Set Measurement Speed - Keithley 6430 Instruction Manual

17-60 SCPI Command Reference

Set measurement speed

:NPLCycles <n>
[:SENSe[1]]:CURRent[:DC]:NPLCycles <n>
[:SENSe[1]]:VOLTage[:DC]:NPLCycles <n>
[:SENSe[1]]:RESistance:NPLCycles <n>
Parameters
Query
Description
Configure and control filters
NOTE
:AUTO <b>
[:SENSe[1]]:AVERage:AUTO <b>
Parameters
Query
Description
<n> = 0.01 to 10
DEFault
MINimum
MAXimum
:NPLCycles?
:NPLCycles? DEFault
:NPLCycles? MINimum
:NPLCycles? MAXimum
This command is used to set the integration period (speed) for measure-
ments. NPLC (Number of Power Line Cycles) expresses the integration
period by basing it on the power line frequency. For example, for a PLC of
1, the integration period would be 1/60 (for 60Hz line power) which is 16.67
msec.
Note that this is a global command. Thus, if you set the speed for voltage
measurements to 10 PLC, then current and resistance will also set to 10
PLC.
Detailed information on the repeat, median and moving filters are provided in Sec-
tion 6,"Filters."
<b> = 0 or OFF
1 or ON
:AUTO?
With auto filter enabled, the instrument automatically selects filter settings
for current measurements. Heavy filtering is used for the low current ranges,
and less filtering as the current range increases. The auto filter settings are
listed in Tables 6-5, 6-6, and 6-7. For voltage measurements, auto filter sets
the repeat and moving count to one, and the median rank to zero. These set-
tings effectively disable the three filters.
When auto filter is disabled, the present count and rank settings for the three
filters are used for all measurement functions and ranges.
Set speed (PLC)
Set speed (PLC)
Set speed (PLC)
Power-line cycles per integration
10
0.01
10
Query programmed PLC value
Query *RST default PLC
Query minimum PLC
Query maximum PLC
Enable/disable auto filter
Disable auto filter
Enable auto filter
Query state of auto filter