Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
Section 7: SCPI command reference
077114601 / March 2019
7-189
When specifying buffer elements, you can:
Specify buffer elements in any order.
Repeat elements as long as the number of elements in the list is less than 10.
Use a comma to delineate multiple elements for a data point.
Use single or double quotes to enclose all the elements.
For large buffers, you can get the data in 100-point increments. For example, if the data point is 250,
TRACe:DATA:SELected 1,100,"READ, SOURce"
command will return the first 100 readings and
source values from the buffer. If additional buffer element data is required, such as the CV or CC
status, sending the command
TRACe:DATA:SELected? 1,100,"MODE"
can get the output status.
The options for
<bufferElements>
are described in the following table.
Option
Description
Example
READing
The measurement reading based on the
SENS:FUNC
setting.
+8.034562E-03
SOURce
The source value.
+4.01
UNIT
The unit of measure reading, source value, and
timestamp
V
,
A
, and
s
MODE
The output state.
CC
,
CV
or
OFF
DATE
The date for the data point.
07/01/2013
TIME
The time for the data point.
19:21:36.2556
TSTamp
The timestamp for the data point.
07/01/2013
19:21:36.2556
RELative
The relative time when the data point was measured,
formatted in seconds.
+4.00s
RSTamp
The relative timestamp when the data point was
measured.
12:23:32.2345
RNUMber
The reading number indicates the point index in the trace
buffer.
0001
The
RELative
and
RSTamp
elements are defined as the time since the first reading was stored in
the buffer. These values are reset every 24-hours. The
DATE
,
TIME
, and
TSTamp
elements
represent absolute time from the internal real-time clock (RTC).
Example
:TRAC:DATA:SEL? 1, 99, "READ,SOUR,REL"
Return buffer readings 1 through 99 with the
measurement value, source value, and the relative
time.
Also see
None
