Keithley 2700, User Manual, Page: 206 / 500

Model 2700 Multimeter/Switch System User’s Manual Buffer 6-9
Remote programming — buffer
NOTE
When readings are stored in the buffer by the TRACe command (or by front
panel data store operation), INIT and multi-sample READ? queries are locked
out. With readings in the buffer that were stored in that manner, you cannot use
the INIT or READ? command if sample count is >1 (error -225, out of memory).
NOTE
The measurement event register can be read to check when the buffer becomes G ,
H , I , or full. Status registers are covered in Section 11 .
Buffer commands
NOTE When measurements are performed, the readings are fed to other enabled
operations, including the Buffer.
Appendix D explains “Data flow (remote
operation),” page D-7 , and the commands used to read the buffer and buffer
statistics.
The commands to perform buffer operations are listed in Table 6-1 . Details on these
commands follow the table.
NOTE Optional command words and most queries are not included in Table 6-1 . The
unabridged tables for all SCPI commands are provided in Section 15 .
Table 6-1
Buffer commands
Command Description Default
1
Ref
SYSTem:TIME <hr, min, sec> Set clock time in 24-hour format. a
SYSTem:DATE <yr, mo, day> Set clock date; yr specified as 20xx. b
SYSTem:TSTamp:TYPE
<name>
Select timestamp; <name> = RELative or RTCLock. REL c
SYSTem:TSTamp:TYPE?
Query timestamp type that will be used for
the next buffer storage.
c
TRACe:TSTamp:TYPE?
Query timestamp type for readings presently in buffer.
c
TRACe:CLEar Clear the buffer immediately. d
TRACe:CLEar:AUTO <b> Enable/disable buffer auto-clear; <b> = ON or OFF. ON d
TRACe:FREE? Query bytes available and bytes in use. e
TRACe:POINts <NRf> Specify size of buffer; <NRf> = 2 to 55000. 100 f
TRACe:TSTamp:FORMat
<name>
Select timestamp format; <name> = ABSolute or
DELTa.
ABS g
TRACe:FEED <name> Select source of readings; <name> = SENSe[1],
CALCulate[1] or NONE.
CALC h