TRACe...    Related Topics

This subsystem handles active trace data and trace data stored in the analyzer's internal memory.  

   

Command tree: TRACe

:COPY

:MATH

:CLEar

[:DATA]

[:RESPonse]

[:ALL]?

:STIMulus

[:ALL]?

Trace data is transferred in either ASCII or block data (REAL) format, depending on the FORMat[:DATA] setting. If the block data format is used, it is recommended to select EOI as receive terminator (SYSTem:COMMunicate:GPIB[:SELF]:RTERminator EOI).  

Reserved Trace Names

The commands in the TRACe... menu use the following ZVR-compatible parameters to specify traces:

Parameter

Meaning

Used in

CH1DATA, CH2DATA, CH3DATA, CH4DATA

Active data trace of channels 1 to 4

TRACe:COPY
TRACe[:DATA][:RESPonse][:ALL]?
TRACe[:DATA][:STIMulus][:ALL]?
CALCulate<Chn>:MATH[:EXPRession][:DEFine]

CH1MEM, CH2MEM, CH3MEM, CH4MEM

Active memory trace associated to the active data trace CH1DATA, CH2DATA, CH3DATA, CH4DATA, respectively.

TRACe[:DATA][:RESPonse][:ALL]?
TRACe[:DATA][:STIMulus][:ALL]?
 

IMPLied

Active data trace, addressed with <Chn>

CALCulate<Chn>:MATH[:EXPRession][:DEFine]

CHMem

Active memory trace assigned to the IMPlied trace

CALCulate<Chn>:MATH[:EXPRession][:DEFine]

MDATA1, MDATA2, MDATA3, MDATA4, MDATA5, MDATA6, MDATA7, MDATA8

Memory trace named Mem<n>[Trc<m>]. The trace name is unique because <n> counts all data and memory traces in the active setup.

TRACe:CLEar
TRACe:COPY
TRACe[:DATA][:RESPonse][:ALL]?
TRACe[:DATA][:STIMulus][:ALL]?
CALCulate<Chn>:MATH[:EXPRession][:DEFine]

TRACe:CLEar
MDATA1 | MDATA2 | MDATA3 | MDATA4 | MDATA5 | MDATA6 | MDATA7 | MDATA8

Deletes one of the memory traces Mem<n>[Trc<m>], where n = 1, ... 8.

Parameters

Identifier for the memory trace; see list of trace names. .

Range [def. unit]

MDATA<n> where <n> = 1 to 8. [–]

*RST value

–

 

SCPI, Command Types

Device-specific, no query

 

Example:

SWE:POIN 20

Create a trace with 20 sweep points, making the created trace the active trace of channel 1 (omitted optional mnemonic SENSe1).

TRAC:COPY "Mem_Pt20",CH1DATA

Copy the current state of the created trace to a memory trace named "Mem_Pt20". The memory trace is not displayed.

DISP:WIND:TRAC2:FEED "MEM_PT20"

Display the created memory trace in the active diagram area (diagram area no. 1).

 

 

TRACe:COPY <memory_trc>,<data_trc>

Copies a data trace to a memory trace. The trace to be copied can be specified by two alternative methods:

The created memory trace can be specified as follows:

An existing memory trace with the same name is overwritten.

The copied trace is the data trace which is not modified by any mathematical operations. To copy a mathematical trace to a memory trace, use TRACe:COPY:MATH. To copy the active trace to the memory using an automatic memory trace name, use CALCulate<Chn>:MATH:MEMorize.

<memory_trc>

Name of the memory trace.  

Range [def. unit]

<memory_trace> is either a string variable (enclosed in single or double quotes) or one of the following reserved names (no string variables):

MDATA1 | MDATA2 | MDATA3 | MDATA4 | MDATA5 | MDATA6 | MDATA7 | MDATA8 (only for memory traces Mem<n>[Trc<m>], where n = 1, ... 8; see list of trace names). [–]

*RST value

–

 

<data_trc>

Name of the data trace

Range [def. unit]

<data_trace> is either a string variable (enclosed in single or double quotes) or one of the following reserved names (no string variables):

CH1DATA | CH2DATA | CH3DATA | CH4DATA (only for the active data trace in channels Ch1, Ch2, Ch3, Ch4; see list of trace names). [–]

*RST value

–

 

SCPI, Command Types

Confirmed, no query

 

Example:

*RST; SWE:POIN 20

Create a trace with 20 sweep points, making the created trace the active trace of channel 1 (omitted optional mnemonic SENSe1).

TRAC:COPY "Mem_Pt20",CH1DATA

Copy the current state of the created trace to a memory trace named "Mem_Pt20". The memory trace is not displayed.

DISP:WIND:TRAC2:FEED "MEM_PT20"

Display the created memory trace in the active diagram area (diagram area no. 1).

 

 

TRACe:COPY:MATH <memory_trc>,<data_trc>

Copies a mathematical trace to a memory trace. The trace to be copied can be specified by two alternative methods:

The created memory trace can be specified as follows:

An existing memory trace with the same name is overwritten.

To copy a data trace which is not modified by any mathematical operations, use TRACe:COPY.  

<memory_trc>

Name of the memory trace.  

Range [def. unit]

<memory_trace> is either a string variable (enclosed in single or double quotes) or one of the following reserved names (no string variables):

MDATA1 | MDATA2 | MDATA3 | MDATA4 | MDATA5 | MDATA6 | MDATA7 | MDATA8 (only for memory traces Mem<n>[Trc<m>], where n = 1, ... 8; see list of trace names). [–]

*RST value

–

 

<data_trc>

Name of the data trace

Range [def. unit]

<data_trace> is either a string variable (enclosed in single or double quotes) or one of the following reserved names (no string variables):

CH1DATA | CH2DATA | CH3DATA | CH4DATA (only for the active data trace in channels Ch1, Ch2, Ch3, Ch4; see list of trace names). [–]

*RST value

–

 

SCPI, Command Types

Confirmed, no query

 

Example:

*RST; SWE:POIN 20

Create a trace with 20 sweep points, making the created trace the active trace of channel 1 (omitted optional mnemonic SENSe1).

CALC:MATH:SDEF 'Trc1 / 2'; CALC:MATH:STAT ON

Define a mathematical trace, dividing the data trace by 2. Activate the mathematical mode and display the mathematical trace instead of the data trace.

TRAC:COPY:MATH 'Mem_Pt20',CH1DATA; CALC:MATH:STAT OFF

Copy the current state of the mathematical trace to a memory trace named "Mem_Pt20". The memory trace is not displayed. Switch the display back to the data trace.

DISP:WIND:TRAC2:FEED 'MEM_PT20'

Display the created memory trace together with the data trace.

 

 

TRACe[:DATA][:RESPonse][:ALL]?
CH1DATA | CH2DATA | CH3DATA | CH4DATA | CH1MEM | CH2MEM | CH3MEM | CH4MEM | MDATA1 | MDATA2 | MDATA3 | MDATA4 | MDATA5 | MDATA6 | MDATA7 | MDATA8

Returns the response values of the active data trace or memory trace (see trace names).

To read the response values of an arbitrary data or memory trace, use CALCulate<Chn>:DATA? To read the response values of a trace acquired in single sweep mode (INITiate<Ch>:CONTinuous OFF), use CALCulate<Chn>:DATA:NSWeep?  

<Response>

Response data of the selected trace, see list of trace names.

Range [def. unit]

The data is transferred in the data format defined via FORMat[:DATA]. The unit is the default unit of the measured parameter; see CALCulate<Ch>:PARameter:SDEFine.  

*RST value

–

 

SCPI, Command Types

Device-specific, query only

 

Example:

SWE:POIN 20

Create a trace with 20 sweep points, making the created trace the active trace of channel 1 (omitted optional mnemonic SENSe1).  

TRAC? CH1DATA

Query the 20 response values of the created trace. In the default format setting, the data is returned as a comma-separated list of ASCII values.  

 

 

TRACe[:DATA]:STIMulus[:ALL]?
CH1DATA | CH2DATA | CH3DATA | CH4DATA | CH1MEM | CH2MEM | CH3MEM | CH4MEM | MDATA1 | MDATA2 | MDATA3 | MDATA4 | MDATA5 | MDATA6 | MDATA7 | MDATA8

Returns the stimulus values of the active data trace or memory trace (see trace names).

To read the stimulus values of an arbitrary data or memory trace, use CALCulate<Chn>:DATA:STIMulus?

<Response>

Response data of the selected trace, see list of trace names.

Range [def. unit]

The data is transferred in the data format defined via FORMat[:DATA]. The numeric values are expressed in the default unit of the stimulus variable.  [Hz, dBm or s, depending on the sweep type]

*RST value

–

 

SCPI, Command Types

Device-specific, query only

 

Example:

SWE:POIN 20

Create a trace with 20 sweep points, making the created trace the active trace of channel 1 (omitted optional mnemonic SENSe1).  

TRAC:STIM? CH1DATA

Query the 20 stimulus values of the created trace. In the default format setting, the data is returned as a comma-separated list of 10-digit ASCII values.