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Direct Data storage from 2657

Model 2657A
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Joined: November 12th, 2013, 2:52 am
Country: India

Direct Data storage from 2657

Post by ramyacs55 » November 12th, 2013, 10:02 pm


I need to store the buffer values of 2657A SMU into USB in either csv format or in excel format. What commands must I include in the script inorder to obtain the above.

Andrea C
Keithley Applications
Keithley Applications
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Joined: October 15th, 2010, 10:35 am
Country: United States

Re: Direct Data storage from 2657

Post by Andrea C » November 13th, 2013, 8:04 am


There is a utility function called savebuffer() in the nvmemory of the instrument.
Call it with something like:
savebuffer(smua.nvbuffer1, "csv", "my_file_name.csv")

Be sure that you have first inserted a USB thumb drive into the data port of the 2657A.

Alternately, you can customize your own implementation of these io.x methods for file I/O.

If you want to examine the source implementation of the savebuffer() function, you can get a source code listing by using the Instrument Console Window of Test Script Builder:
retrieve_savebuffer_script.PNG (13.69 KiB) Viewed 11321 times

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