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MEASurement
Function
In addition to the subsystems of the in
-
strument model, which controls the in
-
strument functions, SCPI has
signal-oriented functions to obtain mea
-
surement results. This group of MEASure
functions has a different level of compati
-
bility and flexibility. The parameters used
with commands from the MEASure
group describe the signal you are going to
measure. This means that the MEASure
functions give compatibility between in
-
struments, since you don’t need to know
anything about the instrument you are us
-
ing. See Figure 5-3.
n
MEASure?
This is the most simple command to use,
but it does not offer much flexibility. The
MEASure? query lets the counter config
-
ure itself for an optimal measurement,
start the data acquisition, and return the
result.
n
CONFigure; READ?
The CONFigure command makes the
counter choose an optimal setting for the
specified measurement. CONFigure
may cause any device setting to change.
Instrument Model
MEASurement Function 5-5
10MHz
clock
A
B
C
E
÷2
1
2
3
4
5
6
7
GPIB
INPut1
INPut2
INPut4
SENSe
CALCulate
MEMory
OUTPut
FORMat
DISPlay
TRIGger
READ?
CONFigure
MEASure?
FETch?
Figure 5-3 CNT-8X Measurement Function
Note that Input B (channel 2) is not available on PM6685.