Keithley 2461, Reference Manual, Page: 109 / 1109

Section 2: General operation Model 2461 Interactive SourceMeter® Instrument Reference Manual
2-82 2461-901-01 A/November 2015
To view system information using SCPI commands:
To retrieve the manufacturer, model number, serial number, and firmware version, send the
command:
*IDN?
To read the line frequency, send the command:
SYStem:LFRequency?
The firmware build, memory available, and factory calibration date are not available when using SCPI
commands.
To get information about how many times autocalibration has been done, autocalibration
temperature, and last autocalibration dates, send the following commands:
:ACAL:COUNt?
:ACAL:LASTrun:TEMPerature:INTernal?
:ACAL:LASTrun:TEMPerature:DIFFerence?
:ACAL:LASTrun:TIME?
To view system information using TSP commands:
To read the model number, send the command:
print(localnode.model)
To read the serial number, send the command:
print(localnode.serialno)
To read the firmware version, send the command:
print(localnode.version)
To read the line frequency, send the command
print(localnode.linefreq)
To get information about how many times autocalibration has been done, autocalibration
temperature, and last autocalibration dates, send the following commands:
print(acal.count)
print(acal.lastrun.internaltemp)
print(acal.lastrun.tempdiff)
print(acal.lastrun.time)
The factory calibration date is not available with TSP commands.
You can also create user-defined strings to store custom, instrument-specific information in the
instrument, such as department number, asset number, or manufacturing plant location. See the TSP
command reference (on page 8-1) for detail about the
userstring
functions.