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Keysight E1412A Digital Multimeter User Guide
Multimeter Command Reference
FETCh?
FETCh?
The
FETCh?
command retrieves measurements stored in the module's internal
memory by the most recent
INITiate
command and places them in the output
buffer. This command is most commonly used with
CONFigure
.
Subsystem Syntax
FETCh?
Comments
Execute
INITiate
before sending the
FETCh?
command to place the multimeter in
the wait-for-trigger state. If the multimeter has not taken any data (i.e.,
if
INITiate
has not been executed), or if settings have been altered since the last
FETCh?
(i.e., changing function or range), the “Data corrupt or stale” error will be
generated.
-
Readings sent to the output buffer can consist of two different lengths
(bytes or characters) in Real ASCII format:
1.23456E
12
LF
or
1.234567E
12
LF
-
Each measurement is terminated with a Line Feed (
LF
). The GPIB
End-or-Identify (EOI) signal is sent with the last byte transferred. If multiple
measurements are returned, the measurements are separated by commas
and EOI is sent only with the last byte. For example:
1.23456E
12
LF
,
1.234567E
12
LF
,
1.23456E
12
LF EOI
-
The Multimeter's internal memory stores 512 readings maximum.
-
Related Commands:
CONFigure
,
INITiate
,
READ?
-
*RST
Condition: Executing
FETCh?
after a
*RST
generates error “Data
corrupt or stale” (
*RST
places the multimeter in the idle state).
Example
-
Transferring Stored Readings to Output Buffer
dimension array
Dimension computer array to store
100 readings.
If you do not alter settings, you could “FETCh?” the same data
over and over again without error.
Summary of Contents for E1412A
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