17-82 SCPI Command Reference Models 2500 and 2502 User’s Manual
Control auto zero
STATe <name>
:SYSTem:AZERo:STATe <name> Control auto zero
Parameters <name> = ON Enable auto zero
OFF Disable auto zero
Query :STATe? Query state of auto zero
Description 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.
Select power line frequency setting
LFRequency <freq>
:SYSTem:LFRequency <freq> Select line frequency
Parameters <freq> = 50 50Hz setting
60 60Hz setting
Query :LFRequency? Query line frequency selection.
Description Use this command to manually select the line frequency setting (50 or
60Hz).
Error queue
NOTE See Section 14 for details on the error queue.
[:NEXT]?
:SYSTem:ERRor[:NEXT]? Read oldest error (code and message)
Description 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.
NOTE The :STATus:Queue? command performs the same function as
:SYSTem:ERRor[:NEXT]?. See “STATus subsystem,” page 17-78.
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