Nrdgs - Agilent Technologies 3458A User Manual

NRDGS

Examples

NRDGS

Syntax
206 Chapter 6 Command Reference
interaction occurs between NPLC (or APER) when you specify resolution as
follows:
•
If you send the NPLC (or APER) command before specifying resolution, the
multimeter satisfies the command that specifies greater resolution (more
integration time).
•
If you send the NPLC (or APER) command after specifying resolution, the
multimeter uses the integration time specified by the NPLC (or APER)
command, and any previously specified resolution is ignored.
•
The more common approach is the first of the two shown above; i.e., the NPLC
command is executed first to establish normal mode noise rejection (NMR),
then %_resolution is specified with a function or RANGE command. This
ensures you will have NMR and at least the required resolution.
•
Query Command. The NPLC? query command returns the integration time (in
units of PLCs) used by the A/D converter. Since the integration time can be set
by the APER, NPLC, or RES command, or the %_resolution parameter of a
function command or the RANGE command, it is possible for the NPLC?
command to return a different number of PLCs than was last specified by the
NPLC command.
•
Related Commands: APER, FUNC, LFREQ, RES
In the following program, line 10 sets the number of PLCs to minimum and allows
%_resolution in line 20 to control the resolution. The resolution specified by line
20 is 100µV.
10 OUTPUT 722;"NPLC 0"
20 OUTPUT 722;"DCV 6,.00167"
30 END
In the following program, line 10 sets the number of PLCs to 1000. This
corresponds to maximum resolution and prevents %_resolution in line 20 from
affecting the measurement. The requested resolution from line 20 is 10m
However, because of line 10, the actual resolution is 100µ
10 OUTPUT 722;"NPLC 1000"
20 OUTPUT 722;"OHM 1E3,.001"
30 END
Number of Readings. Designates the number of readings taken per trigger and
the event (sample event) that initiates each reading.
NRDGS [count][,event]
count
!SETS PLCS TO MINIMUM
!DC VOLTS, 6V MAX, 1OOµV RESOLUTION
!SETS PLCS TO MAXIMUM
!SELECTS 2-WIRE OHMS, 1k
W
.
W
.
9 MAX INPUT