IEEE-488 Reference
3-56
Table 3-14
TRACe command summary
Command
Description
Power-up
defaults*
SCPI
Ref.
:TRACe|:DATA
:CLEar
:FREE?
:POINts <n>
:AUTO <b>
:AUTO?
:ACTual?
:POINts?
:FEED
:PRETrigger
:AMOunt
[:PERCent] <n>
[:PERCent]?
:READings <n>
:READings?
:SOURce <name>
:SOURce?
:CONTrol <name>
:CONTrol?
:DATA?
:LAST?
:TSTamp
:FORMat <name>
:FORMat?
:ELEMents <name>
Use :TRACe or :DATA as root command.
Clear readings from buffer.
Query bytes available and bytes in use.
Specify size of buffer.
Enable or disable auto buffer sizing.
Query state of auto buffer sizing.
Query number of readings stored in the buffer.
Query buffer size.
Path to control Feed commands.
Path to configure pre-trigger storage.
Path to specify number of pre-trigger readings.
Specify % (0 to 100) of buffer.
Query percentage.
Specify as a number.
Query number of readings.
Select pre-trigger source event (EXTernal, TLINk, BUS
or MANual).
Query pre-trigger source event.
Select buffer control mode (NEVer, NEXT,
ALWays or PRETrigger).
Query buffer control mode.
Read all readings in the buffer.
Read last reading stored in buffer by Alternating Polarity test.
Path to select timestamp format for buffer readings.
Select timestamp format (ABSolute or DELTa).
Query timestamp format.
Select reading elements (TSTamp, HUMidity, CHANnel,
ETEMperature, VSOurce, NONE).
√
√
√
√
√
√
√
√
23
3.23.1
3.23.2
3.23.3
3.23.4
3.23.5
3.23.5
3.23.6
3.23.7
*:SYSTem:PRESet and *RST have no effect on the commands in this subsystem.
