Front Panel Operation
2-64
A full data group includes the readings, units, channel#,
reading#, time-stamp, and status (overflow). A compact data
group does not include channel# or time-stamp information.
In addition to these items, recalled data also includes statis-
tical information, such as minimum, maximum, average, and
standard deviation.
The following paragraphs discuss configuration of the buffer
acquisition speed, data grouping, and buffer control, as well
as recalling buffered data. The CONFIG DATA STORE
menu structure is shown and summarized in Table 2-29.
When the Model 2002 releases the trigger line, the leading
positive-going edge triggers the Model 7001/7002 to close
the next channel in the scan. This pulls the trigger line low,
triggering the Model 2002 to measure the next DUT. The
process continues until all ten channels are scanned and mea-
sured.
2.8 Buffer
The Model 2002 has a buffer to store reading data. It can
acquire readings at two different rates (normal and burst
modes). The maximum possible number of stored readings
depends on the installed memory option and the user-
programmable data group. (See Table 2-28.)
Table 2-28
Reading storage options
Data group
Memory Full Compact Type
Standard
MEM1 option
MEM2 option
404
1381
5980
2027
6909
29908
Volatile
Non-volatile
Non-volatile
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