Digital Multimeters (DMMs) and Precision DC Sources

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Keithley 2001- can´t mult. read and trigger

Hello People from NI forum.

I am having some problems with my Labview/Keithley programs and after trying exhaustively, I come to you and maybe you can help me to find out what is going wrong.

1- my multi-read.VI from Labview/keithley´s driver doens´t work properly! It takes a lot´s of time to take the measure and doesnt return plausible values. Have you ever had this problem with this or not? if someone´s VI work well, please send me!!!!!

2- I can´t manage to make the trigger between these two devices!( switch keithley 7002 and multimeter keithley 2001) the single-measure.VI works reasonable good so, I change all the configuration for both programs, as related in the manual, but both program stops! It is like waiting each others answer. did someone have success with this communication?

3- I tryed to run some codes direct to the machine but I don´t know if is there some kind of order to send the informations to GPIB. I tryied some times and I could´t make the program wait using SQR either; It was really complicated to me. I dont know either wether I put the * TRIG command to take the trigger and continue running the program.

 

I used the programs given by Keithley and NI to try to run this; simply configuring and trying to run both programs together .

I would be really grateful if someone could help me with this!

 

regards 

 

Leandro

 

ps- below, has the code that is sent to GPIB trough the programs, changed to make the trigger link:

 

(K7002)

*RST;*CLS;

:OPEN (@ 1!10,1!20);

:ARM:SOUR IMM;COUN 1;TCON:DIR ACC;

:ARM:LAY2:SOUR IMM;COUN INF;DEL 0.000000;

:ARM:LAY2:TCON:DIR ACC;

:TRIG:SOUR TLINK;COUN 9

;:TRIG:DEL 1.000000;TCON:PROT ASYN;ASYN:ILIN 1;OLIN 2;

:TRIG:TCON:DIR SOUR;

:SCAN (@ 1!10,1!20,1!30);

:INIT:CONT 0;CONT ON

 

(K2001)

:STAT:MEAS:EVEN?;

:ARM:COUN 1;SOUR IMM;TCON:DIR ACC;ASYN:ILIN 2;OLIN 1;

:ARM:LAY2:COUN 1;DEL 0.000000E+0;SOUR IMM;TIM 1.000000E+0;TCON:DIR ACC;ASYN:ILIN 2;OLIN 1;

:TRACE:FEED SENSE :TRACE:POIN 20 :TRIG:DEL 3;

:TRIG:COUN 1;DEL 0.000000E+0;SOUR IMM;TIM 1.000000E+0;TCON:DIR ACC;PROT ASYN;ASYN:ILIN 2;OLIN 1;

:STAT:MEAS:ENAB 32;

:*SRE 1

true? *TRG;/ false? (" ")

:*SRE 0;:DATA?

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Leandro,

 

Why don't you post this to the Keithley forum for Dmm's. I am sure someone there will help you.

By the way the US is celebrating Thanksgiving right now so don't expect an answer until Monday.

 

http://forum.keithley.com/phpBB3/index.php

 

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