Keysight Technologies 3458A Guide D'utilisation page 435

Maximizing the Testing Speed
Program memory
The speed of the testing process can also be maximized by tailoring the
communication path between the 3458A and the computer. The dmm is generally
the fastest instrument in the system; hence to perform a series of measurements,
the computer may be compelled to take more time with other instruments.
Several features of the 3458A multimeter allow the allocation of measurement
tasks to be split optimally between the computer and the dmm. Its unique,
non-volatile Program Memory allows sequences of measurement to be performed
dynamically using external events such as external, auxiliary, or GPIB
step through the measurement sequence. In addition, using Program Memory,
complete measurement sequences can be programmed and initiated from the
front panel for standalone operation without a controller.
State storage
State Storage permits a static instrument state to be totally defined and recalled
from memory with a simple program command. In addition, the 3458A transfers
high-speed measurement data over GPIB or into and out its standard 10,000 (or
optional 75,000) Reading Memory at 100,000 readings per second.
Reading analysis
Additional flexibility is provided by the 3458A's capability to perform data analysis
internally to speed throughput and still give you the data you need for statistica1
quality control or for simple limit checking. Program Memory can perform the
pass/fail math function and alert the computer to out-of-limits measurements
with an interrupt flag. Alternatively, the many available math functions may be
used to post-process the data acquired in memory, without loss of the maximum
reading rate. These include statistical functions (mean, standard deviation,
maximum, minimum, number of readings), dB and dBm, thermistor linearization,
RTD linearization, scale, filter functions, and others. The choice of whether to
perform data analysis in the computer or in the dmm depends on the testing task
[1] GPIB is an implementation of the IEEE Standard 488 and the identical ANSI Standard MC1.1
Keysight 3458A User's Guide
"Digital interface for programmable instrumentation".
Optimizing Throughout and Reading Rate D
[1]
triggers to
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