8-2
Buffer
Buffer operations
Model 6514 has a buffer to store from one to 2500 readings. It also stores overflow readings.
Each reading has a timestamp. The timestamp for each reading is referenced to the time the
measure/store process is started. In addition, recalled data includes statistical information
(maximum, minimum, peak-to-peak, average and standard deviation).
The buffer fills with the specified number of readings and stops. Readings are placed in the
buffer after any math operations are performed. Math operations include relative, mX+b,
percent, or limits.
Buffered data is overwritten each time the storage operation is selected. The data is volatile;
it is not saved through a power cycle.
Measurement function changes are permissible during the storage process. Note however,
that the statistics will be based on the readings of the different measurement functions.
Store
Perform the following steps to store readings:
1.
Set up the instrument for the desired configuration.
2.
Press the STORE key.
3.
Use the cursor keys
and
, and the RANGE keys
and
to set the number of readings
to store (1 to 2500).
4.
Press ENTER to enable the buffer. If in the immediate trigger mode, the storage process
will start immediately. If in the external input trigger mode, each input trigger (or press
of TRIG key) will store a reading. See Section 9 for information on triggering.
NOTE
The asterisk (*) annunciator turns on to indicate that the data storage operation is
enabled. It will turn off when the storage process is finished (buffer full).
Recall
Perform the following steps to view stored readings and buffer statistics:
1.
Press RCLL. The message “RDG NO. 1” is displayed. Note that the arrow annunciator
(
↔
)
also turns on to indicate that additional data is available for viewing.
2.
As shown in Figure 8-1, use the RANGE keys
and
and the cursor keys
,
to nav-
igate through the reading numbers, reading values, timestamps, and buffer statistics.
3.
To return to the normal display, press EXIT.
Summary of Contents for 6514
Page 203: ...14 CommonCommands...
Page 207: ...15 SCPISignalOriented MeasurementCommands...
Page 235: ...18 PerformanceVerification...
Page 254: ...19 Calibration...
Page 274: ...20 RoutineMaintenance...
Page 278: ...A Specifications...
Page 282: ...B StatusandErrorMessages...
Page 288: ...C GeneralMeasurement Considerations...
Page 294: ...D DDCEmulationCommands...
Page 299: ...E ExamplePrograms...
Page 306: ...F IEEE 488BusOverview...
Page 320: ...G IEEE 488andSCPI ConformanceInformation...
Page 324: ...H CalibrationOptions...