Series 3700 System Switch/Multimeter Reference Manual
Section 6
:
Buffer: Data Storage and Retrieval
Document Number: 3700S-901-01 Rev. A / August 2007
6-3
Recalling readings
Readings stored in the buffer are displayed by pressing the
REC
key. Turn the wheel or use the
◄
CURSOR
► keys to cycle through the buffer's contents. A message will be displayed if a
buffer is empty.
NOTE
In order to recall readings, a reading buffer must be created, selected, and also
contain data (it cannot be empty).
When recalling a buffer, the display contains the following information:
Measurement reading for each entry is on the top right of the display.
Buffer location number is on the bottom left of the display.
Timestamp (if used) is positioned on the bottom right of the display.
Channel or channel pattern (if used) associated with the reading for each entry is on the
top left of the display.
Timestamp
When timestamps are enabled, they are shown in absolute time. Timestamps are stored in as
the number of seconds in Coordinated Universal Time (UTC) format. Therefore, the displayed
timestamp will show month, day, and year, as well as hour, minutes, and seconds. After
seconds is a decimal point that shows the fractional seconds for reading timestamp.
Channel display
The display will provide different information based on the channel operation when the reading
was acquired:
If no channel or channel pattern is closed when the reading was acquired, "None" is
displayed.
If only a single channel or backplane relay was closed, the channel number is displayed
(for example, 5003 or 5915).
If a channel or backplane relay plus another backplane relay or other channel is closed,
then the channel number will be displayed followed by a + sign is displayed (for example,
3005+ or 3915+). The channel will be in the display unless the last close operation
involved only backplane relays. If the last close operation involved only backplane relays,
it will only list the first relay.
If channels and backplane relays were closed in a channel list, the last channel specified
will be displayed.
If a channel pattern was closed, then the first five characters of the channel pattern name
are displayed (for example, mypatt1 is shown as mypat).
Buffer configuration (front panel)
The buffer can be configured through the RD BUFFER ATTR MENU. Access to this menu is
allowed only when a buffer has been previously created and selected.
