope
Sept. 2017
RIGOL TECHNOLOGIES, INC.

RIGOL
DS2000E Programming Guide I
Guaranty and Declaration
Copyright
©2017 RIGOL TECHNOLOGIES, INC. All Rights Reserved.
Trademark Information
RIGOL is a registered trademark of RIGOL TECHNOLOGIES, INC.
Publication Number
PGA23101-1110
Software Version
00.03.05.SP3
Software upgrade might change or add product features. Please acquire the latest version of the manual
from RIGOL website or contact RIGOL to upgrade the software.
Notices
RIGOL products are covered by P.R.C. and foreign patents, issued and pending.
RIGOL reserves the right to modify or change parts of or all the specifications and pricing policies at
the company’s sole decision.
Information in this publication replaces all previously released materials.
Information in this publication is subject to change without notice.
RIGOL shall not be liable for either incidental or consequential losses in connection with the
furnishing, use, or performance of this manual, as well as any information contained.
Any part of this document is forbidden to be copied, photocopied, or rearranged without prior written
approval of RIGOL.
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ISO9001:2008 standard and the ISO14001:2004 standard. Other international standard conformance
certifications are in progress.
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If you have any problem or requirement when using our products or this manual, please contact RIGOL.
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RIGOL
II DS2000E Programming Guide
Document Overview
This manual provides guidance on how to use the SCPI commands in programming to realize remote
control of RIGOL DS2000E series digital oscilloscope through the remote interface. DS2000E can
communicate with a PC through the USB, LAN, or GPIB (with the USB-GPIB interface converter provided
by RIGOL) interface.
Main Topics in this Manual:
SCPI Overview
Command System
Programming Demos
Content Conventions in this Manual:
The DS2000E series includes the following models. Unless otherwise noted, this manual takes DS2202E as
an example to illustrate the functions and usage of the command system of the DS2000E series.
Model Analog Bandwidth Number of Channels
DS2102E 100 MHz 2
DS2202E 200 MHz 2

Contents RIGOL
DS2000E Programming Guide
III
Contents
Guaranty and Declaration ......................................................................................................... I
Document Overview .................................................................................................................II
1 SCPI Overview.....................................................................................................................1-1
Syntax .....................................................................................................................................1-1
Symbol Description...................................................................................................................1-2
Parameter Type ........................................................................................................................1-2
Command Abbreviation.............................................................................................................1-3
2 Command System................................................................................................................2-1
:AUToscale...............................................................................................................................2-2
:CLEar......................................................................................................................................2-2
:RUN........................................................................................................................................2-2
:STOP ......................................................................................................................................2-2
:SINGle....................................................................................................................................2-3
:TFORce...................................................................................................................................2-3
:TLHAlf ....................................................................................................................................2-3
IEEE 488.2 Common Commands................................................................................................2-4
*CLS .................................................................................................................................2-4
*ESE .................................................................................................................................2-5
*ESR? ...............................................................................................................................2-6
*IDN? ...............................................................................................................................2-6
*OPC.................................................................................................................................2-7
*RST.................................................................................................................................2-7
*SRE.................................................................................................................................2-8
*STB? ...............................................................................................................................2-9
*TST? ............................................................................................................................. 2-10
:ACQuire Commands............................................................................................................... 2-11
:ACQuire:AVERages.......................................................................................................... 2-11
:ACQuire:MDEPth............................................................................................................. 2-12
:ACQuire:SRATe?.............................................................................................................. 2-12
:ACQuire:TYPE................................................................................................................. 2-13
:ACQuire:AALias............................................................................................................... 2-14
:BUS<n> Commands.............................................................................................................. 2-15
:BUS<n>:MODE .............................................................................................................. 2-15
:BUS<n>:DISPlay............................................................................................................ 2-16
:BUS<n>:FORMat............................................................................................................ 2-16
:BUS<n>:EVENt .............................................................................................................. 2-17
:BUS<n>:EEXPort............................................................................................................ 2-17
:BUS<n>:DATA?.............................................................................................................. 2-18
:BUS<n>:PARallel............................................................................................................ 2-19
:BUS<n>:RS232 (Option)................................................................................................. 2-23

RIGOL Contents
IV DS2000E Programming Guide
:BUS<n>:IIC (Option)......................................................................................................2-31
:BUS<n>:SPI (Option)......................................................................................................2-34
:BUS<n>:CAN (Option) ....................................................................................................2-40
:CALCulate Commands ............................................................................................................2-44
:CALCulate:MODE.............................................................................................................2-44
:CALCulate:ADD ...............................................................................................................2-45
:CALCulate:SUB................................................................................................................2-48
:CALCulate:MULTiply.........................................................................................................2-51
:CALCulate:DIVision..........................................................................................................2-54
:CALCulate:FFT ................................................................................................................2-57
:CALCulate:LOGic .............................................................................................................2-65
:CALCulate:ADVanced.......................................................................................................2-69
:CALibrate Commands.............................................................................................................2-73
:CALibrate:DATE?.............................................................................................................2-73
:CALibrate:STARt..............................................................................................................2-73
:CALibrate:TIME? .............................................................................................................2-74
:CALibrate:QUIT...............................................................................................................2-74
:CHANnel<n> Commands........................................................................................................2-75
:CHANnel<n>:BWLimit.....................................................................................................2-75
:CHANnel<n>:COUPling ...................................................................................................2-76
:CHANnel<n>:DISPlay......................................................................................................2-76
:CHANnel<n>:INVert........................................................................................................2-77
:CHANnel<n>:IMPedance.................................................................................................2-77
:CHANnel<n>:OFFSet.......................................................................................................2-78
:CHANnel<n>:SCALe........................................................................................................2-79
:CHANnel<n>:PROBe.......................................................................................................2-80
:CHANnel<n>:UNITs........................................................................................................2-80
:CHANnel<n>:VERNier .....................................................................................................2-81
:CHANnel<n>:TCAL .........................................................................................................2-82
:CURSor Commands................................................................................................................2-83
:CURSor:MODE ................................................................................................................2-83
:CURSor:MANual ..............................................................................................................2-84
:CURSor:TRACk................................................................................................................2-92
:DISPlay Commands................................................................................................................2-97
:DISPlay:CLEar.................................................................................................................2-97
:DISPlay:TYPE..................................................................................................................2-98
:DISPlay:GRADing:TIME ...................................................................................................2-99
:DISPlay:WBRightness......................................................................................................2-99
:DISPlay:GRID ...............................................................................................................2-100
:DISPlay:GBRightness.....................................................................................................2-100
:DISPlay:MPERsistence ...................................................................................................2-101
:DISPlay:DATA? .............................................................................................................2-102
:FUNCtion Commands ...........................................................................................................2-104
:FUNCtion:WRMode........................................................................................................2-104

Contents RIGOL
DS2000E Programming Guide
V
:FUNCtion:WRECord....................................................................................................... 2-105
:FUNCtion:WREPlay........................................................................................................ 2-108
:FUNCtion:WANalyze...................................................................................................... 2-113
:LAN Commands................................................................................................................... 2-121
:LAN:DHCP.................................................................................................................... 2-121
:LAN:AUToip.................................................................................................................. 2-122
:LAN:GATeway............................................................................................................... 2-123
:LAN:DNS...................................................................................................................... 2-123
:LAN:MAC? .................................................................................................................... 2-124
:LAN:MANual ................................................................................................................. 2-124
:LAN:INITiate ................................................................................................................ 2-125
:LAN:IPADdress ............................................................................................................. 2-125
:LAN:SMASk .................................................................................................................. 2-126
:LAN:STATus? ................................................................................................................ 2-126
:LAN:VISA?.................................................................................................................... 2-127
:LAN:APPLy.................................................................................................................... 2-127
:MASK Commands ................................................................................................................ 2-128
:MASK:ENABle ............................................................................................................... 2-128
:MASK:SOURce.............................................................................................................. 2-129
:MASK:OPERate............................................................................................................. 2-129
:MASK:MDISplay............................................................................................................ 2-130
:MASK:SOOutput ........................................................................................................... 2-130
:MASK:OUTPut............................................................................................................... 2-131
:MASK:X........................................................................................................................ 2-132
:MASK:Y........................................................................................................................ 2-132
:MASK:CREate ............................................................................................................... 2-132
:MASK:PASSed? ............................................................................................................. 2-133
:MASK:FAILed?.............................................................................................................. 2-133
:MASK:TOTal?................................................................................................................ 2-133
:MASK:RESet ................................................................................................................. 2-134
:MASK:DATA.................................................................................................................. 2-134
:MEASure Commands............................................................................................................ 2-135
:MEASure:SOURce ......................................................................................................... 2-136
:MEASure:COUNter:SOURce ........................................................................................... 2-137
:MEASure:COUNter:VALue? ............................................................................................ 2-137
:MEASure:CLEar............................................................................................................. 2-138
:MEASure:RECover......................................................................................................... 2-138
:MEASure:ADISplay........................................................................................................ 2-139
:MEASure:AMSource....................................................................................................... 2-139
:MEASure:STATistic:DISPlay............................................................................................ 2-140
:MEASure:STATistic:MODE.............................................................................................. 2-140
:MEASure:STATistic:RESet .............................................................................................. 2-141
:MEASure:SETup:TYPE................................................................................................... 2-141
:MEASure:SETup:MAX .................................................................................................... 2-142

RIGOL Contents
VI DS2000E Programming Guide
:MEASure:SETup:MID .....................................................................................................2-142
:MEASure:SETup:MIN .....................................................................................................2-142
:MEASure:SETup:PSA......................................................................................................2-143
:MEASure:SETup:PSB......................................................................................................2-143
:MEASure:SETup:DSA .....................................................................................................2-144
:MEASure:SETup:DSB .....................................................................................................2-144
:MEASure:AREA..............................................................................................................2-145
:MEASure:CREGion:CAX..................................................................................................2-146
:MEASure:CREGion:CBX..................................................................................................2-146
:MEASure:HISTory:DISPlay.............................................................................................2-147
:MEASure:HISTory:DMODe..............................................................................................2-147
:MEASure:FDELay...........................................................................................................2-148
:MEASure:F2RDelay........................................................................................................2-150
:MEASure:FPHase...........................................................................................................2-152
:MEASure:F2RPhase .......................................................................................................2-154
:MEASure:FREQuency.....................................................................................................2-156
:MEASure:FTIMe ............................................................................................................2-158
:MEASure:NDUTy............................................................................................................2-160
:MEASure:NWIDth..........................................................................................................2-162
:MEASure:OVERshoot .....................................................................................................2-164
:MEASure:PDUTy............................................................................................................2-166
:MEASure:PERiod ...........................................................................................................2-168
:MEASure:PREShoot .......................................................................................................2-170
:MEASure:PWIDth ..........................................................................................................2-172
:MEASure:RTIMe............................................................................................................2-174
:MEASure:RDELay ..........................................................................................................2-176
:MEASure:R2FDelay........................................................................................................2-178
:MEASure:RPHase ..........................................................................................................2-180
:MEASure:R2FPhase .......................................................................................................2-182
:MEASure:VAMP .............................................................................................................2-184
:MEASure:VAVG..............................................................................................................2-186
:MEASure:VBASe............................................................................................................2-188
:MEASure:VMAX.............................................................................................................2-190
:MEASure:VMIN..............................................................................................................2-192
:MEASure:VPP................................................................................................................2-194
:MEASure:VRMS.............................................................................................................2-196
:MEASure:PVRMs............................................................................................................2-198
:MEASure:VTOP..............................................................................................................2-200
:MEASure:MARea ...........................................................................................................2-202
:MEASure:MPARea..........................................................................................................2-204
:RECall Commands................................................................................................................2-206
:RECall:SETup................................................................................................................2-206
:RECall:TRACe................................................................................................................2-207
:RECall:WAVeform..........................................................................................................2-207

Contents RIGOL
DS2000E Programming Guide
VII
:REFerence Commands ......................................................................................................... 2-208
:REFerence<n>:CURRent............................................................................................... 2-208
:REFerence<n>:ENABle ................................................................................................. 2-209
:REFerence:COLor.......................................................................................................... 2-209
:REFerence:CURRent?.................................................................................................... 2-210
:REFerence:DISPlay ....................................................................................................... 2-210
:REFerence:RESet.......................................................................................................... 2-210
:REFerence:SAVe ........................................................................................................... 2-211
:REFerence:SOURce....................................................................................................... 2-211
:REFerence:VSCale......................................................................................................... 2-212
:REFerence:VOFFset ...................................................................................................... 2-213
:SAVE Commands................................................................................................................. 2-214
:SAVE:CSV[:STARt]........................................................................................................ 2-215
:SAVE:CSV:FACTors ....................................................................................................... 2-216
:SAVE:CSV:LENGth......................................................................................................... 2-216
:SAVE:FORMat............................................................................................................... 2-217
:SAVE:IMAGe[:STARt].................................................................................................... 2-217
:SAVE:IMAGe:TYPE........................................................................................................ 2-218
:SAVE:IMAGe:FACTors ................................................................................................... 2-218
:SAVE:SETup[:STARt] .................................................................................................... 2-219
:SAVE:TRACe[:STARt].................................................................................................... 2-220
:SAVE:WAVeform[:STARt].............................................................................................. 2-220
:SAVE:REFerence[:STARt] .............................................................................................. 2-221
:SAVE:MTESt[:STARt] .................................................................................................... 2-222
:SYSTem Commands............................................................................................................. 2-223
:SYSTem:AOUTput......................................................................................................... 2-224
:SYSTem:AUToscale........................................................................................................ 2-224
:SYSTem:BEEPer............................................................................................................ 2-225
:SYSTem:DATE............................................................................................................... 2-225
:SYSTem:ERRor[:NEXT]?................................................................................................ 2-226
:SYSTem:EXPand ........................................................................................................... 2-226
:SYSTem:GAMount? ....................................................................................................... 2-227
:SYSTem:GPIB............................................................................................................... 2-227
:SYSTem:KEY:PRESs....................................................................................................... 2-228
:SYSTem:KEY:INCRease.................................................................................................. 2-230
:SYSTem:KEY:DECRease................................................................................................. 2-230
:SYSTem:LANGuage ....................................................................................................... 2-231
:SYSTem:OPTion:INSTall................................................................................................ 2-232
:SYSTem:OPTion:UNINSTall............................................................................................ 2-232
:SYSTem:OPTion:VALid? ................................................................................................ 2-233
:SYSTem:PON................................................................................................................ 2-233
:SYSTem:PSTatus .......................................................................................................... 2-234
:SYSTem:RAMount?........................................................................................................ 2-234
:SYSTem:RESet.............................................................................................................. 2-234

RIGOL Contents
VIII DS2000E Programming Guide
:SYSTem:SSAVer:TIME....................................................................................................2-235
:SYSTem:SETup..............................................................................................................2-235
:SYSTem:TIME...............................................................................................................2-236
:SYSTem:UDEVice ..........................................................................................................2-236
:SYSTem:VERSion?.........................................................................................................2-237
:TIMebase Commands...........................................................................................................2-238
:TIMebase:DELay:ENABle ...............................................................................................2-238
:TIMebase:DELay:OFFSet ...............................................................................................2-239
:TIMebase:DELay:SCALe.................................................................................................2-239
:TIMebase[:MAIN]:OFFSet..............................................................................................2-240
:TIMebase[:MAIN]:SCALe ...............................................................................................2-241
:TIMebase:HREF:MODE ..................................................................................................2-242
:TIMebase:HREF:POSition...............................................................................................2-242
:TIMebase:MODE ...........................................................................................................2-243
:TIMebase:VERNier ........................................................................................................2-243
:TRIGger Commands.............................................................................................................2-244
:TRIGger:COUPling.........................................................................................................2-245
:TRIGger:HOLDoff..........................................................................................................2-245
:TRIGger:MODE .............................................................................................................2-246
:TRIGger:NREJect ..........................................................................................................2-246
:TRIGger:STATus? ..........................................................................................................2-247
:TRIGger:SWEep............................................................................................................2-248
:TRIGger:CAN (Option)...................................................................................................2-249
:TRIGger:DELay (Option)................................................................................................2-254
:TRIGger:DURATion (Option) ..........................................................................................2-257
:TRIGger:EDGe ..............................................................................................................2-261
:TRIGger:IIC..................................................................................................................2-263
:TRIGger:NEDGe (Option)...............................................................................................2-269
:TRIGger:PATTern...........................................................................................................2-272
:TRIGger:PULSe.............................................................................................................2-275
:TRIGger:RS232.............................................................................................................2-279
:TRIGger:RUNT..............................................................................................................2-285
:TRIGger:SHOLd ............................................................................................................2-289
:TRIGger:SLOPe.............................................................................................................2-293
:TRIGger:SPI .................................................................................................................2-298
:TRIGger:TIMeout (Option).............................................................................................2-303
:TRIGger:USB (Option)...................................................................................................2-305
:TRIGger:VIDeo (HDTV Option).......................................................................................2-308
:TRIGger:WINDows (Option)...........................................................................................2-313
:WAVeform Commands..........................................................................................................2-316
:WAVeform:SOURce .......................................................................................................2-317
:WAVeform:MODE ..........................................................................................................2-318
:WAVeform:FORMat........................................................................................................2-319
:WAVeform:POINts.........................................................................................................2-319

Contents RIGOL
DS2000E Programming Guide
IX
:WAVeform:DATA?.......................................................................................................... 2-320
:WAVeform:XINCrement? ............................................................................................... 2-324
:WAVeform:XORigin?...................................................................................................... 2-325
:WAVeform:XREFerence?................................................................................................ 2-325
:WAVeform:YINCrement? ............................................................................................... 2-326
:WAVeform:YORigin?...................................................................................................... 2-326
:WAVeform:YREFerence?................................................................................................ 2-326
:WAVeform:STARt.......................................................................................................... 2-327
:WAVeform:STOP........................................................................................................... 2-328
:WAVeform:PREamble?................................................................................................... 2-329
3 Programming Demos...........................................................................................................3-1
Programming Preparations ........................................................................................................3-2
Excel Programming Demo .........................................................................................................3-3
LabVIEW Programming Demo....................................................................................................3-7
MATLAB Programming Demo................................................................................................... 3-11
Visual Basic 6.0 Programming Demo........................................................................................ 3-13
Visual C++ 6.0 Programming Demo......................................................................................... 3-15

1 SCPI Overview RIGOL
DS2000E Programming Guide 1-1
1SCPI Overview
SCPI (Standard Commands for Programmable Instruments) is a standardized instrument programming
language that is built upon the standard IEEE 488.1 and IEEE 488.2 and conforms to various standards
(such as the floating point operation rule in IEEE 754 standard, ISO 646 7-bit coded character for
information interchange (equivalent to ASCII programming)). The SCPI commands provide a hierarchical
tree structure and consist of multiple subsystems. Each command subsystem consists of a root keyword
and one or more sub-keywords.
The topics of this chapter:
Syntax
Symbol Description
Parameter Type
Command Abbreviation
Syntax
The command string usually starts with ":"; the keywords are separated by ":" and are followed by the
parameter settings available; "?" is added at the end of the command string to indicate query or execute
the corresponding function and then make query (for example, *TST?); the command keywords and the
first parameter are separated by a space.
For example,
:CALCulate:ADVanced:EXPRession <expression>
:CALCulate:ADVanced:EXPRession?
CALCulate is the root keyword of the command. ADVanced and EXPRession are the second-level and
third-level keywords respectively. The command string starts with ":" which is also used to separate the
multiple-level keywords. <expression> represents the parameters available for setting. "?" represents
query. The command keywords :CALCulate:ADVanced:EXPRession and parameter <expression> are
separated by a space.
"," is generally used for separating multiple parameters contained in the same command, for example,
:SYSTem:DATE <year>,<month>,<day>

RIGOL 1 SCPI Overview
1-2 DS2000E Programming Guide
Symbol Description
The following symbols will not be sent with the commands.
1. Braces {}
The parameters enclosed in the braces are optional and are usually separated by the vertical bar "|".
When you use the command, one of the parameters must be selected.
2. Vertical Bar |
The vertical bar is used to separate multiple parameters and one of the parameters must be selected
when you use the command.
3. Square Brackets []
The content in the square brackets can be omitted.
4. Triangle Brackets <>
The parameter enclosed in the triangle brackets must be replaced by an effective value.
Parameter Type
1. Bool
The parameter could be ON, OFF, 1 or 0. For example,
:MEASure:ADISplay <bool>
:MEASure:ADISplay?
Wherein, <bool> can be set to {{1|ON}|{0|OFF}}.
The query returns 1 or 0.
2. Discrete
The parameter could be any of the values listed. For example,
:ACQuire:TYPE <type>
:ACQuire:TYPE?
Wherein, <type> can be set to NORMal|AVERages|PEAK|HRESolution.
The query returns the abbreviations (NORM, AVER, PEAK or HRES).
3. Integer
Unless otherwise noted, the parameter can be any integer within the effective value range. Note that
do not set the parameter to a decimal, otherwise errors will occur.
For example,
:DISPlay:GBRightness <brightness>
:DISPlay:GBRightness?
Wherein, <brightness> can be set to any integer between 0 and 100.
The query returns an integer between 0 and 100.

1 SCPI Overview RIGOL
DS2000E Programming Guide
1-3
4. Real
The parameter can be any real number within the effective value range and this command accepts
decimal and scientific notation parameter input. For example,
:FUNCtion:WREPlay:INTerval <interval>
:FUNCtion:WREPlay:INTerval?
Wherein, <interval> can be set to any real number between 0.0000001 (or 1e-07, namely 100ns) to
10 (or 1e+01, namely 10s).
The query returns a real number in scientific notation.
5. ASCII String
The parameter should be the combinations of ASCII characters. For example,
:CALCulate:ADVanced:EXPRession <expression>
:CALCulate:ADVanced:EXPRession?
Wherein, <expression> can be set to CH1+CH2
The query returns an ASCII string.
Command Abbreviation
All the commands are case-insensitive and you can use any of them. If abbreviation is used, all the capital
English letters and numbers in the command must be written completely. For example,
:CALCulate:ADVanced:VARiable1?
can be abbreviated to
:CALC:ADV:VAR1?

2 Command System RIGOL
DS2000E Programming Guide 2-1
2Command System
This chapter introduces the command subsystems of DS2000E command set.
The topics of this chapter:
:AUToscale
:CLEar
:RUN
:STOP
:SINGle
:TFORce
:TLHAlf
IEEE 488.2 Common Commands
:ACQuire Commands
:BUS<n> Commands
:CALCulate Commands
:CALibrate Commands
:CHANnel<n> Commands
:CURSor Commands
:DISPlay Commands
:FUNCtion Commands
:LAN Commands
:MASK Commands
:MEASure Commands
:RECall Commands
:REFerence Commands
:SAVE Commands
:SYSTem Commands
:TIMebase Commands
:TRIGger Commands
:WAVeform Commands
Note:
1. Unless otherwise noted, the descriptions and parameter ranges in this manual are based on
DS2202E.
2. For parameter setting commands (such as time, frequency and amplitude), the oscilloscope can only
accept numbers and set the parameters using the default units; it cannot recognize the units sent
with the parameters. For the default unit of each parameter, please refer to the description in each
command in the following introductions.

RIGOL 2 Command System
2-2 DS2000E Programming Guide
:AUToscale
Syntax
:AUToscale
Description
Enable the waveform auto setting function. The oscilloscope adjusts the vertical scale, horizontal time
base and trigger mode according to the input signal automatically to realize optimum waveform display.
The function of this command is the same with that of AUTO on the front panel.
Explanation
This command is invalid when the AUTO function is disabled. For the details, please refer
to :SYSTem:AUToscale.
When the current status of the pass/fail function is "Enable Test", this command is not available. For
the details, please refer to :MASK:ENABle.
:CLEar
Syntax
:CLEar
Description
Clear all the waveforms on the screen. New waveforms will still be displayed if the oscilloscope is in RUN
state. The function of this command is the same with that of CLEAR on the front panel.
:RUN
:STOP
Syntax
:RUN
:STOP
Description
The :RUN command starts the oscilloscope and the :STOP command stops the oscilloscope. The functions
of these commands are the same with those of RUN/STOP on the front panel.
Explanation
These commands are invalid when waveform recording or waveform playback is turned on.

2 Command System RIGOL
DS2000E Programming Guide
2-3
:SINGle
Syntax
:SINGle
Description
Set the oscilloscope to single trigger mode.
Explanation
In single trigger mode, the oscilloscope triggers once the trigger conditions are met and then stops.
In single trigger mode, using the :TFORce command can generate a trigger signal forcefully.
You can use the :RUN and :STOP command to set the oscilloscope to Auto trigger mode and STOP
state respectively.
:TFORce
Syntax
:TFORce
Description
Generate a trigger signal forcefully. The function of this command is the same with that of FORCE in the
trigger control area on the front panel.
:TLHAlf
Syntax
:TLHAlf
Description
Set the trigger level to the vertical midpoint of the trigger signal amplitude.

RIGOL 2 Command System
2-4 DS2000E Programming Guide
IEEE 488.2 Common Commands
The IEEE 488.2 standard defines some common commands used for querying the basic information of the
instrument or executing basic operations. These commands usually start with "*" and the keyword of the
command is usually 3-character long.
*CLS
*ESE
*ESR?
*IDN?
*OPC
*RST
*SRE
*STB?
*TST?
*CLS
Syntax
*CLS
Description
Clear all the event registers and clear the error queue.