Keithley 2001 Operator's Manual page 365

Defaults
Query
Description
Programming example
Parameters
Format
Defaults
Query
2001-900-01 Rev. K / August 2010
Power-up
*RST
:SYSTem:PRESet
:FEED? [BUFFER,] Query buffer feed
Short-form format: :trac:feed?
Response message: SENS1, CALC1 or NONE
This command is used to select the source of readings to be placed in the buffer. With SENSe[1] selected,
raw readings will be placed in the buffer when storage is performed. With CALCulate[1] selected,
calculated math readings (mX+b or PERCENT or NONE) will be placed in the buffer.
With NONE selected, no readings will be placed in the buffer when storage is performed over the bus.
10 OUTPUT 716; ":trac:feed calc; feed?"
20 ENTER 716; A$
30 PRINT A$
40 END
Line 10 Two commands in this program message; the first selects calculated math readings for the
buffer, and the second queries the buffer feed.
Line 20 Addresses the Model 2001 to talk.
Line 30 Displays the buffer feed (CALC1).
:[PERCent] [BUFFER,] <n>
:
:AMOunt:[PERCent] [BUFFER,] <n>
<n> = 0 to 100
:trac:feed:pret:amo <n>
Power-up
*RST
:SYSTem:PRESet
:[PERCent]? [BUFFER,]
Short-form format: :trac:feed:pret:amo?
Response message: 0 to 100 (%)
NONE
No effect
No effect
Specify percent of pre-trigger readings
% of buffer for pre-trigger readings
50%
No effect
No effect
IEEE-488 Reference
4-207