Tektronix MSO56 Programmer's Manual

xx

5SeriesMSO

MSO54, MSO56, MSO58, MSO58LP

ZZZ

Programmer Manual

*P077130502*

077-1305-02

5SeriesMSO

MSO54, MSO56, MSO58, MSO58LP

ZZZ

Programmer Manual

xx

www.tek.com

077-1305-02

or suppliers, and are protected by national copyright laws and international treaty provisions.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication

supersedes that in all previously published material. Speciﬁcations and price change privileges reserved.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

FlexChannel, FastFrame, OpenChoic e, iView, Pinpoint, RT-Eye, TekVPI, FastAcq, and e*Scope are registered

trademarks of Tektronx, Inc.

TekSecure is a trademark of Tektronix, Inc.

5 Series MSO Programmer documentation. 077-1305-02 Released January 16, 2018.

Contacting Tektronix

Tektronix, Inc.

14150 SW Karl Braun Drive

P.O. Box 500

Beaverton, OR 97077

USA

For product information, sales, service, and technical support:

In North America, call 1-800-833-9200.

Worldwide, visit www.tek.com to ﬁ nd contacts in your area.

Table of Contents

Preface .............................................................................................................. iii

Getting Started .................................................................................................... 1-1

Setting Up Remote Communications Hardware ......................................................... 1-1

Ethernet .................................................................................................. 1-1

USB....................................................................................................... 1-2

Setting Up Remote Communications Software ................................. .. .. .. .. .. ............... 1-3

Using VISA.............................................................................................. 1-3

Using the LXI Web Page and e*Scope ............................................................... 1-4

Using a Socket Server .................................................................................. 1-5

Documentation .......................................................................................... 1-7

Dynamic programmatic interface .......................................................................... 1-7

Implicit activation ........................................................................................... 1-7

Creating, deleting, and listing dynamic instances ........................................................ 1-8

Command Syntax................................................................................................. 2-1

Command and Query Structure ............................................................................ 2-1

Clearing the oscilloscope ................................................................................... 2-3

Command Entry.............................................................................................. 2-3

Constructed Mnemonics .................................................................................... 2-5

Argument Types.............................................................................................. 2-7

Command groups............................................................................................... 2-11

Acquisition command group ............................................................................. 2-11

AFG Command Group .................................................................................... 2-12

Alias command group ..................................................................................... 2-13

Bus command group....................................................................................... 2-14

Calibration command group .............................................................................. 2-19

Cursor command group ................................................................................... 2-20

Digital command group .................................................................................. 2-26

Display control command group ......................................................................... 2-28

DVM Command Group ................................................................................... 2-31

Ethernet Command Group................................................................................ 2-31

File system command group.............................................................................. 2-33

Horizontal command group............................................................................... 2-35

Math command group ..................................................................................... 2-37

Measurement command group ........................................................................... 2-39

Miscellaneous command group .......................................................................... 2-53

Plot command group ...................................................................................... 2-55

Power command group.................................................................................... 2-55

Save and Recall command group ........................................................................ 2-62

Save On command Group ................................................................................ 2-63

MSO54, MSO56, MSO58, MSO58LP Programmer i

Table of Contents

Search and Mark

command group ....................................................................... 2-64

Self Test command group................................................................................. 2-74

Status and Error command group ........................................................................ 2-75

Trigger command group .................................................................................. 2-76

Vertical command group .................................................................................. 2-85

Waveform Transfer command group .................................................................... 2-88

Zoom comman

d group .................................................................................... 2-92

Commands listed in alphabetical order....................................................................... 2-93

Status and Events ................................................................................................. 3-1

Registers ...................................................................................................... 3-1

Queues ........................................................................................................ 3-4

Event Handling Sequence................................................................................... 3-5

Synchro

nization Methods................................................................................... 3-7

Appendix A: Character Set ..................................................................................... A-1

Appendix B: Reserved Words.................................................................................. B-1

Appendix C: Factory Defaults ................................................................................. C-1

Default Setup................................................................................................ C-1

Appendix D: Waveform Transfer (WFMOutpre and CURVe Query) Examples ......................... D-1

Exam

ple 1: Analog Waveform (Channels 1–4) ......................................................... D-1

Example 2: Digital Waveform ............................................................................ D-3

Example 3: Digital with 4 Bytes Per Point and Zoom Off............................................. D-5

Example 4: Digital with 8 Bytes Per Point and Zoom Off............................................. D-8

Example 5: Digital with 4 Bytes Per Point and Zoom On ........................................... D-10

Example 6: Digital with 8 Bytes Per Point and MagniVu On ....................................... D-13

Ex

ample 7: RF Frequency Domain Waveform........................................................ D-15

Appendix E: Search and Trigger Command Sequence Examples.......................................... E-1

Example 1: Single Threshold Edge Search .............................................................. E-1

Example 2: Single Threshold Edge Trigger ............................................................. E-2

Example 3: Dual Threshold Runt Search ................................................................ E-2

Example 4: Single Threshold Logic Search on Three Waveforms.................................... E-3

Glossary

Index

ii MSO54, MSO56, MSO58, MSO58LP Programmer

Preface

This programmer guide provides you with the information required to use

Programmable Interface commands to remotely control your instrument.

The programmer manual is divided into the following major topics:

Getting started. This topic introduces you to the p rogramming information

and p rovides basic information about setting up your instrument for remote

control.

Command syntax. This topic provides an overview of the command syntax

that you use to communicate with the instrument and other general information

about com

mands, such as how commands and queries are constructed, how to

enter commands, constructed mnemonics, and argument types.

Command

groups. This topic contains all the commands listed in functional

groups. Each group consists o f an overview of the commands in that group and

a table that lists all the commands and queries for that group. You can click a

command in the listing to display a detailed description of the command.

Commands listed in alphabetical order. This topic contains all commands

listed in alphabetical order. Command details, syntax, and examples are

provided.

Status and events. This topic discusses the status and event reporting system

for the programming interfaces. This system informs you of certain signiﬁcant

events that occur within the instrument. Topics that are discussed include

reg

isters, queues, event handling sequences, synchronization methods, and

messages that the instrument might return, including error messages.

Ap

pendices. These topics contain miscellaneous information, such as a list

of reserved words, a table of the factory initialization (default) settings, and

interface speciﬁcations that can be helpful when using commands to remotely

control the instrument.

MSO54, MSO56, MSO58, MSO58LP Programmer iii

Preface

iv MSO54, MSO56, MSO58, MSO58LP Programmer

Getting Started

This manual explains the use of commands to remotely control your oscilloscope.

With this information, you can write computer programs to perform functions,

such as setti

ng the front-panel controls, taking m easurements, performing

statistical calculations, and exporting data for use in other programs.

Familiarit

y with the User Manual for your oscilloscope is assumed. You can

download the User Manual from the Tektronix website at www.tek.com.

NOTE. Most examples in this document assume that both HEADer and VERBose

are s et to ON.

SettingUpRemoteCommunicationsHardware

You can remotely control communications between your oscilloscope and a PC

via Ethernet or USB cables.

Ethernet

If you are using Ethernet, start by connecting an appropriate Ethernet c able to the

Ethernet port (RJ-45 connector) on the rear panel of your oscilloscope. This

connects the oscilloscope to a 10BASE-T/100BASE-TX/1000BASE-T local area

network.

MSO54, MSO56, MSO58, MSO58LP Programmer 1-1

Getting Started

To change the Et

hernet settings on your oscilloscope, do the following:

1. Select the Utility drop-down menu.

2. Select the I/O menu.

3. Select the LAN panel.

4. In the menu, if you are on a DHCP Ethernet network that supplies the IP

address automati

cally by a DHCP, tap Auto.

5. In the menu, if you want to supply your own network settings, tap Manual

to set a hard coded TCP/IP address.

USB

If you are using USB, start by connecting the appropriate USB cable to the USB

3.0 super-speed (SS) Device port on the rear panel of your oscilloscope. This

port requires that the cable connected from the port to the host computer meets

the USB 3.0 speciﬁcation for super speed connections. Typically, such cables

should b e 3 feet or shorter in length, but this is determined by the quality of the

cable and, with higher quality cables, this length can be extended. (It is also

dependent upon the drive capability of the host USB port to which the instrument

is connected.) The use of h igh quality short cables is recommended to avoid USB

connection problems.

With USB, the system automatically conﬁgures itself. To verify that the USB is

enabled:

1. Select the Utility drop-down menu.

2. Select the I/O menu.

3. Touch USB Device Port to open the USB Device Port conﬁguration menu.

4. If USB is disabled, tap USB Device Port to enable the USB Device port.

1-2 MSO54, MSO56, MSO58, MSO58LP Programmer

Getting Started

After connecti

on, the host, with appropriate software, can list the oscilloscope as a

USB device with the following parameters: (See Table 1-1.)

Table 1-1: USB Device Parameters

Parameter Value

Manufacturer ID 0x0699 (decimal 1689)

Product ID 0x0522

(You can send the

USBTMC:PRODUCTID:HEXadecimal?

query to rea

d the value)

Serial num

ber

Serial num

ber

Manufact

urer description

“Tektronix”

Interfac

e description

“USBTMC-

USB488”

Setting Up Remote Communications Software

Connect your oscilloscope directly to a computer to let the PC analyze y our data,

collect screen images, or to control the oscilloscope using a program of your own

creation. Three ways to connect your oscilloscope to a computer are through the

VISA drivers, the e*Scope Web-enabled tools, or via a socket server.

Using

VISA

VISA lets you use your MS-Windows computer to acquire data from your

oscilloscope for use in an a nalysis package that runs on your PC, such as

Microsoft Excel, National Instruments LabVIEW, Tektronix OpenChoice Desktop

sof

tware, or your own custom software. You can use a common communications

connection, such as USB or Ethernet, to connect the computer to the oscilloscope.

To s

et up VISA communications between your oscilloscope and a computer:

MSO54, MSO56, MSO58, MSO58LP Programmer 1-3

Getting Started

1. Load the VISA dr

ivers o n your computer. Also, load your application, such

as OpenChoice Desktop. You will ﬁnd the drivers and OpenChoice Desktop

software on the appropriate CD that comes with your oscilloscope or at the

Tektronix software ﬁnder Web page (www.tektronix.com\downloads).

2. Connect the oscilloscope to your c omputer with the appropriate USB or

Ethernet cable. Cycle the power on the oscilloscope.

3. Select the Utility drop-down menu

4. Select I/O menu.

5. If you are u

sing USB, the system sets itself up automatically for you, if

USB is enabled. Check USB DEVICE PORT panel to be s ure that USB is

enabled. If it is not enabled, toggle the On/Off button to On.

6. To use Ethernet, select the LAN panel. Use the controls to adjust your

network settings, as needed. For more information, see the e*Scope setup

information below.

7. If you want to change socket server parameters, select the Socket Server

panel and enter new values through the resulting panel controls.

8. Run your application software on your computer.

Quick Tips

The U

SB 3.0 super-speed (SS) device port is the correct USB port for

computer connectivity. Use the rear- and front-panel USB 2.0 or 3.0 host

ports to connect your oscilloscope to USB ﬂash drives, hard drives, keyboards

or mice. Use the USB Device port to connect your oscilloscope to a PC.

There are both USB 2.0 and 3.0 host ports on the instrument. The device

port is USB 3.0. Printers are not supported on host ports. PictBridge printers

are not supported on the device port.

Using the LXI Web Page

and e*Scope

With e*Scope, you can access your Internet-connected instrument from a web

browser. To set up e*Scope communications between your oscilloscope a nd a

webbrowserrunningonaremotecomputer:

1-4 MSO54, MSO56, MSO58, MSO58LP Programmer

Getting Started

1. Connect the osc

illoscope to your computer network with an appropriate

Ethernet cable.

2. Select the Uti

lity drop-down menu.

3. Select the I/O menu.

4. Select the LAN panel.

5. At the top left of the p anel, there is an indicator light which turns red if the

device detects a fault.

6. Read the network parameters conﬁgured on your oscilloscope.

7. Tap LAN Reset to restore the LAN defaults to your oscilloscope.

8. Tap Test Connection to check if your oscilloscope can ﬁnd an attached

network.

9. Double tap Host Name, Domain Name,orService Name to change the

name of the o scilloscope, the domain name, or the service name using the

pop-up keyboard.

10. Start your browser on your remote computer. In the browser address line,

enter the host name, a dot, and the domain name together. Alternatively, just

enter the IP address of the instrument. Either way, you should then see the

LXI Welcome page on your Web browser on your computer screen.

11. Click “Network Conﬁguration” to view and edit the network conﬁguration

settings.

12. For e*Scope, click the Instrument Control (e*Scope) link on the left side of

the LXI Welcome page. You should then see a new tab (or window) open in

yo

ur browser with e*Scope running.

Using a Socket Server

A socket server provides two-way communication over an Internet Protocol-based

computer network. Yo u can use your oscilloscope’s socket server feature to let

y

our oscilloscope talk to a remote-terminal device or computer.

To set up and use a socket server between your oscilloscope and a remote terminal

or computer:

1. Connect the oscilloscope to your computer network with an appropriate

Ethernet cable.

2. Select the Utility drop-down menu.

3. Select the I/O menu.

4. Tap Socket Server.

5. On the resulting Socket Server p anel, tap the top entry to toggle the Socket

Server On..

MSO54, MSO56, MSO58, MSO58LP Programmer 1-5

Getting Started

6. Choose whether

the protocol should be None or Term inal. A communication

session run by a human at a keyboard typically uses a terminal protocol.

An automated session might handle its own communications without using

such a protocol.

7. If required, change the port number by rotating multipurpose knob a.

8. If required, press OK to set the new port number.

9. After setting u p the socket server parameters, you can n ow have the computer

“talk” to the oscilloscope. If you are running an MS Windows PC, you could

run its default client with its command-like interface. One way to do this is

by typing “

Telnet ” in the Run window. The Telnet window will open on

the PC.

NOTE. On MS Windows 7, y ou must ﬁrst enable Telnet in order for it to work.

10. Start a terminal session between your computer and your oscilloscope b y

typing in an open command with the oscilloscope LAN address and port

#. You can obtain the LAN address by pushing the LAN panel to view the

resulting LAN setting panel. You can obtain the port # by tapping the Socket

Server panel and viewing the Port item.

For example, if the oscilloscope IP address was

123.45.67.89 and the port

# was the default of

4000, you could open a session by writing into the MS

Windows Telnet screen:

open 12 3.45.67.89 4000

The o scilloscope will send a help screen t o the computer when it is done

connecting.

11. You can now type in a standard query, as found in the programmer manual,

such as

*idn?

The Telnet session window will respond by displaying a character string

describing your i nstrument. You can type in more queries and view more

results on this Telnet session window. You can ﬁnd the syntax for relevant

queries and related status codes in other sections of this manual.

NOTE. Do not use the computer’s backspace key during an MS Windows' Telnet

session with the oscilloscope.

Socket Server Terminal Protocol Mode Commands. Following are Tektronix

Instrument Control Terminal Session Control commands:

!t <timeout> : set the response timeout in milliseconds.

!d : send device c lear to the instrument.

1-6 MSO54, MSO56, MSO58, MSO58LP Programmer

Getting Started

!r : read respon

se from instrument.

!h : print this usage info.

NOTE. Comman

ds containing a ? are treated as queries, and the responses are

read automatically.

Documentation

Documenta

tion for your instrument is available for download at www.tek.com.

Dynamic programmatic interface

This prog

rammatic interface is dynamic. This means the instrument will not

recognize certain commands until the objects referenced by those commands

actually exist. For example, commands related to measurements are not

recognized until measurem ents are added. Therefore, the response to a *LRN?

query will not normally include the instrument's complete command set.

The following command groups are n ot available when the instrument is in its

default state:

Measurement

Math

Bus

Sear

ch and Mark

Plot

Adding an ins tance of one of those components will cause all commands

related to that component to be recognized. For example, sending the

ME

ASUrement:ADDNew command adds a measurement at which point the

measurement commands will be recognized. Conversely, once all instances of a

component have been deleted, the commands related to that component will no

longer be recognized.

Implicit activation

When you send a command or query related to a dynamic object (such as

Math1, Bus3, or Meas2) to the instrument and that instance does not yet exist,

the instrument:

creates a default instance with the name you speciﬁed

adds all relevant c ommands and queries to the set of recognized commands

responds to the command or query

MSO54, MSO56, MSO58, MSO58LP Programmer 1-7

Getting Started

Example 1

*RST followed b

y a *LRN? will not return any MATH<x> commands because in

the default state, the instrument does not have any math waveforms. However

querying :MATH:MATH1:DEFinition? will add MATH1 with the default math

expression Ch1 - Ch2. Then the query will return the expected result. Note that if

Ch1 or Ch2 is not active, they will be activated as part of this action. A *LRN

issued after this will return MATH commands in addition to o ther available

commands.

Example 2

*RST followed by :MEASUrement:MEAS3:TYPE? createsameasurement

named MEAS3 and return it's type. Since the default type is Period, you

will get P

eriod as the response. A *LRN issued after this will return all

MEASUrement:MEAS3 commands in addition to other available commands.

Not all c

ommands in these groups start implicit activation. ADDNew, DELete,

and LIST commands do not result in implicit activation.

Creating, deleting, and listing dynamic instances

You can create a new default instance of a dynamic feature by using the ADDNew

command. For example, :MEASUrement:ADDNew "Meas1" will create a new

measurement named Meas1. Meas1 will be a Period measurement since the

default type for measurements is Period. Note that you can change Meas1 type

to any o ther supported type using :MEASUrement:MEAS1:TYPE command.

The D

ELete command deletes the named dynamic instance. For exa mple

:BUS:DELete “B2” will delete a bus named B2 if it exists. You can delete only

one instance at a time. The LIST command returns a list of all dynamic instances

currently in existence. For example, if you have added three measurements named

Meas1, Meas2 and Meas3, :MEASUrement:LIST? returns MEAS1, MEAS2,

MEAS3.

1-8 MSO54, MSO56, MSO58, MSO58LP Programmer

Command Syntax

You can control the operations and functions of the oscilloscope through the

Ethernet port or the USB 3.0 super speed (SS) device port using commands and

queries. The

related topics listed below describe the syntax of these c ommands

and queries. The topics also describe the conventions that the oscilloscope uses

to process them. See the Command Groups topic in the table of contents for a

listing of the commands by command group, or use the index to locate a speciﬁc

command.

Backus-Naur Form

Notation

This documentation describes the commands and queries using Backus-Naur

Form (BNF) notation. Refer to the following table for the symbols that are used.

Table 2-1: Symbols for Backus-Naur Form

Symbol Meaning

<>

Deﬁned element

=

Is deﬁned as

| Exclusive OR

{ } Group; one element is required

[]

Optional; can be omitted

.. .

Previous element(s) may be repeated

Command and Query Structure

Commands consist of set commands and query commands (usually called

commands and queries). Commands modify oscilloscope settings or tell the

oscilloscope to perform a speciﬁc action. Queries cause the oscilloscope to return

data and status information.

Most commands have both a set form and a query form. The query form of the

command differs from the set form by its question mark at the end. For example,

the set command ACQuire:MODe has a query form ACQuire:MODe?.Notall

commands have both a set and a query form. Some commands have set only and

some have query only.

Messages

A command message is a command or query name followed by any information

the oscilloscope needs to execute the command or query. Command messages

may contain ﬁve element types, deﬁned in the following table.

MSO54, MSO56, MSO58, MSO58LP Programmer 2-1

Command Syntax

Table 2-2: Comm

and Message Elements

Symbol Meaning

This is the basic command name. If the header ends with a question

mark, the command is a query. The header may begin with a colon

(:) characte

r. If the command is concatenated with other commands,

the beginning colon is required. Never u se the beginning colon with

command headers beginning with a star (*).

This is a header subfunction. Some command headers have only one

mnemonic. I

f a command header has multiple mnemonics, a colon (:)

character always separates them from each other.

<Argument

>

This is a qu

antity, quality, restriction, or limit associated with the header.

Some commands have no arguments w hile others have multiple

arguments. A <space> separates arguments from the header. A

<comma> se

parates arguments from each other.

<Comma> A single c

omma is used between arguments of multiple-argument

commands. Optionally, there may be white space characters before

and after the comma.

<Space>

A white space character is used between a command header and the

related argument. Optionally, a white space may consist of m ultiple

white sp

ace characters.

Commands

Comman

ds cause the oscilloscope to perform a speciﬁc function or change one of

the settings. Commands have the structure:

[:]<H

eader>[<Space><Argument>[<C omma> <Argument>]...]

A command header consists of one or more mnemonics arranged in a hierarchical

or tr

ee structure. The ﬁrst mnemonic is the base or root of the tree and each

subsequent mnemonic is a level or branch off the previous one. Commands at a

higher level in the tree may affect those at a lower level. The leading colon (:)

always returns you to the base of the command tree.

2-2 MSO54, MSO56, MSO58, MSO58LP Programmer

Command Syntax

Queries

Queries cause t

he oscilloscope to return status or setting information. Queries

have the structure:

[:]<Header>

[:]<Header>[<Space><Argument > [<Comma><Argument>]...]

You can specify a query command at any level within the command tree unless

otherwise noted. These branch queries return information about all the mnemonics

below the speciﬁed branch or level.

Headers

Use the HEADer command to control whether the oscilloscope returns headers as

part of the query response. If header is on, the query response returns command

headers, then formats itself as a valid set command. When header is off, the

response includes only the values. This may make it easier to parse and extract the

information from the response. The table below shows the difference in responses.

Table 2-3: Comparison of Header Off and Header On Responses

Query Header Off Header On

TIME?

"14:30:00" :TIME “14:30:00”

ACQuire:NUMAVg?

100

:ACQUIRE:NUMAVG 100

Clearing the oscilloscope

You can clear the Output Queue and reset the oscilloscope to accept a new

command or query by using the selected Device Clear (DCL) function.

Command Entry

The following rules apply when entering commands:

You can enter commands in upper or lower case.

You can prece de any command with white space characters. White space

characters include any combination of the ASCII control characters 00 through

09 and 0B through 20 hexadecimal (0 through 9 and 11 through 32 decimal).

The oscilloscope ignores commands consisting of any combination of white

space characters and line feeds.

MSO54, MSO56, MSO58, MSO58LP Programmer 2-3

Command Syntax

Abbreviating

You can abbrevi

ate many oscilloscope commands. Each command in this

documentation shows the minimum acceptable abbreviations in capitals. For

example, you can enter the command

ACQuire:NUMAvg simply as ACQ:NUMA

or acq:numa.

Abbreviation rules may change over time as new oscilloscope models are

introduced. Thus, for the most robust code, use the full spelling.

If you use the HEADer command to have command headers included as part

of query responses, you can further control whether the returned headers are

abbreviated o r are full-length with the

VERBose command.

Concatenating

You can concatenate any combination of set commands and queries using a

semicolon (;). The oscilloscope executes concatenated commands in the order

received.

When concatenating commands and queries, you must follow these rules:

1. Separate completely different headers by a semicolon and by the beginning

colon on all commands except the ﬁrst one. For example, the commands

TRIGger:MODe NORMal and ACQuir e:NUMAVg 8, can be concatenated

into the following single command:

TRIGger:MODe NORMal;:ACQuire:NUMAVg 8

2. If concatenated commands have headers that differ by only the last mnemonic,

you can abbreviate the second command and eliminate the beginning colon.

For example, you can concatenate the commands

ACQuire:MODe ENVelope

and ACQuire:NUMAVg 8 into a single command:

ACQuire:MODe ENVelope; NUMAVg 8

The longer version works equally well:

ACQuire:MODe ENVelope;:ACQuire:NUMAVg 8

3. Never precede a star (*) command with a colon:

ACQuire:STATE 1;*OPC

Any commands that follow will be processed as if the star command was

not there so the commands,

ACQuire:MODe ENVel

ope;*OPC;NUMAVg 8

will set the acquisition mode to envelope and set the number of acquisitions

for averaging to 8.

4. When you concatenate queries, the responses to all the que ries are

concatenated into a single response message. For example, if the display

graticule is set to Full and the display style is set to dotsonly, the concatenated

query

DISplay:GRAticule?;STYle? will return the following.

If the header is on:

DISPLAY:GRATICULE FULL;:DISPLAY:STY LE DOTSONLY

2-4 MSO54, MSO56, MSO58, MSO58LP Programmer

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