Keithley 3700A Series Reference Manual

Section 11: TSP command reference Series 3700A System Switch/Multimeter Reference Manual
11-446 3700AS-901-01 Rev. D/June 2018
upgrade.previous()
This function returns to a previous version of the Series 3700A firmware.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function
No
Usage
upgrade.previous()
Details
This function allows you to revert to an earlier version of the firmware.
When you send this function, the instrument searches the USB flash drive in the front-panel USB port
for an upgrade file. If the file is found, the instrument performs the upgrade. An error is returned if an
upgrade file is not found.
Use this command with caution. Make sure your instrument can support the earlier version and that
there are no compatibility issues. Check with Keithley Instruments before using this command if you
have questions.
Also see
Upgrading the firmware (on page 7-5)
upgrade.unit() (on page 11-446)
upgrade.unit()
This function upgrades the Series 3700A firmware.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function
No
Usage
upgrade.unit()
Details
When upgrade.unit() is used, the firmware is only loaded if the version of the firmware is newer
than the existing version. If the version is older or at the same revision level, it is not upgraded.
When you send this function, the instrument searches the USB flash drive in the front-panel USB port
for an upgrade file. If the file is found, the instrument verifies that the file is a newer version. If the
version is older or at the same revision level, it is not upgraded, although it does request a reboot. If it
is a newer version, the instrument performs the upgrade. An error is returned if no upgrade file is
found.
Also see
upgrade.previous() (on page 11-446)
Upgrading the firmware (on page 7-5)

Keithley 3700A Series Specifications

General

Brand	Keithley
Model	3700A Series
Category	Multimeter
Language	English