Keithley 3700A Series, Reference Manual

Page: 409 / 936

Section 11: TSP command reference Series 3700A System Switch/Multimeter Reference Manual
11-30 3700AS-901-01 Rev. D/June 2018
Details
The
readings
buffer recall attribute is like an array (a Lua table) of the readings stored in the
reading buffer. This array holds the same data that is returned when the reading buffer is accessed
directly; that is,
rb[2]
and
rb.readings[2]
access the same value.
Example
reset()
testData = dmm.makebuffer(1000)
testData.collectchannels = 1
dmm.nplc = 0.5
dmm.range = 0
dmm.configure.set("Dcv_100mV")
dmm.setconfig("slot2", "Dcv_100mV")
scan.create("2035:2040")
scan.execute(testData)
print(testData.readings[1])
printbuffer(1, 6, testData.readings)
This example creates a reading buffer named
testData
, configures the buffer to collect
channel data, sets and saves the DMM
configuration, creates a scan list, and then
runs the scan.
The
print()
command then outputs the first
reading in the reading buffer.
Output:
6.239269805e-07
The
printbuffer()
command then outputs
the readings for measurements 1 to 6 in the
reading buffer.
Output:
6.239269805e-07, 6.943093615e-07,
4.954026325e-07, 7.432710179e-07,
6.943093615e-07, 6.331072911e-07
NOTE: An alternative way to use the
printbuffer()
command for this example
is
printbuffer(1, 6, testData)
,
because "
readings
" is an optional
parameter and is assumed if it has not been
specified.
Also see
bufferVar.formattedreadings (on page 11-26)
bufferVar.fractionalseconds (on page 11-27)
bufferVar.relativetimestamps (on page 11-31)
bufferVar.seconds (on page 11-32)
bufferVar.statuses (on page 11-33)
bufferVar.times (on page 11-34)
bufferVar.units (on page 11-37)
Reading buffers (on page 6-7, on page 6-1)