6-10
Buffer
Model 2701 User’s Manual
a.
SYSTem:TIME
<hr, min, sec>
Set clock time
Use to set the clock time in the 24-hour format (hr/min/sec). Seconds can be set to
0.01 sec resolution. Examples:
SYST:TIME 13, 23, 36
'Set time to 1:23:36 PM.
SYST:TIME 3, 25, 28.5
'Set time to 3:25:28.5 AM.
The SYSTem:TIME? command can be used to read the time. Note that it returns the
actual clock time and not the time parameter specified by the TIME command.
b.
SYSTem:DATE
<yr, mo, day>
Set clock date
Use to set the clock date in the year/month/day format. When setting the year, a 4-digit
value must be used. Example:
SYSTem:DATE 1999, 11, 10
'Set clock date to November 10, 1999.
c.
SYSTem:TSTamp:TYPE
RELative | RTClock
Select timestamp
SYSTem:TSTamp:TYPE?
Query timestamp type; next storage
TRACe:TSTamp:TYPE?
Query timestamp type; readings in buffer
SYSTem:TSTamp:TYPE <name> — Use to select the relative timestamp or the
real-time timestamp. Note that changing the timestamp will clear the buffer if a storage
is in process. If no storage is in process, changing the timestamp will not clear the
buffer.
SYSTem:TSTamp:TYPE? and TRACe:TSTamp:TYPE? — Both of these commands
query the timestamp type. However, SYSTem:TSTamp:TYPE? queries the timestamp
that will be used for the next storage operation, while TRACe:TSTamp:TYPE? queries
the timestamp for readings that are presently stored in the buffer.
d.
TRACe:CLEar
Clear the buffer
TRACe:CLEar:AUTO
ON | OFF
Control (on/off) buffer auto-clear
TRACe:CLEar — Used to clear the buffer. Buffer readings are not lost (cleared) when
the Model 2701 is turned off.
When TRAC:CLE is sent while displaying stored readings, the message “BUF
CLEARED” is briefly displayed and the instrument returns to the normal measurement
state.
TRACe:CLEar:AUTO — With auto-clear enabled, the buffer will automatically clear
when the storage process starts. When disabled, readings will append to old readings in
the buffer until the buffer becomes full (450,000 readings) or the storage process is
stopped. Disabling auto-clear automatically sets the buffer size to 450,000.
e.
TRACe:FREE?
Query status of storage memory
Returns two values separated by commas. The first value indicates, in bytes, memory
available for storage, while the second value indicates the number of bytes being used
for stored readings.
2701-900-01.book Page 10 Wednesday, August 3, 2011 9:43 AM
Summary of Contents for 2701
Page 344: ...12 CommonCommands 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 366: ...15 SCPIReferenceTables 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 393: ...A Specifications 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 399: ...B Model7700ConnectionGuide 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 410: ...C StatusandErrorMessages 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 417: ...D SignalProcessing SequenceandDataFlow 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 430: ...E MeasurementConsiderations 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
Page 450: ...G KE2700InstrumentDriver Examples 2701 900 01 book Page 1 Wednesday August 3 2011 9 43 AM...
