2400S-903-01 Rev. E / September 2011
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Section Topics
1-21
Series 2400 SourceMeter® Quick Start Guide
Section 1: Introduction
Recalling readings
To recall readings, press the RECALL key. The buffer location number is the memory location of
the recalled reading. Location #0000 indicates that the displayed reading is stored at the first
memory location. To display other stored readings, use the edit keys to change the buffer location
number. To exit from the recall mode, press EXIT.
Timestamp
— Just below the buffer location number is the timestamp (in seconds) for the
reading. It can be referenced to the first reading stored in the buffer (absolute timestamp), or it can
indicate the time between buffer readings (delta timestamp). If the absolute timestamp is selected,
the @ symbol precedes the timestamp value. If the delta timestamp is selected, the
δ
symbol
precedes the timestamp value. Regardless of which timestamp is selected, the first reading is
always timestamped at zero seconds.
To change the timestamp, exit from the recall mode and use the following menu sequence:
Press CONFIG > press STORE > select ABSOLUTE or DELTA
NOTE While in the recall mode, buffer statistics (minimum, maximum, peak-
to-peak, average and standard deviation) can be displayed using the
TOGGLE key. Details about buffer statistics are provided in Section 9
of the 2400 Series SourceMeter User’s Manual.
Remote command programming
SCPI commands
SCPI commands to configure and control the buffer are listed in Table 13.
NOTE Table 13 does not provide a complete listing of buffer commands.
Documentation for all buffer commands (including the ones for buffer
statistics) can be found in Section 9 of the 2400 Series SourceMeter
User’s Manual.
Table 1-13
SCPI commands; data store
Command
Description
:TRACe:POINts <n>
Specify buffer size; <n> = 1 to 2500
:TRACe:FEED <name>
Specify reading source; <name> = SENSe (raw
readings), CALCulate (math readings), or
CALCulate2 (limits readings).
:TRACe:TSTamp:FORMat <name>
Select timestamp format; <name> = ABSolute or
DELTa.
:TRACe:FEED:CONTrol <name>
Enable/disable buffer; <name> = NEXT (fill buffer
and stop) or NEVer (disable buffer).
:TRACe:DATA?
Read contents of buffer.
:TRACe:CLEar
Clear buffer.
