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.
Содержание 6430
Страница 26: ......
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Страница 78: ...2 14 Connections ...
Страница 98: ...3 20 Basic Source Measure Operation ...
Страница 138: ...5 30 Source Measure Concepts ...
Страница 156: ...6 18 Range Digits Speed and Filters ...
Страница 168: ...7 12 Relative and Math ...
Страница 176: ...8 8 Data Store ...
Страница 202: ...9 26 Sweep Operation ...
Страница 248: ...11 22 Limit Testing ...
Страница 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Страница 418: ...17 108 SCPI Command Reference ...
Страница 450: ...18 32 Performance Verification ...
Страница 477: ...A Specifications ...
Страница 489: ...B StatusandErrorMessages ...
Страница 498: ...B 10 Status and Error Messages ...
Страница 499: ...C DataFlow ...
Страница 503: ...D IEEE 488BusOverview ...
Страница 518: ...D 16 IEEE 488 Bus Overview ...
Страница 519: ...E IEEE 488andSCPI ConformanceInformation ...
Страница 523: ...F MeasurementConsiderations ...
Страница 539: ...G GPIB488 1Protocol ...
Страница 557: ......