4 recording statistics, 5 statistics formulas – Measurement Computing Analyzer488 User Manual

Page 33

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Section 2

Getting Started

2.11

2.4.4 Recording Statistics

While recording, the Analyzer488 maintains various statistics about

the number of bus events which have occurred and the position of particular
bus events within the Analyzer488 record memory. When recording is first
enabled these statistics are reset to zero or set to default values.

The statistics include the following:

Total number of bus events which have occurred

0 to 99,999,999

Total number of bus events in memory

0 to 32,768

Total number of bus events which occurred prior

0 to 99,999,999

to the trigger event

Total number of bus events in memory which

0 to 32,767

occurred prior to the trigger point event

Total number of bus events which occurred after

0 to 99,999,999

the trigger signal

Total number of bus records in memory which

0 to 32,767

occurred after the trigger point event

Location of the earliest recorded bus record

0 to 32767 or invalid

Location of the last recorded bus record

0 to 32767 or invalid

Location of the trigger point event

0 to 32767 or invalid

2.4.5 Statistics Formulas

The total number of bus events can exceed the record memory size of the

Analyzer488. The Analyzer488 will count up to 99,999,999 bus events before
resetting the statistics. The maximum total number of recorded events is 32,768,
the size of the record memory. Below are simple equations showing how the
Total Event and Total number of recorded events are computed. In each
equation, the trigger point counts as one event.

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