User manual

2400 Series SourceMeter
®
User’s Manual SCPI Command Reference 18-49
one piece. The header (#0) can be read separately before the rest of
the string.
The number of bytes to be transferred can be calculated as follows:
Bytes=2+(Rdgs × 4) + 1
where 2 is the number of bytes for the header (#0).
Rdgs is the product of the number of selected data elements, arm
count, and trigger count.
4 is the number of bytes for each reading.
1 is the byte for the terminator.
For example, assume the SourceMeter is configured to perform 10
source-measure operations and send the 10 current measurements
to the computer using the binary format.
Bytes = 2 + (10 x 4) + 1
= 43
Data elements
ELEMents <item list>
:FORMat:ELEMents [SENSe[1]] <item list> Specify data elements for data string
Parameters <item list> = VOLTageIncludes voltage reading
CURRentIncludes current reading
RESistance Includes resistance reading
TIMEIncludes timestamp
STATusIncludes status information
NOTE Each item in the list must be separated by a comma (i.e., :ELEMents, VOLT-
age, CURRent, RESistance).
Query :ELEMents? Query elements in data string
This command is used to specify the elements to be included in the
data string in response to the following queries:
:FETCh?
:READ?
:MEASure?
:TRACe:DATA?
You can specify from one to all five elements. Each element in the list
must be separated by a comma (,). These elements (shown in
Figure
18-1) are explained as follows:
NOTE An overflow reading reads as +9.9E37.
VOLTage — This element provides the voltage measurement or the
programmed voltage source reading. If sourcing voltage and mea
-
suring voltage, this element will provide the voltage measurement
(measure reading takes priority over source reading). If voltage is not