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17-46
SCPI Command Reference
During binary transfers, never un-talk the SourceMeter until after the data is
read (input) to the computer. Also, to avoid erratic operation, the readings of
the data string (and terminator) should be acquired in 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.
is the byte for the terminator.
For example, assume the SourceMeter is con
fi
gured to perform 10 source-
measure operations and send the 10 current measurements to the computer
using the binary format.
Bytes = 2 + (10
×
4) + 1
= 43
Data elements
:ELEMents <item list>
:FORMat:ELEMents [SENSe[1]] <item list>
Specify data elements for data string
Parameters
<item list> = VOLTage
Includes voltage reading
CURRent
Includes current reading
RESistance
Includes resistance reading
TIME
Includes timestamp
STATus
Includes status information
NOTE
Each item in the list must be separated by a comma (i.e., :ELEMents, VOLTage,
CURRent, RESistance).
Query
:ELEMents?
Query elements in data string
Description
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
fi
ve elements. Each element in the list must
be separated by a comma (,). These elements (shown in Figure 17-1) are
explained as follows:
NOTE
An overflow reading reads as +9.9E37.
Summary of Contents for 6430
Page 26: ......
Page 32: ......
Page 78: ...2 14 Connections ...
Page 98: ...3 20 Basic Source Measure Operation ...
Page 138: ...5 30 Source Measure Concepts ...
Page 156: ...6 18 Range Digits Speed and Filters ...
Page 168: ...7 12 Relative and Math ...
Page 176: ...8 8 Data Store ...
Page 202: ...9 26 Sweep Operation ...
Page 248: ...11 22 Limit Testing ...
Page 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Page 418: ...17 108 SCPI Command Reference ...
Page 450: ...18 32 Performance Verification ...
Page 477: ...A Specifications ...
Page 489: ...B StatusandErrorMessages ...
Page 498: ...B 10 Status and Error Messages ...
Page 499: ...C DataFlow ...
Page 503: ...D IEEE 488BusOverview ...
Page 518: ...D 16 IEEE 488 Bus Overview ...
Page 519: ...E IEEE 488andSCPI ConformanceInformation ...
Page 523: ...F MeasurementConsiderations ...
Page 539: ...G GPIB488 1Protocol ...
Page 557: ......