To Next Page

To Previous Page

17-92 SCPI Command Reference

Control auto zero

:STATe <name>

:SYSTem:AZERo:STATe <name> Control auto zero

Parameters <name> = ON Enable auto zero

OFF Disable auto zero

ONCE Force immediate auto zero update

Query :STATe? Query state of auto zero

Description This command is used to enable or disable auto zero, or to force an immedi-

ate one-time auto zero update if auto zero is disabled. When auto zero is

enabled, accuracy is optimized. When auto zero is disabled, speed is

increased at the expense of accuracy.

Control NPLC caching

:CACHing

:SYSTem:AZERo:CACHing[:STATe] <b> Enable/disable NPLC caching

:SYSTem:AZERo:CACHing:REFResh Update NPLC cache values

:SYSTem:AZERo:CACHing:RESet Clear NPLC values from cache

:SYSTem:AZERo:CACHing:NPLCycles? Return list of NPLC values

Parameters <b> = 1 or ON Enable NPLC caching

0 or OFF Disable NPLC caching

Query [:STATe]? Query state of NPLC caching

:NPLCycles? Return list of NPLC values stored in cache

from oldest to newest.

Description NPLC caching speeds up source memory sweeps by caching A/D reference

and zero values. When SYST:AZER:CACH is enabled, the A/D reference

and zero values will be saved for up to the 10 most recent [:SENSe[1 ]]

:VOLTage[:DC]:NPLCycles, [:SENSe[1 ]]:CURRent[: DC]:NPLCycles, or

[:SENSe[1]]:RESistance:NPLCycles settings. Whenever the integration rate

is changed via an NPLC command, user setup recall (*RCL), or a source

memory recall (:SOUR:MEM command or during a source memory

sweep), NPLC caching will occur. If the integration rate is already stored in

the cache, the stored reference and zero values are recalled and used. Other-

wise, a reference and zero value are acquired and stored in the cache. If

there are already 10 NPLC values stored, the oldest one will be overwritten

by the newest one.

Keithley 6430 User Manual

Other manuals for Keithley 6430