User`s guide

53220A/53230A User’s Guide 77
53220A/53230A Measurements 3
The MEASure and CONFigure Commands
Each time the counter takes a measurement it does so from a configuration
based on multiple parameters. The easiest and most common starting point
for setting these parameters programmatically is using commands within the
CONFigure and MEASure subsystems. These commands are considered
“high-level” commands as multiple counter parameters are set or defaulted
from a single command. “Low-level” commands are those within other sub-
systems (i.e. INPut, TRIGger, SENSe) that allow you to change a parameter
value from that set, or defaulted to, using CONFigure or MEASure.
Executing commands from the CONFigure and MEASure subsystems is equiv-
alent to setting parameters individually using the commands/subsystems
shown in Table 3-2.
Table 3-2. Counter Configuration using CONFigure and MEASure
Parameter CONFigure/MEASure Setting
Low-Level Command/Subsystem
Input
range, low-pass filtering, coupling, imped-
ance and noise rejection are unchanged from
previous or their power-on settings.
INPut{1|2}:RANGe
INPut{1|2}:FILTer
INPut{1|2}:COUPling
INPut{1|2}:IMPedance
INPut{1|2}:NREJect
Measurement Mode
AUTO for frequency, frequency ratio, average
period, PRF, or PRI measurements.
Unchanged for all others.
SENSe:FREQuency:MODE
Trigger source IMMediate
TRIGger:SOURce
Trigger slope NEGative
TRIGger:SLOPe
Trigger delay 0.0 seconds
TRIGger:DELay
Trigger count 1 trigger
TRIGger:COUNt
Sample count
1 sample
SAMPle:COUNt