TRACe:CATalog?

34980A

TRACe:CATalog?

Syntax

TRACe:CATalog? {(@<channel>)|<slot>}

Description

This command returns a list of trace names currently downloaded to volatile memory.

Used With:

  • 34950A Digital I/O Module (digital output channels only)

  • 34951A Isolated DAC Module

Parameters

Name

Type

Range of Values

Default Value

<channel> 34950A Only

Numeric

One channel in the form (@sccc).

Select from s101 through s104, s201 through s204.

This is a required parameter

<slot>
34951A Only

Discrete

{1|2|3|4|5|6|7|8}

This is a required parameter

Remarks

  • Use the TRACe:DELete[:NAME] command to delete traces from memory.

  • Use the TRACe:POINts? command to determine the number of points used by a specific trace name.

  • Each bank on the 34950A has its own memory (64K bytes each) for use in buffered output transfers. You can download up to 32 traces into each bank.

  • You can store up to 512,000 trace points per 34951A module.

  • For the 34950A, if you change the width of a bank (see CONFigure:DIGital:WIDTh command), all traces in memory are cleared.

  • A Factory Reset (*RST command), Instrument Preset (SYSTem:PRESet command), and Card Reset (SYSTem:CPON command) deletes the trace from memory and removes all trace name associations. In addition, storing the instrument state (*SAV command) will delete the trace from memory and remove all trace name associations.

Return Format

This command reads the trace names currently assigned and returns a comma-separated list. If the specified slot has no trace names assigned, a null string ( " " ) is returned

Examples

The following command returns a list of trace names downloaded to channel 101 on the 34950A in slot 3.

TRAC:CAT? (@3101)

Typical Response:  PATTERN_1,DOUT1

The following command returns a list of trace names downloaded to the 34951A in slot 4 (the quotes are also returned).

TRAC:CAT? 4

Typical Response:  "SIN","SQU","TEST_WFORM"

See Also

[SENSe:]DIGital:MEMory:ENABle

TRACe:POINts?

TRACe:DELete[:NAME]