Keithley 2461 Reference Manual

Section
8: TSP command reference Model 2461 Interactive SourceMeter® Instrument
Reference Manual
8-76 2461-901-01 A/November 2015
file.usbdriveexists()
This function detects if a USB flash drive is inserted into the front-panel USB port.
Type TSP-Link accessible
Affected by Where saved Default value
Function
No
Usage
driveInserted = file.usbdriveexists()
driveInserted
0: No flash drive is detected
1
: Flash drive is detected
Details
You can call this command from a script to verify that a USB flash drive is inserted before attempting
to write data to it.
Example
print(file.usbdriveexists())
If the USB flash drive is not inserted in the USB
port on the front panel, this returns
0
.
Also see
None
file.write()
This function writes data to a file on the USB flash drive.
Type TSP-Link accessible
Affected by Where saved Default value
Function
No
Usage
file.write(fileNumber, string)
fileNumber
The file number returned from the file.open() function to write
string
The data to write to the file
Details
The file.write() function may buffer data; it may not be written to the USB flash drive
immediately. Use the file.flush() function to immediately write buffered data to the drive.
You must use the file.close() command to close the file after writing.

Keithley 2461 Specifications

General

Maximum Current	7 A
Power	100 W
Resolution	6.5 digits
Source Measure Unit (SMU)	Yes
DC Voltage	100 V
Maximum Voltage	100 V
Display	5-inch capacitive touchscreen
Connectivity	USB, GPIB
Software	TSP
DC Current	7 A
Current Source Range	0 to 7 A
Voltage Measurement Range	100 mV to 100 V
Current Measurement Range	10 nA to 7 A
Voltage Measurement Resolution	100 nV