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RE: Driver to control Keithley 3706A with visual basic application using ethernet cable
For basic communication over LAN, you can use raw sockets or you could obtain a VISA layer from Tek or NI, etc.
The IVI driver for 3706A contains the NI VISA runtime and leverages that for the communication.
There are some .NET examples distributed with the IVI driver.
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RE: Problema sulla misura degli avvolgimenti di piccoli motori trifasi
Can you tell us which specific DMM model this is?
Your 37 ohm motor winding is also a big inductor. Do you have estimate for the L value?
The ohms function is trying to apply a current and measure the V.
When the current is applied, the inductor will cause: V = L * dI/dt
If this causes max V for the ohms range, I can imagine poor outcomes.
If you have DMM6500, try the diode test function with different current levels. Any of those stable with your coil?
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RE: DMM6500 display becomes non-functional during certain USB controlled operations
Check your firmware level against what is available for it (1.7.14 now).
I wonder what commands are in use. If doing a fast trigger model operation, I can envision that front panel processing might slow down.
How do you resolve the freezing? -
RE: DMM6500
The DMM6500 can receive ASCII commands on the LAN. The PLC needs a raw socket connection on port 5025. -
RE: External trigger of Keithley 2182A
Check out the User Manual on Trigger Link.
Also section on stepping and scanning for an idea of how to handshake with external current source. -
RE: 2636B can't write test data to computer file
When running this Lua code on the 2636B, the only file system available is the USB drive on front panel. You need to insert a FAT32 formatted USB drive into the port.
I think instead you are wanting to put the information to the HDD of the computer, right? -
RE: unable to view front panel
In your document, it looks like two different tests were defined.
The 2604B contains two SMU. You just need some sweeps.
Take a look at KickStart IVC if you don’t want to write code.
Or get our free Test Script Builder or TSP Toolkit.
There are samples with TSB.
Test Script Builder
With these you can execute sweeps and copy/paste data to Excel.
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RE: [KXIC] Get error message from KXCI
An update: with version 1.13 of Clarius software for the 4200A-SCS, there are now KXCI commands for error retrieval and error clear.
Visit tek.com and download and apply updated Clarius for 4200A-SCS.
:ERROR:LAST:CLEAR
:ERROR:LAST:GET
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RE: How to get multiple values using Python and TSP
The printbuffer() can take multiple buffer elements:
printbuffer(index1, index2, defbuffer1.readings, defbuffer1.relativetimestamps)
This well result in comma delimited reading, time, reading, time, etc according to the index values.
The receiving code will need to parse it. -
RE: Low current measurement with Keithley 6485
If the ohms of the sample are very large, the RC time constants can be surprisingly long. Minutes or hours is not out of question.
In these cases, it might be sufficient to define a procedure where you take the measurement after XX time of electrification. Such a consistent method would allow comparison of sample A to sample B, etc.
Unrelated: you may want to consider some shielding for the setup. With connections in open air, results are susceptible to EMI and charged particles from air. Simply walking past the setup can be reflected on the picoammeter.
Low level measurements handbook