External Trigger for Keithly 2000

[eric_m.]

Hi All,

I have 8 Keithly DMMs connected to a GPIB bus and I would like to read the data back as quickly as
the Keithly's can sample (0.1 PLCs ~ 1.6ms).  At the moment I do all the visa junk outside my read loop to keep latency down but
it's not fast enough.  What I believe would be better is to sample all of the Keithly's at once and then have labview parse the data
after.  This would require an external trigger which the 2000's can do but I'm not sure how to handle (parse?) the data.  Has anyone ever done something similar to this that can send me some sample code?  Any help is much appreciated.

[Albert.Geven]

You can do this also via bustriggering.
Look up Group Execute Trigger in the GPIB commands.
The triggering of all the instruments in the group is at the same time.
Afterwards you read out all the instruments after each other as for a normal read.
(except that you should not do a read but a fetch because a read also does a trigger.