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How to Set the Measurement Configuration
Choosing the Kind of Measurement
Compare and Acquire Around Error
In this measurement mode the system continuously acquires data applied
to the analyzer connectors. The acquired data is compared with expected
data. As soon as an error occurs the system starts a counter.
The advantage of this mode is, that it is possible to define how long data
should be acquired after the failure occurred, so that a pre- and post
history around the error is captured and can be analyzed. The result can be
reviewed in the Error State Display and with the Waveform Viewer.
If you have chosen Compare and Acquire around Error, you have one
additional option:
Figure 61
Measurement Configuration Window for Capture Around Error Measurement
You can set the number of vectors to be stored after an error.
If an error occurs, the test will stop after the specified number of vectors
has been acquired. The test will of course also stop if the test sequence
expires before that number is reached.
Compare and Capture
In this measurement mode the system captures data applied to the
analyzer connectors until the sequence is finished or the Stop button is
pressed. While capturing, the system also compares the captured data with
the expected data.
The result can be reviewed in the Error State Display and with the
Waveform Viewer.
131
HP 81200 Data Generator/Analyzer Platform User Guide, Revision 2.1
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