Format:elements <Item List - Keithley 6220 Reference Manual

Model 6220/6221 Reference Manual
FORMat:ELEMents <item list>
Parameters
The specified elements are included in the data string in response to a read com-
mand.
not included in the returned data string.
Each element in the item list must be separated by a comma (e.g., send
FORM:ELEM READ, TST, UNIT, SOUR, AVOL, COMP, RNUM to include all ele-
ments in the string). The elements for the ASCii format are shown in
To include all the data elements, the ALL parameter can be used. To include all
elements, send FORM:ELEM ALL. To include only the default elements (READing
and TSTamp), use the DEFault parameter as follows: FORM:ELEM DEF.
Reading (READ) – The returned reading is for Delta, Pulse Delta (6221), or
Differential Conductance. An overflow reading is returned as +9.9E37. When a
specified data element has invalid data associated with it, NAN (Not A Number)
will be the response. NAN is returned as +9.9E37.
Timestamp (TST) – Timestamp references the returned data string to a point in
time. The timestamp operates as a timer that starts at zero seconds when the
delta test is started. The first delta reading is timestamped at zero seconds.
For buffer readings, timestamp can be referenced to the first reading stored in the
buffer (absolute format), which is timestamped at 0 seconds or to the time
between each stored reading (delta format). The TRACe:TSTamp:FORMat com-
mand is used to select the timestamp format (see
Units (UNIT) – The available measurement units are shown in
reading from the Model 2182A is in volts. With one of the other measurement
units selected (Ω, W, or S), the Model 6221 performs the appropriate calculation to
convert the voltage reading to ohms, watts, or siemens.
From the front panel, a Pulse Delta reading can be expressed and displayed as an
average power reading or a peak power reading. When Pulse Delta power is read
using remote programming, the returned UNITs element does not make the distinc-
tion between average and peak. Use the UNIT:POWer? command (see
to determine if the power reading is peak or average.
Details on selecting
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READing
TSTamp
UNITs
RNUMber
SOURce
COMPliance = State of compliance
AVOLtage
ALL
DEFault
"Read commands" are covered on
"Measurement
Return to
DISPlay, FORMat, and SYSTem Key-Press Codes 13-7
= Reading (Delta, Pulse Delta, or Differential
Conductance)
= Timestamp
= Measurement units
= Reading number
= Current source level
= Average voltage (Differential Conductance)
= Include all of the above elements
= Includes READing and TSTamp only
page 5-15. Elements not specified are
Section
units" are provided on
Section 13 topics
Figure 13-1.
6).
Figure 13-1. The
Table 5-1)
page 5-16.