Buffer Location Number; Timestamp; Displaying Other Buffer Readings - Keithley 2500 User Manual

Models 2500 and 2502 User's Manual

Buffer location number

The buffer location number indicates the memory location of the source-measure reading.
Location #0000 indicates that the displayed source-measure reading is stored at the first
memory location. If limit testing was performed, a "P" or an "F" will precede the buffer
location number to indicate the pass/fail result of the test. Limit testing is covered in
Section

Timestamp

The first source-measure reading stored in the buffer (#0000) is timestamped at
0000000.000 seconds. Subsequent readings can be recalled in absolute or DELTA
timestamp format. For the absolute format, the timestamp references readings to zero
seconds. For the DELTA format, the timestamp indicates the time between the displayed
reading and the reading before it. To set the timestamp format, see
page 8-5.

Displaying other buffer readings

To display the other readings stored in the buffer, display the desired memory location
number. The EDIT
tion number. Cursor position is controlled by the EDIT
ward past the last stored reading, the buffer wraps to the first stored reading. Conversely,
when scrolling in reverse past the first stored reading, the buffer wraps to the last stored
reading.
The memory location number can also be keyed in using the 0 through 9 number keys.
Position the cursor on the appropriate digit and press the desired number key. The cursor
then moves right to the next least significant digit. For example, to display reading #0236,
position the cursor all the way to the left (MSD) and press 0, 2, 3, 6. Note that if keying in
a number that exceeds the buffer size, the reading at the highest memory location is dis-
played.
To exit from the data store recall mode, press EXIT.
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11.
and keys increment and decrement the selected digit of the loca-
Data Store
"Timestamp format,"
and keys. When scrolling for-
8-3