A: Maintenance Model 2461 Interactive SourceMeter® Instrument
A-4 2461-901-01 A/November 2015
From the front panel
Do not turn off power or remove the USB flash drive until the upgrade process is complete.
You can upgrade or downgrade the firmware from the front panel or from the virtual front panel.
Refer to Using the Model 2461 virtual front panel (on page 2-77) for information.
From the front panel or virtual front panel:
1. Copy the firmware file (.upg file) to a USB flash drive.
2. Verify that the firmware file is in the root subdirectory of the flash drive and that it is the only
firmware file in that location.
3. Disconnect any input and output terminals that are attached to the instrument.
4. Turn on instrument power.
5. Insert the flash drive into the USB port on the front panel of the instrument.
6. From the instrument front panel, press the MENU key.
7. Under System, select Info/Manage.
8. To upgrade to a newer version of firmware, select Upgrade to New.
9. To return to a previous version of firmware, select Downgrade to Older.
10. If the instrument is controlled remotely, a message is displayed. Select Yes to continue.
11. When the upgrade is complete, reboot the instrument.
A message is displayed while the upgrade is in progress.
Using SCPI
There are no SCPI commands that you can use to upgrade the firmware. To upgrade the firmware,
you must either use the front panel, virtual front panel, or switch the command set to TSP.
To use the front panel to upgrade the firmware, see From the front panel (on page A-4).
Do not turn off power or remove the USB flash drive until the upgrade process is complete.
If you need to upgrade the firmware from a remote interface and you are using a SCPI command set:
1. Copy the firmware upgrade file to a USB flash drive.
2. Verify that the upgrade file is in the root subdirectory of the flash drive and that it is the only
firmware file in that location.
3. Disconnect the input and output terminals that are attached to the instrument.
4. Power on the instrument.
5. Change the command set to TSP by sending the command:
*LANG TSP
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