Control Auto Zero; State <Name; Select Power Line Frequency Setting; Lfrequency <Freq - Keithley 2500 User Manual

17-82 SCPI Command Reference

Control auto zero

STATe <name>
:SYSTem:AZERo:STATe <name>
Parameters
Query
Description

Select power line frequency setting

LFRequency <freq>
:SYSTem:LFRequency <freq>
Parameters
Query
Description

Error queue

NOTE

[:NEXT]?

:SYSTem:ERRor[:NEXT]?
Description
NOTE
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<name> = ON
OFF
:STATe?
This command is used to enable or disable auto zero, or to force an
immediate 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. Note that both channels
are affected by this command.
<freq> = 50
60
:LFRequency?
Use this command to manually select the line frequency setting (50 or
60Hz).
See Section 14 for details on the error queue.
As error and status messages occur, they are placed in the error queue.
The error queue is a first-in, first-out (FIFO) register that can hold up to
10 messages. After sending this command and addressing the Model
2500 to talk, the oldest message is sent to the computer and is then
removed from the queue.
The :STATus:Queue? command performs the same function as
:SYSTem:ERRor[:NEXT]?. See
Models 2500 and 2502 User's Manual
Control auto zero
Enable auto zero
Disable auto zero
Query state of auto zero
Select line frequency
50Hz setting
60Hz setting
Query line frequency selection.
Read oldest error (code and message)
"STATus subsystem," page 17-78.