Model 2701 User’s Manual
Buffer
6-11
f.
TRACe:POINts <NRf>
Set buffer size (2 to 450000)
TRACe:POINts?
Query buffer size
TRACe:POINts:ACTual?
Query # of readings stored in buffer
TRACe:POINts <NRf> – With buffer auto-clear enabled, you can set the buffer to
store from 2 to 450,000 readings. A buffer size of zero or one is not valid (error -222).
With buffer auto-clear disabled, you cannot use this command to set buffer size (error
-221) because it is fixed at 450,000.
NOTE
The ¼ full and ¾ buffer full measurement events are not intended to be used with
buffer size smaller than four readings.
TRACe:POINts? and TRACe:POINTs:ACTual? – The :POINts? command queries the
set size of the buffer, while :POINTs:ACTual? queries the number of readings presently
stored in the buffer.
g.
TRACe:TSTamp:FORMat
ABSolute | DELta
Select timestamp format
For front panel operation, both timestamp formats (absolute and delta) can be recalled.
For remote programming, you can only use one timestamp at a time.
NOTE
Changing the timestamp format clears the buffer.
The timestamp will only be included with a returned buffer reading if it is specified as a
data element (see FORMat:ELEMents).
h.
TRACe:FEED
SENSe | CALCulate | NONE
Select source of readings
TRACe:FEED:CONTrol
NEXT| ALWays | NEVer
Select buffer control
TRACe:FEED — The SENSe parameter selects readings before any enabled mX+b,
Percent, or Reciprocal math calculation. For the CALCulate parameter, the result of the
calculation is stored in the buffer. The NONE parameter disables storage into the buffer.
Math functions are covered in Section 5.
NOTE
In order to store readings in the buffer, TRACe:FEED cannot be set to NONE.
TRACe:FEED:CONTrol — Selecting NEXT enables the buffer. After the specified
number of readings (buffer size) are stored, buffer operation disables. The ALWays
parameter places the buffer into a continuous filling mode. After the specified number
of readings are stored, operation wraps back to the first buffer location and overwrites
the previous readings. The NEVer parameter disables buffer operation.
2701-900-01.book Page 11 Wednesday, August 3, 2011 9:43 AM
Summary of Contents for 2701
Page 344: ...12 CommonCommands 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 366: ...15 SCPIReferenceTables 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 393: ...A Specifications 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 399: ...B Model7700ConnectionGuide 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 410: ...C StatusandErrorMessages 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 417: ...D SignalProcessing SequenceandDataFlow 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 430: ...E MeasurementConsiderations 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 450: ...G KE2700InstrumentDriver Examples 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
