Agilent Technologies 54754a User manual

Brand: Agilent Technologies

Model: 54754a

Category: Measuring, testing & control

Type: User manual

This manual is also suitable for

Sprinkler 54753a

Agilent 54753A and 54754A

TDR Plug-in Modules

Programmer’s Quick Reference

Notices

No part of this manual may be repro-

duced in any form or by any means

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retrieval or translation into a foreign lan-

guage) without prior agreement and writ-

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Inc. as governed by United States and

international copyright lays.

Manual Part Number

54754-90013

Edition

July 2004

Printed in Malaysia

Agilent Technologies, Inc.

Digital Signal Analysis Division

1400 Fountaingrove Parkway

Santa Rosa, CA 95403, USA

Warranty

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changed, without notice, in future edi-

tions. Further, to the maximum extent

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cable in any technical data.

Safety Notices

CAUTION

Caution denotes a hazard. It calls attention

to a procedure which, if not correctly per-

formed or adhered to, could result in

damage to or destruction of the product.

Do not proceed beyond a caution sign

until the indicated conditions are fully

understood and met.

WARNING

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to a procedure which, if not correctly per-

formed or adhered to, could result in

injury or loss of life. Do not proceed

beyond a warning sign until the indicated

conditions are fully understood and met.

iii

Introduction

54750A/83480A

Mainframes

For controlling 54753A and 54754A TDR plug-in modules that are installed in

a 54750A or 83480A mainframes, refer to the following books:

• This manual, the 54753A and 54754A TDR Plug-in Modules Programmer’s

Quick Reference

• 54753A and 54754A Programmer’s Guide for detailed information.

• 54750A Oscilloscope and 83480A Analyzer Programmer’s Guide for infor-

mation about programming the oscilloscope.

• 54753A and 54754A User’s Guide for general information about the opera-

tion of the TDR plug-in module.

86100-Series

Mainframes

For controlling 54753A and 54754A TDR plug-in modules that are installed in

an 86100-series mainframe, refer to the following books:

• 86100-series programmer’s guide.

• 86100-series online help.

Notational

Conventions

computer type. All characters appearing in computer type are key

words and must be entered exactly as shown.

CAPITAL LETTERS. Capital letters indicate the short form of a command.

The actual command is not case sensitive and can be entered in upper or

lower case.

<>. Angular brackets enclose words or characters that symbolize a program

code parameter or an GPIB command.

::= "is defined as." For example, <A> ::= <B> indicates that <A> can be

replaced by <B> in any statement containing <A>.

| "or." Indicates a choice of one element from a list. For example, <A> | <B>

indicates <A> or <B> but not both.

... An ellipsis (trailing dots) indicate that the preceding element may be

repeated one or more times.

Introduction

[ ] Square brackets indicate that the enclosed items are optional.

{ } When several items are enclosed by braces, one, and only one of these

elements may be selected.

Definitions d ::= A single ASCII numeric character, 0-9.

n ::= A single ASCII non-zero, numeric character, 1-9.

<NL> ::= Newline or Linefeed (ASCII decimal 10).

<sp> ::= space character.

<white_space> ::= space(s) and tabs.

Contents

Root Level Commands 4

Acquire Commands 7

Calibrate Commands 8

Channel Commands 9

Disk Commands 11

Display Commands 12

Function Commands 13

Histogram Commands 19

Limit Test Commands 20

Marker Commands 21

Mask Test Commands 23

Measure Commands 25

TDR Commands 37

Waveform Commands 41

Waveform Memory Commands 42

Root Level Commands

Command

:BLANk {CHANnel<number> | WMEMory<number> |

FUNCtion <number> | FFT | RESPonse<number> |

HISTogram | PMEMory1}

Turns off an active channel, function, waveform memory, pixel memory, FFT,

histogram, or TDR response. The VIEW command turns them on.

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1 or 2. For waveform

memories (WMEMory): 1, 2, 3, or 4. For pixel memories (PMEMory): 1. For

TDR response: 1, 2, 3, or 4.

Command

:COMMents {PLUGin<number>, <comments>}

Sets the comments field for the plugin. This field is used to describe options

included in the plugin, or for user commands about the plugin.

Represents the plugin slot numbered 1 through 4.

Represents the unquoted string.

Command

:DIGitize [<waveform_name>][,<waveform_name>]

Invokes a special mode of data acquisition that is more efficient than using

the RUN command. This command initializes the selected channels,

functions, responses, or FFT to “unacquired,” then acquires them according

to the current instrument settings. When all signals are completely acquired,

the instrument is stopped.

<waveform_name>

{CHANnel<number> | FUNCtion<number> | FFT |

RESPonse<number>}

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1 or 2. For responses:

1, 2, 3, or 4.

Command

:MENU {APPLication | CHANnel<number> | ACQuire |

MTESt | MEYE | TDR<number> | MTDR<number>}

For channels, indicates the slot (1 through 4) in which the channel resides,

followed by an optional A or B identifying which of two possible channels in

the slot is being referenced.

For TDR, controls the TDR/TDT menus for channels 2 and 4.

For MTDR, controls the TDR/TDT menus for channels 2 and 4.

Root Level Commands

Command

:STORe:WAVEform {CHANnel<number> |

FUNCtion<number> | WMEMory<number> | HISTogram |

FFT | RESPonse<number>},{WMEMory<number>}

Copies a channel, function, stored waveform, histogram, TDR response, or

FFT to a waveform memory. The first parameters specifies the source of the

copy and can be any channel, function, waveform memory, histogram, TDR

response, or the FFT. The second parameter is the destination of the copy,

and can be any waveform memory.

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1 or 2. For waveform

memories (WMEMory): 1, 2, 3, or 4. For responses: 1, 2, 3, or 4.

Command

:VIEW {CHANnel<number> | WMEMory<number> |

FUNCtion<number> | FFT | RESPonse<number> |

HISTogram | PMEMory1}

Turns on a channel, function, pixel memory, waveform memory, TDR

response, histogram, or FFT. Use the BLANk command to turn these off.

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1 or 2. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4. For

pixel memories (PMEMory): 1.

Root Level Commands

Acquire Commands

Command

:ACQuire:BEST[?] {THRuput | FLATness}

When averaging is enabled with ACQuire:AVERage, the FLATness option

improves the step flatness by using a signal processing algorithm within the

instrument. You should use this option when performing TDR measurements

or when step flatness is important. The THRuput option improves the

instrument’s throughput and should be used whenever best flatness is not

required.

Calibrate Commands

Command

:CALibrate:SAMPlers[?] {DISable | ENABle}

Enables or disables the samplers in the plug-in.

Channel Commands

Command

:CHANnel<number>:OFFSet[?] <offset_value>

For TDR and TDT applications, you may change the offset to magnify offset

in some circumstances. This command is used to set the magnify offset as

well as the offset.

An integer, 1-4, indicating the slot in which the channel resides.

<offset_value>

Offset value at center screen; can be volts, amperes, or other units.

Command

:CHANnel<number>:RANGe[?] <range_value>

For TDR and TDT applications, you may change the range to magnify range

in some circumstances. This command is used to set the magnify range as

well as the range.

An integer, 1-4, indicating the slot in which the channel resides.

<range_value>

Full-scale voltage of the specified channel number.

Command

:CHANnel<number>:SCALe[?] <scale_value>

For TDR and TDT applications, you may change the scale to magnify scale in

some circumstances. This command is used to set the magnify scale as well

as the scale.

An integer, 1-4, indicating the slot in which the channel resides.

<scale_value>

Vertical scale of the channel in units per division.

Command

:CHANnel<number>:TDRSkew <percent> [%]

This command sets the TDR skew for the given channel. The TDR skew

control moves the TDR step relative to the trigger position. The control may

be set from -100 to 100 percent of the allowable range. This command is only

applicable to TDR channels.

An integer, 1 through 4, indicating the slot in which the channel resides,

followed by an optional A or B identifying which of two possible channels in

the slot is being referenced.

A number between -100 and 100, used to set the step position.

Command

:CHANnel<number>:UNITs[?] {VOLT | AMPere | WATT |

UNKNown | OHM | REFLect | GAIN}

For TDR and TDT applications, you can select the units OHM, REFLect, and

GAIN. OHM and REFLect may be selected for TDR channels, while GAIN

may be selected for TDT channels. You must perform a normalization and a

reference plane calibration to select these units.

An integer, 1-4, indicating the slot in which the channel resides.

Channel Commands

Disk Commands

Command

:DISK:LOAD "<filename>", <source>

Loads a setup, waveform, database, mask, TDR/TDT calibration, or pixel

memory from the disk. The filename does not include a suffix. The suffix

supplied by the instrument depends on the source and file format specified.

The TDRTDT option is a file type choice used to load TDR/TDT calibration

values into the instrument.

{DATabase | MASK | PMEMory 1 | SETup |

WMEMory<number> | TDRTDT}

Is an MS-DOS compatible file name up to 8 characters long.

Represents waveforms 1, 2, 3, or 4.

Command

:DISK:STORe <source>, "<filename>"[,<format>]

Stores a setup, waveform, database, mask, TDR response, TDR/TDT

calibration, or pixel memory to the disk. The filename does not include a

suffix. The suffix is supplied by the instrument depending on the source and

file format specified. The database may only be saved in internal format.

{DATabase | MASK | PMEMory 1 | SETup |

WMEMory<number> | TDRTDT}

Is an MS-DOS compatible file name up to 8 characters long.

Represents waveforms 1, 2, 3, or 4.

{TEXT [,YVALues | VERBose] | INTernal}

Display Commands

Command

:DISPlay:ASSign[?] {CHANnel<number> |

FUNCtion<number> | RESPonse<number> |

WMEMory<number> | FFT},{UPPer | LOWer}

Assigns the specified channel, waveform, function, TDR response, or FFT to

a particular portion of the waveform area on the screen. This command has

no effect when the graticule format is single.

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1 or 2. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

Function Commands

Command

:FUNCtion{1 | 2}:ADD <source>[,<source>]

Defines a function that takes the algebraic sum of two defined operands.

{CHANnel<number> | FUNCtion<number> |

RESPonse<number> | WMEMory<number> |

<float_value>}

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Command

:FUNCtion{1 | 2}:BWLimit {{CHANnel<number> |

FUNCtion<number> | RESPonse<number> |

WMEMory<number>}, <bandwidth>}

Provides a bandwidth limit filter function. You can use this function on

waveforms to limit the bandwidth of the signal. In TDR or TDT applications

where the accuracy of normalization is not required, you can use this to

simulate a bandlimited signal through a device under test.

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1 or 2. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

Real number indicating frequency limit for the specified function.

Command

:FUNCtion{1 | 2}:DIFFerentiate {CHANnel<number> |

FUNCtion<number> | RESPonse<number> |

WMEMory<number> | <float_value>}

Computes the discrete derivative of the defined operand’s waveform.

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Command

:FUNCtion{1 | 2}:DIVide <source>[,<source>]

Defines a function that divides the first operand by the second operand.

{CHANnel<number> | FUNCtion<number> |

RESPonse<number> | WMEMory<number> |

<float_value>}

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Command

:FUNCtion{1 | 2}:FFTMagnitude {CHANnel<number> |

FUNCtion<number> | RESPonse<number> |

WMEMory<number> | <float_value>}

Defines a function that computes the FFT magnitude.

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Function Commands

Command

:FUNCtion{1 | 2}:INTegrate {CHANnel<number> |

FUNCtion<number> | RESPonse<number> |

WMEMory<number> | <float_value>}

Defines a function that computes the integral of the defined operand’s

waveform.

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Command

:FUNCtion{1 | 2}:INVert {CHANnel<number> |

FUNCtion<number> | RESPonse<number> |

WMEMory<number> | <float_value>}

Defines a function that inverts the defined operand’s waveform by

multiplying by -1.

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Command

:FUNCtion{1 | 2}:MAGNify {CHANnel<number> |

FUNCtion<number> | RESPonse<number> |

WMEMory<number> | <float_value>}

Defines a function that is a copy of the operand. The magnify function is a

software magnify. No hardware settings are altered as a result of using this

function. It is useful for scaling channels, another function, TDR/TDT

responses and memories with the RANGE and OFFSET commands in this

subsystem.

Magnify performs the same operation as the "ONLY" operator, and is the

preferred operator of the two. "ONLY" is included in this instrument for

compatibility with previous instruments.

Function Commands

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Command

:FUNCtion{1 | 2}:MAXimum {CHANnel<number> |

FUNCtion<number> | RESPonse<number> |

WMEMory<number> | <float_value>}

Defines a function that computes the maximum value of the operand

waveform in each time bucket.

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Command

:FUNCtion{1 | 2}:MINimum {CHANnel<number> |

FUNCtion<number> | RESPonse<number> |

WMEMory<number> | <float_value>}

Defines a function that computes the minimum of each time bucket for the

defined operand’s waveform.

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Function Commands

Command

:FUNCtion{1 | 2}:MULTiply <source>[,<source>]

Defines a function that algebraically multiplies the first operand by the

second operand.

{CHANnel<number> | FUNCtion<number> |

RESPonse<number> | WMEMory<number> |

<float_value>}

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Command

:FUNCtion{1 | 2}:SUBTract <source>[,<source>]

Defines a function that algebraically subtracts the second operand from the

first operand.

{CHANnel<number> | FUNCtion<number> |

RESPonse<number> | WMEMory<number> |

<float_value>}

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Function Commands

Command

:FUNCtion{1 | 2}:VERSus <source>[,<source>]

Defines a function for an X-versus-Y display. The first operand defines the

Y axis and the second defines the X axis. The Y-axis range and offset are

initially equal to that of the first operand and can be adjusted with the

RANGE and OFFSET commands.

{CHANnel<number> | FUNCtion<number> |

RESPonse<number> | WMEMory<number> |

<float_value>}

For channels: an integer, 1 through 4, indicating the slot in which the channel

resides, followed by an optional A or B identifying which of two possible

channels in the slot is being referenced. For functions: 1. For waveform

memories (WMEMory): 1, 2, 3, or 4. For TDR responses: 1, 2, 3, or 4.

<float_value>

A real number.

Function Commands

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Agilent Technologies 54754a User manual

Brand: Agilent Technologies

Model: 54754a

Category: Measuring, testing & control

Type: User manual

This manual is also suitable for

Sprinkler 54753a

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Agilent Technologies 54754a User manual

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Agilent Technologies 54754a User manual

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