6: SCPI command reference Model 2450 Interactive SourceMeter® Instrument
6-104 2450-901-01 Rev. B/September 2013
:SYSTem:GPIB:ADDRess
This command contains the GPIB address.
Type Affected by Where saved Default value
Usage
:SYSTem:GPIB:ADDRess <n>
:SYSTem:GPIB:ADDRess?
The GPIB address of the instrument (0 to 30)
Details
The address can be set to any address value between 0 and 30. However, the address must be unique in the
system. It cannot conflict with an address that is assigned to another instrument or to the GPIB controller.
A new GPIB address takes effect when the command to change it is processed. If there are response messages
in the output queue when this command is processed, they must be read at the new address.
If command messages are being queued (sent before this command has executed), the new settings may take
effect in the middle of a subsequent command message, so care should be exercised when setting this attribute
from the GPIB interface.
You should allow ample time for the command to be processed before attempting to communicate with the
instrument again. After sending this command, make sure to use the new address to communicate with the
instrument.
*RST does not affect the GPIB address.
Example
:SYSTem:GPIB:ADDRess 26
:SYSTem:GPIB:ADDRess?
Sets the GPIB address and reads the address. Output:
2.600000e+01
Also see
GPIB setup (on page 2-46)
:SYSTem:LFRequency?
This query returns the line frequency that was automatically detected.
Type Affected by Where saved Default value
Query only Not applicable Not applicable Not applicable
Usage
:SYSTem:LFRequency?
Details
The instrument automatically detects the power line frequency (either 50 Hz or 60 Hz) at each power-up. This
detected line frequency is used for aperture (NPLC) calculations.
Example
Check the line frequency.
Also see
None
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