17-50 SCPI Command Reference Models 2500 and 2502 User’s Manual
TRACe data elements
TRACe <item list>
:FORMat:ELEMents:TRAce <item list> Specify data elements for buffer
Parameters <item list> = CURRent[1] Includes channel 1 current reading
CURRent2 Includes channel 2 current reading
CALCulate1 Includes CALC1 element
CALCulate2 Includes CALC2 element
CALCulate3 Includes CALC3 element
CALCulate4 Includes CALC4 element
CALCulate5 Includes CALC5 element
CALCulate6 Includes CALC6 element
CALCulate7 Includes CALC7 element
TIME Includes timestamp
STATus Includes status information
ALL Includes all data elements
DEFault Includes only CURR1 and CURR2
NOTE Each item in the list must be separated by a comma (i.e., CURR1, CALC2,
TIME).
Query :TRACe? Query elements in data string
Description This command is used to specify the elements to be recalled from the
data store buffer (see “TRACe subsystem,” page 17-87). You can specify
from one to all 11 elements, or use ALL to specify all elements. Each
element in the list must be separated by a comma (,). These elements are
explained as follows:
NOTE An overflow reading reads as +9.9E37.
CURRent[1] — This element provides the channel 1 current reading. If
no reading is available, the NAN (not a number) value of +9.91e37 is
used.
CURRent2 — This element provides the channel 2 current reading. If
no current reading is available, the NAN (not a number) value of
+9.91e37 is used.
CALCulate1 ... CALCulate7 — These elements include the result of the
CALC1 through CALC7 calculations. If no value is available, the NAN
(not a number) value of +9.91e37 is used.
TIME — This element includes the timestamp value. See “Data ele-
ments,” page 17-46, for complete description.
STATus — This element includes the 24-bit status word. See “Data ele-
ments,” page 17-46, for a complete description.
ALL — This parameter includes all CURR, CALC, TIME, and STAT
elements.
DEFault — This parameter includes only the CURRent[1] and
CURRent2 elements.
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