TEXIO DCS-2000E SERIES, DCS-2204E, DCS-2202E Programming Manual
PROGRAMMING MANUAL
DIGITAL STORAGE OSCILLOSCOPE
DCS-2000E SERIES
B71-0461-01
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Contents
USING THE PRODUCT SAFELY.............................................................Ⅰ-Ⅴ
1. INTERFACE OVERVIEW ................................................. 1
1-1. Front Panel Overview ........................................................ 1
1-2. Interface Configuration ...................................................... 2
2. COMMAND OVERVIEW .................................................. 9
2-1. Command Syntax .............................................................. 9
3. COMMAND DETAILS..................................................... 10
3-1. Common Commands ......................................................... 11
3-2. Acquisition Commands ...................................................... 16
3-3. Autoscale Commands ....................................................... 21
3-4. Vertical Commands ........................................................... 22
3-5. Math Commands ............................................................... 26
3-6. Cursor Commands ............................................................ 33
3-7. Display Commands ................................ ........................... 41
3-8. Hardcopy Commands ........................................................ 44
3-9. Measure Commands ......................................................... 47
3-10. Measurement Commands ................................................ 68
3-11. Reference Commands ..................................................... 73
3-12. Run Command ................................................................ 75
3-13. Timebase Commands ...................................................... 76
3-14. Trigger Commands ......................................................... 78
3-15. System Commands ....................................................... 109
3-16. Save/Recall Commands ................................................ 110
3-17. Ethernet Commands ..................................................... 113
3-18. Time Commands ........................................................... 113
3-19. Bus Decode Commands ................................................ 114
3-20. Mark Commands ........................................................... 126
3-21. Search Commands ........................................................ 127
3-22. Label Commands ................................ .......................... 154
3-23. Segment Commands ..................................................... 158
3-24. DVM Commands ........................................................... 164
3-25. Go_NoGo Commands ................................................... 166
3-26. Data Logging Commands .............................................. 171
3-27. Remote DiskCommands ................................................ 173
4. APPENDX ................................................................ ....175
4-1. Error messages .............................................................. 175
1
1. INTERFACE OVERVIEW
This manual describes how to use the remote command functionality and
lists the command details. The Overview chapter describes how to
configure the USB remote control interface and Ethernet interface.
1-1. Front Panel Overview
VARIABLE
POSITION
HORIZONTAL
POSITION
POSITION
POSITION
POSITION
VERTICAL
MATH
REF
BUS
TRIGGER
LEVEL
PUSH TO
ZERO
PUSH TO
ZERO
PUSH TO
ZERO
PUSH TO
ZERO
PUSH TO
ZERO
PUSH TO
ZERO
SCALE
POWER
CH1 CH2 CH3 CH4
2V
1MW16pF
Digital Storage Oscilloscope
200 MHz 1 GS/s
Visual Persistence Oscilloscope
LCD
Variable knob
and Select key
Autoset, Run/Stop, Single
and Default settings
CH1~CH4
Trigger
controls
Function
keys
USB Host port, Probe
Compensation terminals
Power
button
Hardcopy key
Option key
Math, Reference
and Bus keys
Bottom
menu
keys
Horizontal
controls
Menu key
Vertical
controls
Side menu keys
2
1-2. Interface Configuration
1-2-1. Configure USB Interface
USB Configuration
PC side connector
Type A, host
DCS-2000E side
connector
Type B, device
Speed
1.1/2.0 (high speed)
USB Class
USB-CDC
OS
USB Driver
Windows7(32bit/64bit) or higher
TEXIO_CDC*.inf
Panel Operation
1. Press the Utility key.
Utility
2. Press I/O from the bottom menu.
3. Press USB Device Port from the side
menu and select Computer.
4. Connect the USB cable to the rear
panel device port.
5. When the PC asks for the USB driver or ‘Unknown
device’ listed in Device Manager, install TEXIOCDC*.inf attached CD.
6. If the computer can not recognize the new hardware
due to the security, please go to update the driver
from the "Other devices" in the Device Manager.
Note
You must have administrator account to install driver.
1-2-2. Configure the Ethernet Interface
Ethernet
Configuration
MAC Address
Domain Name
Instrument Name
DNS IP Address
User Password
Gateway IP Address
Instrument IP Address
Subnet Mask
Background
The Ethernet interface is used for remote control using a
socket server connection.
Panel Operation
1. Connect the Ethernet cable to the LAN
port on the rear panel.
2. Press the Utility key.
Utility
3. Press I/O from the bottom menu.
3
4. Press Ethernet from the side menu.
5. Set DHCP/BOOTP to On or Off from
the side menu.
Note
IP addresses will automatically be assigned with
DHCP/BOOTP set to on. For Static IP Addresses,
DHCP/BOOTP should be set to off.
6. Use the Up and Down arrows on the
side menu to navigate to each Ethernet
configuration item.
Items
MAC Address, Instrument Name, User
Password, Instrument IP Address,
Domain Name, DNS IP Address,
Gateway IP Address, Subnet Mask
7. Use the Variable knob to highlight a
character and use the Select key to
choose a character.
VARIABLE
Select
Press Backspace to delete a
character.
4
Press Save Now to save the
configuration. Complete will be
displayed when successful.
1-2-3. Configure Socket Server
The DCS-2000E supports socket server functionality for direct and full
duplex communication with a client PC or device over LAN. By default, the
Socket Server is off.
Configure Socket
Server
1. Configure the IP address for the DCS2000E.
2. Press the Utility key.
Utility
3. Press I/O from the bottom menu.
4. Press Socket Server from the side
menu.
5. Press Select Port and choose the port
number with the Variable knob.
Range
1024~65535
6. Press Set Port to confirm the port
number.
7. The Current Port icon will update to the
new port number.
8. Press Server and turn the socket
server On.
1-2-4. USB Functionality Check
Terminal
Application (USB)
Invoke the terminal application such as PuTTY or
RealTerm. For USB, set the COM port, baud rate, stop
bit, data bit, and parity accordingly.
To check the COM port number and associated port
settings, see the Device Manager in the PC. For
Windows:
Control panel → Hardware and Sound→ Device
Manager
5
Example: Configuring RealTerm for RS-232C
communication.
Functionality
Check
Key in this query command via the terminal application.
*idn?
This should return the Manufacturer, Model number,
Serial number, and Firmware version in the following
format.
TEXIO, DCS-2204E, PXXXXXX, V1.00
1-2-5. Socket Server Functionality Check
NI Measurement
and Automation
Explorer
To test the socket server functionality, National
Instruments MAX (Measurement and Automation
Explorer) can be used. This program is available on the
NI website, www.ni.com.
The following display and operation will differ depending
on the version of MAX, Please use in accordance with
the display for your MAX.
Operation
1. Configure the IP address for the DCS2000E.
2. Configure the socket port.
3. Start the NI Measurement and
Automation Explorer (MAX)
program. Using Windows, press:
Start>All Programs>National
Instruments>Measurement & Automation
6
4. From the Configuration panel access;
My System>Devices and Interfaces>Network
Devices
5. Right click Network Devices and select Create
New Visa TCP/IP Resource…
4
5
6. Select Manual Entry of Raw Socket from the
popup window.
7. Click Next.
6
7
8. Enter the IP address and socket port number of
the DCS-2000E.
9. Click Validate.
10. A popup will appear to tell you if a VISA socket
session was successfully created.
11. Click Next.
7
10
11
8
9
12. Choose an alias for the socket connection if you
like.
13. Click Finish to finish the configuration.
12
13
14. The DCS-2000E will now appear under
Network Devices in the Configuration Panel.
Functionality
Check
15. Click the Open Visa Test Panel to send a
remote command to the DCS-2000E.
14
15
8
16. Click on the Configuration icon.
17. Select the I/O Settings tab.
18. Mark the Enable Termination Character
checkbox. Make sure the termination character
is a line feed (/n, value: xA).
19. Click Apply Changes.
16
17
18
19
20. Click the Input/Output icon.
21. Make sure *IDN? query is selected in the Select
or Enter Command drop box.
22. Click on Query.
23. The manufacturer, model number, serial
number and firmware version will be displayed
in the buffer. For example:
TEXIO,DCS-2202E,PXXXXXX,V1.00
20
21
22
23
9
2. COMMAND OVERVIEW
The Command overview chapter lists all DCS-2000E commands
in functional order as well as alphabetical order. The command
syntax section shows you the basic syntax rules you have to apply
when using commands.
2-1. Command Syntax
Compatible
standard
USB CDC_ACM compatible
SCPI, 1994 (partially compatible)
Command forms
Commands and queries have two different forms, long
and short. The command syntax is written with the short
form of the command in capitals and the remainder (long
form) in lower case.
:TIMebase:SCALe?
Short
Long
Short
The commands can be written in capitals or lower-case,
just so long as the short or long forms are complete. An
incomplete command will not be recognized. Below are
examples of correctly written commands.
LONG
:TIMebase:SCALe?
:TIMEBASE:SCALE?
:timebase:scale?
SHORT
:TIM:SCAL?
:TIM:SCAL?
Command format
:TIMebase:SCALe <NR3>LF
1 2 3 4
1: command header
2: single space
3: parameter
4: message terminator
Parameter
Type
Description
Example
<Boolean>
boolean logic
0, 1
<NR1>
Integers
0, 1, 2, 3
<NR2>
floating point
0.1, 3.14, 8.5
<NR3>
floating point with
an exponent
4.5e-1, 8.25e+1
<NRf>
any of NR1, 2, 3
1, 1.5, 4.5e-1
Message
terminator
LF
line feed code
Note
Commands are non-case sensitive.
10
3. COMMAND DETAILS
The Command details chapter shows the detailed syntax, equivalent
panel operation, and example for each command.
3-1. Common Commands ......................................................... 11
3-2. Acquisition Commands ...................................................... 16
3-3. Autoscale Commands ....................................................... 21
3-4. Vertical Commands ........................................................... 22
3-5. Math Commands ............................................................... 26
3-6. Cursor Commands ............................................................ 33
3-7. Display Commands ........................................................... 41
3-8. Hardcopy Commands ........................................................ 44
3-9. Measure Commands ......................................................... 47
3-10. Measurement Commands ................................................ 68
3-11. Reference Commands ..................................................... 73
3-12. Run Command ................................................................ 75
3-13. Timebase Commands ...................................................... 76
3-14. Trigger Commands ......................................................... 78
3-15. System Commands ....................................................... 109
3-16. Save/Recall Commands ................................................ 110
3-17. Ethernet Commands ..................................................... 113
3-18. Time Commands ........................................................... 113
3-19. Bus Decode Commands ................................................ 114
3-20. Mark Commands ........................................................... 126
3-21. Search Commands ........................................................ 127
3-22. Label Commands .......................................................... 154
3-23. Segment Commands ..................................................... 158
3-24. DVM Commands ........................................................... 164
3-25. Go_NoGo Commands ................................................... 166
3-26. Data Logging Commands .............................................. 171
3-27. Remote DiskCommands ................................................ 173
11
3-1. Common Commands
3-1-1. *IDN? ....................................................................................................... 11
3-1-2. *LRN? ...................................................................................................... 11
3-1-3. *SAV ................................................................ ................................ ........ 11
3-1-4. *RCL ................................ ................................................................ ........ 12
3-1-5. *RST ................................ ................................................................ ........ 12
3-1-6. *CLS ........................................................................................................ 12
3-1-7. *ESE ................................................................ ................................ ........ 12
3-1-8. *ESR ........................................................................................................ 13
3-1-9. *OPC ....................................................................................................... 13
3-1-10. *SRE ...................................................................................................... 14
3-1-11. *STB ...................................................................................................... 15
3-1-1. *IDN?
Query
Description
Returns the manufacturer, model, serial number and
version number of the unit.
Syntax
*IDN?
Example
*IDN?
TEXIO, DCS-2204E,P930116,V0.82b
3-1-2. *LRN?
Query
Description
Returns the oscilloscope settings as a data string.
Syntax
*LRN?
Example
*LRN?
:DISPlay:WAVEform VECTOR;PERSistence 2.400E01;INTensity:WAVEform 50;INTensity:GRATicule
50;GRATicule FULL;:CHANnel CH1:DISPlay ON;BWLimit
・
・
・
1.000e+00;PROBe:TYPe VOLTAGE;SCALe 5.000E-
02;IMPedance 1E+6;EXPand GROUND;:CHANnel OFF
3-1-3. *SAV
Set
Description
Saves the current panel settings to the selected
memory number.
Syntax
*SAV {1 | 2 | 3 |…. | 20}
Example
*SAV 1
Saves the current panel settings to Set 1
12
3-1-4. *RCL
Set
Description
Recalls a set of panel settings.
Syntax
*RCL {1 | 2 | 3 |…. | 20}
Example
*RCL 1
Recalls the selected setup from Set 1.
3-1-5. *RST
Set
Description
Resets the DCS-2000E (recalls the default panel
settings).
Syntax
*RST
3-1-6. *CLS
Set
Description
Clears the error queue.
Syntax
*CLS
3-1-7. *ESE
Set
Query
Description
Sets or queries the Standard Event Status Enable
register.
Syntax
Query Syntax
*ESE <NR1>
*ESE?
Return parameter
<NR1>
0~255
Bit Weight
Bit#
Weight
Event
Description
0 1 OPC
Operation Complete Bit
1 2 RQC
Not used
2 4 QYE
Query Error
3 8 DDE
Device Error
4
16
EXE
Execution Error
5
32
CME
Command Error
6
64
URQ
User Request
7
128
PON
Power On
Example
*ESE?
>4
Indicates that there is a query error.
13
3-1-8. *ESR
Query
Description
Queries the Standard Event Status (Event) register.
The Event Status register is cleared after it is read.
Query Syntax
*ESR?
Return parameter
<NR1>
0~255
Bit Weight
Bit#
Weight
Event
Description
0 1 OPC
Operation Complete Bit
1 2 RQC
Not used
2 4 QYE
Query Error
3 8 DDE
Device Error
4
16
EXE
Execution Error
5
32
CME
Command Error
6
64
URQ
User Request
7
128
PON
Power On
Example
*ESR?
>4
Indicates that there is a query error.
3-1-9. *OPC
Set
Query
Description
The *OPC command sets the OPC bit (bit0) of the
Standard Event Status Register when all current
commands have been processed.
The *OPC? Query returns 1 when all the outstanding
commands have completed.
Syntax
Query Syntax
*OPC
*OPC?
Return parameter
1
Returns 1 when all the outstanding
commands have completed.
14
3-1-10. *SRE
Set
Query
Description
Sets or queries the Service Request Enable register.
The Service Request Enable register determines which
registers of the Status Byte register are able to
generate service requests.
Syntax
Query Syntax
*SRE <NR1>
*SRE?
Parameter/
Return parameter
<NR1>
0~255
Bit Weight
Bit#
Weight
Event
Description
0 1
Not used
1 2
Not used
2 4
Not used
3 8
Not used
4
16
MAV
Message Available Bit
5
32
ESB
Event Status Bit
6
64
MSS
Master Summary Bit
6
64
RQS
Request Service Bit
7
128
Not used
Example
*SRE?
>48
Indicates that the MAVB and ESB bit are both set.
15
3-1-11. *STB
Query
Description
Queries the bit sum of the Status Byte register with
MSS (Master summary Status) replacing the RQS bit
(bit 6).
Query Syntax
*STB?
Return parameter
<NR1>
0 ~ 255
Bit Weight
Bit#
Weight
Event
Description
0 1
Not used
1 2
Not used
2 4
Not used
3 8
Not used
4
16
MAV
Message Available Bit
5
32
ESB
Event Status Bit
6
64
MSS
Master Summary Bit
6
64
RQS
Request Service Bit
7
128
Not used
Example
*STB?
>16
Indicates that the MAV bit is set.
16
3-2. Acquisition Commands
3-2-1. :ACQuire:AVERage.................................................................................. 16
3-2-2. :ACQuire:MODe ....................................................................................... 16
3-2-3. :ACQuire<X>:MEMory? ........................................................................... 17
3-2-4. :ACQuire:FILTer:SOURce ........................................................................ 18
3-2-5. :ACQuire:FILTer ....................................................................................... 19
3-2-6. :ACQuire:FILTer:FREQuency .................................................................. 19
3-2-7. :ACQuire:FILTer:TRACking ...................................................................... 19
3-2-8. :ACQuire<X>:STATe? .............................................................................. 20
3-2-9. :ACQuire:RECOrdlength .......................................................................... 20
3-2-10. :HEADer................................................................................................. 21
3-2-1. :ACQuire:AVERage
Set
Query
Description
Selects or returns the number of waveform acquisitions
that are averaged in the average acquisition mode.
Syntax
:ACQuire:AVERage {<NR1>| ?}
Related Commands
:ACQuire:MODe
Parameter
<NR1>
2, 4, 8 ,16, 32, 64, 128, 256
Note
Before using this command, select the average
acquisition mode. See the example below.
Example
:ACQuire:MODe AVERage
:ACQuire:AVERage 2
Selects the average acquisition mode, and sets the
average number to 2.
3-2-2. :ACQuire:MODe
Set
Query
Description
Selects or returns the acquisition mode.
Syntax
:ACQuire:MODe {SAMPle | PDETect | AVERage | ?}
Related Commands
:ACQuire:AVERage
Parameter
SAMPle
Sample mode sampling
PDETect
Peak detect sampling
AVERage
Average sampling mode
Example
:ACQuire:MODe PDETect
Sets the sampling mode to peak detection.
17
3-2-3. :ACQuire<X>:MEMory?
Query
Description
Returns the data in acquisition memory for the
selected channel as a header + raw data.
Syntax
:ACQuire<X>:MEMory?
Related Commands
ACQuire:RECOrdlength
:HEADer
Parameter
<X>
Channel number (1 to 4)
Return parameter
Returns acquisition settings followed by raw waveform
block data.
<string>
Returns the acquisition settings for the selected
channel.
Format:
parameter(1),setting(1);parameter(2),setting(2)…para
meter(n),setting(n);Waveform Data;
<waveform block data>
Header followed by the raw waveform data.
Format:
Header: The header (in ASCII) encodes the number of
bytes for the header followed by the number of data
points in bytes for the raw data.
#42000
Header identifier
Indicates the number
of characters that will
encode the number of
data points (ie. 2000
= 4 characters) after
which the raw data
will follow.
Indicates the number
of bytes that follow
(for the raw data).
ASCII
Raw Data:
Each two bytes (in hex) encodes the vertical data of a
data point. The data is signed hex data (2’s
complement, -32768 ~ 32767).
Waveform Raw Data Example:
Header raw data……….
Hex:
23 34 32 30 30 30 00 1C 00 1B 00 1A 00 1A 00 1B
18
………..
ASCII/Decimal:
#42000 28 27 26 26 27…….
The actual value of a data point can be calculated with
the following formula:
(Decimal value of hex data/AD Factor) * vertical scale.
Note: AD Factor is fixed as 25. The vertical scale is
returned with the acquisition settings that precede the
raw data.
For example if the raw data for a point is 001C (=28
decimal) then,
(28/25) x 0.5 = 0.56V
Example
:ACQuire1:MEMory?
Format,2.0E;Memory Length,10000;IntpDistance,0;
Trigger Address,4999;Trigger Level,1.160E+01;
Source,CH1;Vertical Units,V;Vertical Units
Div,0;Vertical Units Extend Div,15;Label,ACK ;Probe
Type,0;Probe Ratio,1.000e+01;Vertical
Scale,5.000e+00;Vertical Position,-
1.100e+01;Horizontal Units,S;Horizontal Scale,5.000E-
04;Horizontal Position,0.000E+00; Horizontal
Mode,Main;SincET Mode,Real Time;Sampling
Period,5.000e-07;Horizontal Old Scale,5.000E04;Horizontal Old Position,0.000E+00;
Firmware,V0.99b8;Time,02-Oct-14 17:00:43;
Waveform Data; #520000…follows waveform block
data in hex…………………..
Note:
On Windows 10, data loss may occur due to
insufficient CPU power. Adjust the transfer timing with
the ":USBDelay" command and use as fast a PC as
possible.
3-2-4. :ACQuire:FILTer:SOURce
Set
Query
Description
Returns the source of the filter.
Syntax
:ACQuire:FILTer:SOURce {CH1|CH2|CH3|CH4|?}
Parameter/
Return parameter
CH1 ~ CH4
Source channel
Example
:ACQuire:FILTer:SOURce?
CH1
Sets the filter source to CH1.
19
3-2-5. :ACQuire:FILTer
Set
Query
Description
Turns the filter on/off or queries its status.
Syntax
:ACQuire:FILTer {OFF | ON | ?}
Parameter/Return
parameter
OFF
Turns the digital filter off.
ON
Turns the digital filter on.
Example
:ACQuire:FILTer OFF
Turns the digital filter off.
3-2-6. :ACQuire:FILTer:FREQuency
Set
Query
Description
Sets or queries the filter frequency.
Syntax
:ACQuire:FILTer:FREQuency {DEFault|<NRf>|?}
Parameter/ Return
parameter
DEFault
Sets the filter frequency to the default.
<NRf>
Manually sets the filter frequency.
(1Hz ~ 500MHz)
Example
:ACQuire:FILTer:FREQuency 1
Sets the filter frequency to 1Hz.
3-2-7. :ACQuire:FILTer:TRACking
Set
Query
Description
Turns filter tracking on/off or queries its state.
Syntax
:ACQuire:FILTer:TRACking {ON|OFF|?}
Parameter/ Return
parameter
OFF
Tracking off
ON
Tracking on
Example
:ACQuire:FILTer:TRACking ON
Turns filter tracking on.
20
3-2-8. :ACQuire<X>:STATe?
Query
Description
Returns the status of waveform data.
Syntax
:ACQuire<X>:STATe?
Parameter
<X>
Channel number (1 to 4)
Return parameter
0
Raw data is not ready
1 Raw data is ready
Example
:ACQuire1:STATe?
0
Returns 0. The channel 1’s raw data is not ready.
Note: If the oscilloscope changes the acquisition status
from STOP to RUN, the status will be reset as zero.
3-2-9. :ACQuire:RECOrdlength
Set
Query
Description
Sets or queries the record length. Please see the user
manual for full details.
Syntax
:ACQuire:RECOrdlength {<NRf>| ?}
Parameter/Return
parameter
<NRf>
Record length. Settable record length: (1e+3 |
1e+4 | 1e+5 | 1e+6 | 1e+7)
Example
:ACQuire:RECOrdlength 1e+3
Sets the record length to 1000 points.
21
3-2-10. :HEADer
Set
Query
Description
Configures whether the :ACQuire:MEM
or :ACQuire:LMEM return data will contain header
information or not. It is set to ON by default.
Syntax
:HEADer {OFF | ON | ?}
Related Commands
:ACQuire<X>:MEMory?
Parameter
<X>
Channel number (1 to 4)
ON
Add header information.
OFF
Don’t add header information.
Return parameter
Returns the configuration (ON, OFF) for the selected
channel.
Example
:HEADer ON
3-3. Autoscale Commands
3-3-1. :AUTOSet
Set
Description
Runs the Autoset function to automatically configure
the horizontal scale, vertical scale, and trigger
according to the input signal.
Syntax
:AUTOSet
3-3-2. :AUTORSET:MODe
Set
Query
Description
Sets the Autoset mode or queries its state.
Syntax
:AUTORSET:MODe {FITScreen | ACPriority | ?}
Related Commands
:AUTOSet
Parameter/Return
parameter
FITScreen
Fit Screen mode
ACPriority
AC priority mode
Example
:AUTORSET?
FITSCREEN
22
3-4. Vertical Commands
3-4-1. :CHANnel<X>:BWLimit ................................................................ ............ 22
3-4-2. :CHANnel<X>:COUPling .......................................................................... 22
3-4-3. :CHANnel<X>:DESKew ........................................................................... 23
3-4-4. :CHANnel<X>:DISPlay ............................................................................. 23
3-4-5. :CHANnel<X>:EXPand ............................................................................ 23
3-4-6. :CHANnel<X>:IMPedance? ...................................................................... 24
3-4-7. :CHANnel<X>:INVert ............................................................................... 24
3-4-8. :CHANnel<X>:POSition ........................................................................... 24
3-4-9. :CHANnel<X>:PROBe:RATio ................................................................... 25
3-4-10. :CHANnel<X>:PROBe:TYPe ................................................................ .. 25
3-4-11. :CHANnel<X>:SCALe ............................................................................ 25
3-4-1. :CHANnel<X>:BWLimit
Set
Query
Description
Sets or returns the bandwidth limit on/off.
Syntax
:CHANnel<X>:BWLimit {FULL | <NR3> | ?}
Parameter
<X>
Channel 1,2,3,4
FULL
Full bandwidth
<NR3>
Sets the bandwidth limit to a pre-defined
bandwidth.
100E+6: 100MHz
20E+6: 20MHz
Return Parameter
<NR3>
Returns the bandwidth.
Full
Full bandwidth
Example
:CHANnel1:BWLimit 2.000E+07
Sets the channel 1 bandwidth 20MHz
3-4-2. :CHANnel<X>:COUPling
Set
Query
Description
Selects or returns the coupling mode.
Syntax
CHANnel<X>:COUPling {AC | DC | GND | ?}
Parameter
<X>
Channel 1,2,3,4
AC
AC coupling
DC
DC coupling
GND
Ground coupling
Return parameter
Returns the coupling mode.
Example
:CHANnel1:COUPling DC
Sets the coupling to DC for Channel 1.
23
3-4-3. :CHANnel<X>:DESKew
Set
Query
Description
Sets the deskew time in seconds.
Syntax
:CHANnel<X>:DESKew { <NR3> | ?}
Parameter
<X>
Channel 1,2,3,4
<NR3>
Deskew time:
-5.00E -11 to 5.00E-11
-50ns to 50 ns.
Return parameter
<NR3>
Returns the deskew time.
Example
:CHANnel1:DESKew 1.300E-9
Sets the deskew time to 1.3 nano seconds.
3-4-4. :CHANnel<X>:DISPlay
Set
Query
Description
Turns a channel on/off or returns its status.
Syntax
:CHANnel<X>:DISPlay {OFF | ON | ?}
Parameter
<X>
Channel 1,2,3,4
OFF
Channel off
ON
Channel on
Return Parameter
ON
Channel is on.
OFF
Channel is off
Example
:CHANnel1:DISPlay ON
Turns on Channel 1
3-4-5. :CHANnel<X>:EXPand
Set
Query
Description
Sets Expand By Ground or Expand By Center for a
channel or queries its status.
Syntax
:CHANnel<X>:EXPand {GND | CENTer | ?}
Parameter
<X>
Channel 1,2,3,4
GND
Ground
CENTer
Center
Return parameter
GND
Expand By Ground
CENTER
Expand By Center
Example
:CHANnel1:EXPand GND
Sets Channel 1 to Expand By Ground.
24
3-4-6. :CHANnel<X>:IMPedance?
Query
Description
Returns the impedance of the oscilloscope.
Syntax
:CHANnel<X>:IMPedance?
Parameter
<x>
Channel
1/2/3/4
CH1/2/3/4
Return parameter
<NR3>
Returns the impedance value.
Example
:CHANnel1:IMPedance?
1.000000E+06
The impedance is 1M ohms.
3-4-7. :CHANnel<X>:INVert
Set
Query
Description
Inverts a channel or returns its status.
Syntax
:CHANnel<X>:INVert {OFF | ON | ?}
Parameter
<X>
Channel 1, 2, 3, 4
OFF
Invert off
ON
Invert on
Return parameter
ON
Invert on
OFF
Invert off
Example
:CHANnel1:INVert ON
Inverts Channel 1
3-4-8. :CHANnel<X>:POSition
Set
Query
Description
Sets or returns the position level for a channel.
Note
The vertical position will only be set to closest allowed
value. The position level range depends on the vertical
scale.
The scale must first be set before the position can be
set.
Syntax
:CHANnel<X>:POSition { <NRf> | ?}
Parameter
<X>
Channel 1, 2, 3, 4
<NRf>
Position. Range depends on the vertical scale.
Return parameter
<NR3>
Returns the position value.
Example 1
:CHANnel1:POSition 2.4E–3
Sets the Channel 1 position to 2.4mV/mA
Example 2
:CHANnel1:POSition?
2.4E-3
Returns 2.4mV as the vertical position.
25
3-4-9. :CHANnel<X>:PROBe:RATio
Set
Query
Description
Sets or returns the probe attenuation factor.
Syntax
:CHANnel<X>:PROBe:RATio { <NRf> | ?}
Related Commands
:CHANnel<X>:PROBe:TYPe
Parameter
<X>
Channel 1, 2, 3, 4
<NRf>
Probe attenuation factor.
Return parameter
<NR3>
Returns the probe factor.
Example
:CHANnel1:PROBe:RATio 1.00E+0
Sets the Channel 1 probe attenuation factor to 1x
3-4-10. :CHANnel<X>:PROBe:TYPe
Set
Query
Description
Sets or returns the probe type (voltage/current).
Syntax
:CHANnel<X>:PROBe:TYPe { VOLTage | CURRent
| ?}
Related Commands
:CHANnel<X>:PROBe:RATio
Parameter
<X>
Channel 1, 2, 3, 4
VOLTage
Voltage
CURRent
Current
Return parameter
Returns the probe type.
Example
:CHANnel1:PROBe:TYPe VOLTage
Sets the Channel 1 probe type to voltage.
3-4-11. :CHANnel<X>:SCALe
Set
Query
Description
Sets or returns the vertical scale. The scale depends
on the probe attenuation factor.
Note the probe attenuation factor should be set before
the scale.
Syntax
:CHANnel<X>:SCALe { <NRf> | ?}
Parameter
<X>
Channel 1, 2, 3, 4
<NRf>
Vertical scale:
2e–3 to 1e+1
2mV to 10V (Probe x1)
Return parameter
<NR3>
Returns the vertical scale in volts or amps.
Example
:CHANnel1:SCAle 2.00E–2
Sets the Channel 1 vertical scale to 20mV/div
26
3-5. Math Commands
3-5-1. :MATH:DISP ............................................................................................ 26
3-5-2. :MATH:TYPe ............................................................................................ 26
3-5-3. :MATH:DUAL:SOURce<X> ...................................................................... 27
3-5-4. :MATH:DUAL:OPERator .......................................................................... 27
3-5-5. :MATH:DUAL:POSition ................................................................ ............ 27
3-5-6. :MATH:DUAL:SCALe ............................................................................... 28
3-5-7. :MATH:FFT:SOURce ............................................................................... 28
3-5-8. :MATH:FFT:MAG ..................................................................................... 28
3-5-9. :MATH:FFT:WINDow ............................................................................... 29
3-5-10. :MATH:FFT:POSition ............................................................................. 29
3-5-11. :MATH:FFT:SCALe ................................................................................ 29
3-5-12. :MATH:FFT:HORizontal:SCALe ............................................................. 30
3-5-13. :MATH:FFT:HORizontal:POSition .......................................................... 30
3-5-14. :MATH:DEFine ....................................................................................... 31
3-5-15. :MATHVAR? .......................................................................................... 31
3-5-16. :MATHVAR:VAR<X> .............................................................................. 32
3-5-17. :MATH:ADVanced:POSition ................................................................ ... 32
3-5-18. :MATH:ADVanced:SCALe ...................................................................... 32
3-5-1. :MATH:DISP
Set
Query
Description
Turns the math display on or off on the screen.
Syntax
:MATH:DISP {OFF|ON|?}
Parameter/ Return
parameter
OFF
Math is not displayed on screen
ON
Math is displayed on screen
Example
:MATH:DISP OFF
Math is off.
3-5-2. :MATH:TYPe
Set
Query
Description
Queries or sets the Math type to FFT, Advanced Math
or to dual channel math operations
Syntax
:MATH:TYPe { DUAL | ADVanced | FFT | ? }
Related Commands
:MATH:DISP
Parameter
DUAL
Dual channel operations
ADVanced
Advanced math operations
FFT
FFT operations
Return parameter
Returns the math type.
Example
:MATH:TYPe DUAL
Sets the Math type to dual channel math operation.
27
3-5-3. :MATH:DUAL:SOURce<X>
Set
Query
Description
Sets the dual math source for source 1 or 2.
Syntax
:MATH:DUAL:SOURce<X> { CH1 | CH2 | CH3 | CH4 |
REF1 | REF2 | REF3 | REF4 | ? }
Parameter
<X>
Source number 1 or 2
CH1~4
Channel 1 to 4
REF1~4
Reference waveforms 1 to 4
Return parameter
Returns the source for the source 1 or 2.
Example
:MATH:DUAL:SOURce1 CH1
Sets source1 as channel 1.
3-5-4. :MATH:DUAL:OPERator
Set
Query
Description
Sets the math operator for dual math operations.
Syntax
:MATH:DUAL:OPERator {PLUS | MINUS | MUL| DIV|?}
Parameter
PLUS
+ operator
MINUS
- operator
MUL
operator
DIV
÷ operator
Return parameter
Returns operator type.
Example
:MATH:DUAL:OPERator PLUS
Sets the math operator as plus (+).
3-5-5. :MATH:DUAL:POSition
Set
Query
Description
Sets the vertical position of the displayed math result
expressed by division.
Syntax
:MATH:DUAL:POSition {<NRf> | ? }
Parameter
<NRf>
Vertical position
Depends on the vertical scale (Unit/Div)
Return parameter
<NR3>
Returns the vertical position.
Example
:MATH:DUAL:POSition 1.0E+0
Sets the vertical position to 1.00 unit/div.
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