Control Auto Zero - Keithley 6430 Instruction Manual

17-92 SCPI Command Reference

Control auto zero

:STATe <name>
:SYSTem:AZERo:STATe <name>
Parameters
Query
Description
Control NPLC caching
:CACHing
:SYSTem:AZERo:CACHing[:STATe] <b>
:SYSTem:AZERo:CACHing:REFResh
:SYSTem:AZERo:CACHing:RESet
:SYSTem:AZERo:CACHing:NPLCycles?
Parameters
Query
Description
<name> = ON
OFF
ONCE
:STATe?
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.
<b> = 1 or ON
0 or OFF
[:STATe]?
:NPLCycles?
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.
Control auto zero
Enable auto zero
Disable auto zero
Force immediate auto zero update
Query state of auto zero
Enable/disable NPLC caching
Update NPLC cache values
Clear NPLC values from cache
Return list of NPLC values
Enable NPLC caching
Disable NPLC caching
Query state of NPLC caching
Return list of NPLC values stored in cache
from oldest to newest.