Posted Wed, 12 Oct 2022 17:38:35 GMT by Brodeur, Julien
Hello,

I would like to be able to produce an output trigger pulse for an external instrument while performing a voltage pulse train with the 2614b model.
Is this possible considering the 2614b model does not have a digital i/o or a TSP-Link ?

Thanks a lot,

Julien
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.  

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