To Next Page

To Previous Page

Section 14: SCPI command reference Model 6517B Electrometer Reference Manual

14-62 6517B-901-01 Rev. C / August 2015

:AUTO |ONCE

This command is used to control auto NPLC for volts, amps, ohms, and coulombs.

Usage

[:SENSe[1]]:VOLTage[:DC]:NPLCycles:AUTO |ONCE

[:SENSe[1]]:CURRent[:DC]:NPLCycles:AUTO |ONCE

[:SENSe[1]:RESistance:NPLCycles:AUTO |ONCE

[:SENSe[1]]:CHARge:NPLCycles:AUTO |ONCE

:AUTO?

 1 or ON

 0 or OFF

 ONCE

Details

These commands are used to enable or disable auto NPLC for the specified measurement function.

With auto NPLC enabled, the instrument automatically optimizes the NPLC value for the present

resolution setting. Display resolution (on page 5-18) provides the integration times for SET-BY-RSLN

(AUTO).

The ONCE parameter is analogous to a momentary toggle switch. When :AUTO ONCE is sent, auto

NPLC turns on momentarily and then disables. While enabled, it automatically selects the appropriate

value as summarized in the tables. When auto NPLC disables, NPLC remains at the selected value.

:NPLC:AUTO is coupled to the command that manually sets the NPLC value (:NPLC <n>). When

auto NPLC is enabled, the parameter value for :NPLC <n> changes to the automatically selected

NPLC value. Thus, when auto NPLC is disabled, NPLC remains at the automatically selected value.

Also, a valid NPLC value sent using the :NPLC <n> command disables auto NPLC.

Auto NPLC is also coupled to auto aperture. Enabling or disabling auto NPLC also enables or

disables auto Aperture. Also, a valid aperture value sent using the :APERture command disables

auto NPLC.

Also see

None

:RANGe commands

Volts, amps, and coulombs ranges.

Keithley 6517B Reference Manual

Other manuals for Keithley 6517B