14-16 SCPI Reference Tables Model 6220/6221 Reference Manual
Return to Section 14 topics
Table 14-9
Trace command summary
Command Description Default Sec SCPI
TRACe Commands to control buffer: Note 1 6 √
:CLEar Clear readings from buffer.
:FREE? Query memory bytes available in buffer.
:POINts <n> Specify buffer size (number of readings to store):
1 to 65536.
Note 2 √
:ACTual? Query number readings stored in the buffer.
:POINts? Query buffer size. √
:NOTify <NRf> Specify number of stored readings that will set the
Trace Notify bit (B6) of the measurement event
register. Must be less than the TRACe:POINts
value: 1 to (TRAC:POIN -1).
Note 3
:NOTify? Query trace notify value.
:FEED <name> Select source (feed) for buffer readings: SENS1,
CALC1, or NONE,
CALC1 √
:CONTrol <name> Set buffer control: NEXT or NEVer NEV √
:CONTrol? Query buffer control. √
:FEED? Query buffer feed. √
:TSTamp Timestamp for buffer readings:
:FORMat <name> Select timestamp format: ABSolute or DELTa ABS
:FORMat? Query timestamp format.
:DATA? Request all readings in buffer. √
:TYPE? Query type of readings stored in buffer: Returns
NONE, DELT, DCON, or PULS.
:SELected? <start>,
<count>
Request list of stored readings: Requires a
starting value and the number of readings (count).
Notes:
1. SYSTem:PRESet and *RST have no effect on the TRACe commands. The listed defaults are power-on defaults.
2. Buffer size is set to the number of delta readings to be performed.
3. The default parameter is one-half the set buffer size (TRACe:POINts / 2).
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