High Voltage SourceMeter Instrument Reference Manual Section 15:
Frequently asked questions
2470-901-01 Rev. A / May 2019 15-5
What to do if the GPIB controller is not recognized?
If the hardware is not recognized by the computer:
1. Check for newer drivers on the vendor’s website.
2. Check that the drivers are valid for the operating system you have and any updates that might
be
nec
essary. This information is typically found in the readme file that comes with the drivers.
3. Follow vendor instructions on updating drivers.
If it is still not recognized, you can try a different computer using a different operating system to rule
out operating system issues.
If this does not resolve the issue, contact the vendor of the GPIB controller for assistance.
I'm receiving GPIB timeout errors. What should I do?
If your GPIB controller is recognized by the operating system, but you get a timeout error when you
try to communicate with the instrument, check the following:
1. Confirm that the GPIB address you assigned to the instrument is unique and between 0 to 30. D
o
not
use 0 or 21 because they are common controller addresses.
2. Check cabling connections. GPIB cables are heavy and can fall out of the connectors if they ar
e
not
screwed in securely.
3. Substitute cables to verify cable integrity. For example, if you can send and receive ASCII text,
but you cannot do a binary transfer, check your program and the decoding of the binary data. If
that does not resolve the problem, try another cable. ASCII text only uses seven data lines in the
c
able; the binary transfer requires all eight lines.
How do I change the command set?
You can change the command set that you use with the 2470. The remote command sets that are
available include:
• SCPI: An instrument-specific language built on the SCPI standard.
• TSP: A scripting programming language that contains instrument-specific control commands that
can be executed from a stand-alone instrument. You can use TSP to send individual commands
or use it to combine commands into scripts.
If you change the command set, reboot the instrument.
You cannot combine the command sets.
As delivered from Keithley Instruments, the 2470 is set to work with the SCPI command set.
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