Posted Wed, 12 Oct 2022 18:48:35 GMT by McKinney, Ty
The model 2604B/2614B/2634B are lower cost in the 26xx Keithley family and are without some features to their other relatives. Unfortunately, we don’t have any physical port externally to make a trigger. Software can be used with the edition of another instrument to send a trigger. I would take a look at KickStart if you are using other Keithley/Tektronix instruments for that trigger. Otherwise, you would need to make this custom.
Posted Sun, 16 Oct 2022 22:42:50 GMT by C, Andrea
Just expanding on the information provided.

Given that a Keithley SMU is likely to see a few decades of use for perhaps a lot of different tasks, the absence of digital IO for triggering with external equipment is one likely way you will wish you had the 2612B instead of 2614B.

However, there is still the ability to coordinate the SMU action with bus trigger or sending *TRG command to it after arming it for a task.

In the attached PDF, I provide a little more detail on it.
Posted Mon, 17 Oct 2022 14:10:22 GMT by Brodeur, Julien
Thank you for both for your answers. Basically what I need is to send an external output trigger to an instrument at the beginning of every pulse, for exemple, by using the SOURCE_COMPLETE_EVENT_ID trigger from the model. I don't think the *TRG command would work here.
 
Posted Mon, 17 Oct 2022 14:22:01 GMT by Brodeur, Julien
Concerning the LAN trigger, the receiving instrument needs a voltage signal for triggering so I am not sure that converting a trigger packet to a voltage signal is a good option. For now I am using the second channel of the Keithley to create a synchronized pulse with the first channel and sending this one the other instrument but this is not ideal.  
Posted Mon, 16 Oct 2023 16:30:36 GMT by Sanaur, Sébastien Associate Professor
Good evening,

I post on this talk because Ihave a similar issue.

Indeed, I apply a sinusoidal voltage signal to the smuB with a Keithley 2612B (please see attached TSP script).
So I would like to polarize a constant voltage to smuA and record the current (please see enclosed the schematic).
But I cannot recover the current from smu A with the 'printbuffer' (see attached TSP script).
I must be wrong about the addressing of the 'buffer'? (or something else?) Should I also 'trigger' smu A?
Can you help me to unblock this please?

Moreover, I would like to apply a frequency of up to 100 kHz. I have an AFG1022 signal generator (Tektronix) to apply the sinusoidal voltage (i.e replacing smuB).
But how to do the setup? and the connections to be setup? Should it be synchronized with the 2612B? or the computer control (i.e Python) should be enough to synchronize the 2 instruments? (for info, I already drive the AFG1022 by computer but cannot successfully record the i,v parameters...)
Could you also please guide me on these aspects of instrumentation development?

Thanking you for your time and support.

Best regards,

Sébastien

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