Fluke CombiScope PM3370B Bedienungsanleitung

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SCPI Users Manual

02/- Nov-1998

TRADEMARKS

Microsoft, and Microsoft QuickBASIC are trademarks of Microsoft Corporation.

IBM is a registered trademark of International Business Machines Corporation.

CombiScopeis a trademark of Fluke Corporation.

PCIIA is a trademark of National Instruments Corporation.

HPGL is a trademark of Hewlett-Packard Company.

any form without written permission of the copyright owner.

Printed in the Netherlands

III

CONTENTS Page

1 ABOUT THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1 What this Manual Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

2 GETTING STARTED WITH SCPI PROGRAMMING . . 2-1

2.1 Preparations for SCPI Programming . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1.1 System setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1.2 Programming environment . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.2 Initializing the CombiScope Instrument . . . . . . . . . . . . . . . . . . . . 2-4

2.2.1 How to reset the CombiScope instrument . . . . . . . . . . . . . . 2-4

2.2.2 How to identify the CombiScope instrument . . . . . . . . . . . . 2-4

2.2.3 How to switch between digital and analog mode . . . . . . . . . 2-4

2.3 Error Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

2.4 Acquiring Traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

2.4.1 How to acquire a single shot trace . . . . . . . . . . . . . . . . . . . . 2-7

2.4.2 How to acquire repetitive traces . . . . . . . . . . . . . . . . . . . . . . 2-8

2.5 Measuring Signal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

2.5.1 How to make a single shot measurement . . . . . . . . . . . . . 2-10

2.5.2 How to make repeated measurements . . . . . . . . . . . . . . . 2-10

3 USING THE COMBISCOPE INSTRUMENTS . . . . . . . . . 3-1

3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2 Fundamental Programming Concepts . . . . . . . . . . . . . . . . . . . . . 3-3

3.2.1 Measurement instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

3.2.2 Single function programming using the instrument model . . 3-5

3.2.3 Instrument setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

3.2.4 Front panel simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

3.3 Measuring Signal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

3.3.1 The MEASure? query . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

3.3.2 Benefits of using parameters . . . . . . . . . . . . . . . . . . . . . . . . 3-9

3.3.3 Waveform measurements . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

3.3.4 Customizing settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

3.3.5 Multiple measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

3.3.6 Multiple characteristics from a single acquisition. . . . . . . . 3-15

3.3.7 Trigger control via GPIB . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

3.3.8 Fetching characteristics from memory traces . . . . . . . . . . 3-17

3.4 Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

3.4.1 Acquisition control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

3.4.1.1 Triggering

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

3.4.1.2 Video triggering

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

3.4.1.3 The trigger modes

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

3.4.1.4 Pre- and post-triggering

. . . . . . . . . . . . . . . . . . . . . . . . 3-27

3.4.1.5 External triggering

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

3.4.2 Reading trace acquisitions . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

3.4.2.1 Single-shot acquisition

. . . . . . . . . . . . . . . . . . . . . . . . . 3-30

3.4.2.2 Repetitive acquisitions

. . . . . . . . . . . . . . . . . . . . . . . . . 3-30

3.4.3 Conversion of trace data . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

3.4.3.1 Conversion of 8-bit samples to integer

. . . . . . . . . . . . . 3-32

3.4.3.2 Conversion of 16-bit samples to integer

. . . . . . . . . . . . 3-33

3.4.3.3 Conversion to voltage values

. . . . . . . . . . . . . . . . . . . . 3-34

3.5 Averaging Acquisition Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

3.6 Channel Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

3.7 Signal Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

3.7.1 AC/DC/ground coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

3.7.2 Input filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

3.7.3 Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

3.7.4 Input polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

3.7.5 Vertical range and offset . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

3.7.6 Autoranging attenuators . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41

3.8 Time Base Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

3.8.1 Number of samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

3.8.2 Time base speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

3.8.3 Real time acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43

3.8.4 Autoranging time base . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

3.9 Post Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

3.9.1 How to do post processing . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

3.9.1.1 Select the source for the post processing function.

. . . 3-45

3.9.1.2 Specify the settings of the post processing function.

. . 3-46

3.9.1.3 Enable the post processing function.

. . . . . . . . . . . . . . 3-46

3.9.1.4 Check the result of the post processing function.

. . . . . 3-47

3.9.2 Mathematical calculations . . . . . . . . . . . . . . . . . . . . . . . . . 3-48

3.9.3 Differentiating and integrating traces . . . . . . . . . . . . . . . . . 3-48

3.9.4 Frequency domain transformations . . . . . . . . . . . . . . . . . . 3-49

3.9.5 Histogram functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55

3.9.6 Frequency filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55

3.10 Trace Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56

3.10.1 Trace formatting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-57

3.10.2 Copying traces to memory . . . . . . . . . . . . . . . . . . . . . . . . . 3-58

3.10.3 Writing data to trace memory . . . . . . . . . . . . . . . . . . . . . . . 3-59

3.10.4 Reading data from trace memory . . . . . . . . . . . . . . . . . . . . 3-60

3.11 Screen/Display Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-61

3.11.1 Brightness control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-61

3.11.2 Display functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-61

3.11.2.1 Readout of measurement data

. . . . . . . . . . . . . . . . . . . 3-62

3.11.2.2 Display of user-defined text

. . . . . . . . . . . . . . . . . . . . . 3-65

3.11.2.3 Selection of softkey menus

. . . . . . . . . . . . . . . . . . . . . . 3-65

3.12 Print/Plot Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-66

3.13 Real-Time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68

3.14 Auto Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68

3.15 Status Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-70

3.15.1 Status data for the CombiScope instruments . . . . . . . . . . . 3-70

3.15.1.1 Operation status data

. . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

3.15.1.2 Questionable status data

. . . . . . . . . . . . . . . . . . . . . . . 3-72

3.15.2 How to reset the status data . . . . . . . . . . . . . . . . . . . . . . . 3-73

3.15.3 How to enable status reporting . . . . . . . . . . . . . . . . . . . . . 3-74

3.15.3.1 Program example using the status byte (STB)

. . . . . . . 3-74

3.15.3.2 Program example using a service request (SRQ)

. . . . 3-75

3.15.4 How to report errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-76

3.15.4.1 Error-reporting routine

. . . . . . . . . . . . . . . . . . . . . . . . . 3-76

3.15.4.2 Error-reporting using the SRQ mechanism

. . . . . . . . . 3-77

3.16 Saving/Restoring Instrument Setups . . . . . . . . . . . . . . . . . . . . . 3-78

3.16.1 How to restore initial settings . . . . . . . . . . . . . . . . . . . . . . . 3-78

3.16.2 How to save/restore a setup via instrument memory . . . . . 3-78

3.16.3 How to save/restore a setup via the GPIB controller . . . . . 3-78

3.17 Front Panel Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-79

3.17.1 How to simulate the pressing of a front panel key . . . . . . . 3-79

3.17.2 How to simulate the operation of a softkey menu . . . . . . . 3-80

3.18 Functions not Directly Programmable . . . . . . . . . . . . . . . . . . . . 3-81

4 COMMAND REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1 Notation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1.1 Syntax specification notations . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1.2 Data types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

4.2 Command Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

4.3 Command Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

A APPLICATION PROGRAM EXAMPLES . . . . . . . . . . . . . A-1

A.1 Measuring Signal Characteristics . . . . . . . . . . . . . . . . . . . . . . . A-2

A.1.1 Making automatic measurements . . . . . . . . . . . . . . . . . . . A-2

A.1.2 Making programmed measurements . . . . . . . . . . . . . . . . A-4

A.1.3 Reading measurement values . . . . . . . . . . . . . . . . . . . . . A-5

A.2 Acquiring Waveform Traces . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

A.3 Saving/Recalling Instrument Setups . . . . . . . . . . . . . . . . . . . . A-6

A.3.1 Save/recall settings to/from internal memory . . . . . . . . . . A-6

A.3.2 Save/recall settings to/from computer disk memory . . . . . A-7

A.4 Making a Hardcopy of the Screen . . . . . . . . . . . . . . . . . . . . . . . A-9

A.5 Pass/Fail Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

A.5.1 Saving a pass/fail test setup . . . . . . . . . . . . . . . . . . . . . . A-10

A.5.2 Restoring a pass/fail test setup . . . . . . . . . . . . . . . . . . . . A-11

A.5.3 Running a pass/fail test . . . . . . . . . . . . . . . . . . . . . . . . . . A-12

VII

B CROSS REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B.1 Cross Reference Front Panel Keys / Commands . . . . . . . . . . B-1

B.2 Cross Reference Softkey Menus / Commands . . . . . . . . . . . . B-3

B.2.1 ACQUIRE menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

B.2.2 CURSORS menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

B.2.3 DISPLAY menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

B.2.4 MATHPLUS MATH menu . . . . . . . . . . . . . . . . . . . . . . . . . B-6

B.2.5 MEASURE menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9

B.2.6 DTB (DEL’D TB) menu . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9

B.2.7 SAVE/RECALL menu . . . . . . . . . . . . . . . . . . . . . . . . . . . B-10

B.2.8 SETUPS menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-10

B.2.9 TB MODE menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-11

B.2.10 TRIGGER menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12

B.2.11 UTILITY menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-14

B.2.12 VERTICAL menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-16

B.3 Cross Reference Functions / Commands . . . . . . . . . . . . . . . B-17

C MANUAL CONVENTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

C.1 Abbreviations Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

C.2 Glossary of Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

C.3 List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

C.4 List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

C.5 Documents Referenced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6

D STANDARDS INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . D-1

D.1 SCPI Conformance Information . . . . . . . . . . . . . . . . . . . . . . . . D-1

D.2 List of Implemented IEEE-488.2 Syntactical Elements . . . . . . D-2

E SUMMARY OF SYSTEM SETTINGS . . . . . . . . . . . . . . . . . E-1

ABOUT THIS MANUAL 1 - 1

1 ABOUT THIS MANUAL

The SCPI Programming Manual for the CombiScopeinstruments describes

how to program your CombiScopeinstrument via the IEEE bus using SCPI

commands.

1.1 What this Manual Contains

A complete table of contents is given at the beginning of the manual.

Chapter 1 ABOUT THIS MANUAL

Explains what the SCPI programming manual for the CombiScopes

instruments contains.

Chapter 2 GETTING STARTED WITH SCPI PROGRAMMING

TellsyouhowtogetstartedquicklywithyourCombiScopeinstrument.

You can execute the program examples per (sub)section or from the

beginning until the end.

Chapter 3 USING THE COMBISCOPE INSTRUMENTS

Explains how SCPI works for your CombiScope instrument from

the functional point of view. Section 3.1 is an introduction and

section 3.2 explains the fundamental programming concepts. The

other sections and subsections represent the functional use of your

CombiScope instrument.

Chapter 4 COMMAND REFERENCE

Is a complete alphabetical reference of all implemented SCPI

commands. In the beginning a command summary is given to

provide you with a quick reference.

1 - 2 ABOUT THIS MANUAL

Appendix A APPLICATION PROGRAM EXAMPLES

Appendix A describes some application program examples. The

application programs are supplied on floppy.

Appendix B CROSS REFERENCES

Appendix B gives cross references between SCPI commands and

front panel keys, softkey menu options, and instrument functions.

Appendix C MANUAL CONVENTIONS

Appendix C explains which abbreviations and symbols are used in

the manual. It also gives a list of the tables, figures, and documents

referenced.

Appendix D STANDARDS INFORMATION

Appendix D gives information regarding SCPI and IEEE-488.2

standards.

Appendix E SUMMARY OF SYSTEM SETTINGS

Appendix E lists the system settings per functional group (node),

plus the applicable instrument settings per node.

A full alphabetical index is given at the end of the manual.

GETTING STARTED WITH SCPI PROGRAMMING 2 - 1

2 GETTING STARTED WITH SCPI

PROGRAMMING

2.1 Preparations for SCPI Programming

To program your CombiScope instrument, you need a system setup and a

programming environment. Various program examples (refer to PROGRAM

EXAMPLE:) are given in the following sections. These program examples can be

executed one at a time or chained together for a complete tutorial. The program

examples are based on the system and programming environment as described

below.

Note: All PROGRAM EXAMPLE's in this chapter are supplied on floppy under

the file name EXGETSTA.BAS. They are chained together in order of

appearance.

2.1.1 System setup

•The CombiScope instrument contains a factory-installed IEEE option.

•A PC is used as controller. In the PC an IEEE-488.2 interface (GPIB) board

must be installed to turn the PC into a GPIB controller. The GPIB controller

must be connected to the CombiScope instrument via an IEEE cable.

Note: The program examples throughout this manual have been executed

on an IBM-compatible PC with the GPIB interface board and

software of the product PM2201/03 installed. The PM2201 board is

equivalent to the PCIIA board from National Instruments.

2.1.2 Programming environment

•MS-QuickBASIC is used as the programming language.

•A number of standard IEEE-488.2 drivers are used to control the CombiScope

instrument via the GPIB. These drivers must be included in the application

program. Therefore, the first statement of an application program must be as

follows:

REM $INCLUDE: ’<path>QBDECL.BAS’

Note: The program examples throughout this manual have been executed

using the IEEE-488.2 drivers and the device handler GPIB.COM of

the product PM2201/03.

Andere Handbücher für CombiScope PM3370B

Dieses Handbuch passt für folgende Modelle

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