keithley 2182 and Keithley 2400 Trigger link

[Runge]

hi guys

Solved one problem regarding the 2400 and stuck in another.

I am trying to make delta measurements on the keithley 2182 while sourcing from the Keithley 2400. But for some odd readon I am getting "Query interminated" and "trigger deadlock " on the 2182. There is no masurement being made. The program is a near exact replica of the one given in 2182 manual , repeating it for your reference

 CALL SEND (7, “:syst:pres”, status%) ‘ 2182 - System preset ‘ defaults.
CALL SEND (7, “:trig:del 1”, status%) ‘ 2182 - 1sec delay.
CALL SEND (7, “:sens:volt:delta on”, status%) ‘ 2182 - Enable Delta.
CALL SEND (7, “:syst:faz off”, status%) ‘ Disable Front Autozero to ‘ double Delta speed.
CALL SEND (7, “:trig:sour ext”, status%) ‘ 2182 - External triggering.
CALL SEND (7, “:trac:poin 3”, status%) ‘ 2182 - Buffer size 3.
CALL SEND (7, “:trac:feed:cont next”, status%) ‘ 2182 - Enable buffer.

CALL SEND (24, “*rst”, status%) ‘ SM - RST defaults.

CALL SEND (24, “:trig:sour tlin”, status%) ‘ SM - Select trigger link.
CALL SEND (24, “:trig:dir sour”, status%) ‘ SM - Enable source bypass.
CALL SEND (24, “:trig:outp sour, status%) ‘ SM - Output trigger after ‘ source.
CALL SEND (24, “:trig:coun 6”, status%) ‘ SM - Trig count 6.
CALL SEND (24, “:sour:func curr”, status%) ‘ SM - Source current.
CALL SEND (24, “:func ‘volt’”, status%) ‘ SM - Measure voltage
CALL SEND (24, “:volt:nplc 0.01, status%) ‘ SM - Fast measurements
CALL SEND (24, “:sour:list:curr 10e-6, -10e-6, 20e-6, -20e-6, 50e-6, -50e-6”,status%) ‘ SM - Current list values
CALL SEND (24, “:outp on”, status%) ‘ SM - Turn output on.
CALL SEND (24, “:sour:curr:mode list”, status%) ‘ SM - Enable list mode.
CALL SEND (24, “:init”, status%) ‘ SM - Start sweep.

My Program is attached below. can you suggest what is the problem. This is the first time I am using the trigger link feature in 2182 and 2400!!

[Mathan]

As in your other thread, why you are not interested in using LabVIEW drivers? They are handy and simple enough to complete your requirements.

[Runge · Accepted solution]

Hi all

Problem nearly solved

I  am attaching the file that I got from Keithley's website .

Since I have to modify to incorporate the magnetic field variation. it is a bit messy. But still it does the job and works perfectly fine.

It stands as a good basis for triggering any Keithley SMU using Keithley 2182 using the trigger link line

Runge

PS: Mathan

I have written a lot of program for Keithley 6430  Keithley 236 etc in the past couple of years. But the VISA drivers always had a problem. Since I had encountered a lot of em in the past, I have swtiched over to GPIB SCPI programming where u r in control of the code and can troubleshoot easily.

Anyways for starters the VISA drivers are a wonderful tool

Thanks for your tip